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Latest recommendations
| Id | Title * ▲ | Authors * | Abstract * | Picture | Thematic fields * | Recommender | Reviewers | Submission date | |
|---|---|---|---|---|---|---|---|---|---|
04 Dec 2023
STAGE 1
Cerebral laterality as assessed by functional transcranial Doppler ultrasound in left-and right-handers: A comparison between handwriting and writing using a smartphoneDoes typing on a smartphone involve the same neural mechanisms as writing by hand?Recommended by D. Samuel Schwarzkopf based on reviews by Todd Richards and Dorothy Bishop
Language production is associated with a distinct lateralised pattern of brain activation biased toward the left cerebral hemisphere. This also applies to writing. It has also been shown to be modulated by handedness, with less pronounced lateralisation in left-handers. However, in recent decades the use of handwriting has declined significantly while the use of smartphones has exploded. To date, no study has explored whether the same neural correlates of written language production found for handwriting also hold for typing on a smartphone.
In the current study, Samsouris et al. (2023) will use functional transcranial Doppler ultrasound (fTCD) to measure blood flow velocity within cerebral hemispheres to investigate this question. This technique is particularly suited for this purpose because it provides better control for the movement confounds associated with a writing task and the technical challenges of using a smart device than other neuroimaging techniques like fMRI or M/EEG. The authors hypothesise that there will be no difference in left cerebral lateralisation for handwriting and typing on a smartphone. They also expect to replicate previous findings of weaker lateralisation in left-handers in written language production when typing on a smartphone. To isolate the effect of written language production, both these conditions will be corrected for their corresponding motor component using control conditions without a linguistic component.
The Stage 1 manuscript was evaluated over 6 rounds of in-depth review by the recommender and two expert reviewers, before issuing in-principle acceptance.
URL to the preregistered Stage 1 protocol: https://osf.io/j7egz
Level of bias control achieved: Level 6. No part of the data or evidence that will be used to answer the research question yet exists and no part will be generated until after IPA. List of eligible PCI RR-friendly journals:
References
1. Samsouris, C., Badcock, N. A., Vlachos, F., & Papadatou-Pastou, M. (2023). Cerebral laterality as assessed by functional transcranial Doppler ultrasound in left-and right-handers: A comparison between handwriting and writing using a smartphone. In principle acceptance of Version 7 by Peer Community in Registered Reports. https://osf.io/j7egz
| Cerebral laterality as assessed by functional transcranial Doppler ultrasound in left-and right-handers: A comparison between handwriting and writing using a smartphone | Christos Samsouris, Nicholas A. Badcock, Filippos Vlachos, Marietta Papadatou-Pastou | <p>Neuroscientific studies of traditional handwriting have revealed a left cerebral lateralization pattern for written language production, with distinct patterns between left- and right-handers. However, no study to date has investigated the cere... | Life Sciences, Social sciences | D. Samuel Schwarzkopf | 2022-11-01 10:27:39 | |||
01 Dec 2022
STAGE 1
Cerebral lateralization of writing in students at risk for dyslexia using functional Transcranial Doppler ultrasonographyLateralisation for written language in primary school students at risk for dyslexiaRecommended by Saloni Krishnan based on reviews by Margriet Groen and Todd Richards
While cerebral lateralisation for oral language is well-characterised, cerebral lateralisation for written language is much less well-understood. In this study, Papadopoulou et al. (2022) will use functional transcranial Doppler ultrasonography to assess lateralisation for written language in 7- to 9-year-old children at risk for dyslexia and neurotypical children. They will use tasks that assess efficiency in reading and writing names as well as speed and fluency in writing. The findings of this manuscript will highlight whether children with dyslexia showed atypical lateralisation for language in a written task. In addition, the authors plan to explore the correlation between lateralisation and writing competence.
The Stage 1 manuscript was evaluated over two rounds of in-depth review. Based on the edits made to the manuscript, and detailed responses to the reviewers' comments, the recommender judged that the manuscript met the Stage 1 criteria and therefore awarded in-principle acceptance (IPA).
URL to the preregistered Stage 1 protocol: https://osf.io/u54tk (under temporary private embargo)
Level of bias control achieved: Level 6. No part of the data or evidence that will be used to answer the research question yet exists and no part will be generated until after IPA. List of eligible PCI RR-friendly journals:
References
1. Papadopoulou, A.-K., Vlachos, F., Pervanidou, P., Anesiadou, S., Antoniou, F., Phylactou, P., Badcock, N.A. & Papadatou-Pastou, M. (2022). Cerebral lateralization of writing in students at risk for dyslexia using functional Transcranial Doppler ultrasonography, in principle acceptance of Version 2 by Peer Community in Registered Reports. https://osf.io/u54tk (under temporary private embargo)
| Cerebral lateralization of writing in students at risk for dyslexia using functional Transcranial Doppler ultrasonography | Anastasia-Konstantina Papadopoulou, Filippos Vlachos, Panagiota Pervanidou, Sofia Anesiadou, Faye Antoniou, Phivos Phylactou, Nicholas A. Badcock, Marietta Papadatou-Pastou | <p>It is well established that the left hemisphere is dominant in oral language in the majority of neurotypical individuals, while a more symmetrical pattern of activation in shown in cases of language disorders, such as dyslexia. Cerebral lateral... | Humanities, Life Sciences, Social sciences | Saloni Krishnan | Todd Richards, Margriet Groen | 2022-06-06 09:00:26 | ||
28 Feb 2024
STAGE 1
Changes in memory function in adults following SARS-CoV-2 infection: findings from the Covid and Cognition online studyIs memory affected in the long run following SARS-CoV-2 infection?Recommended by Vishnu Sreekumar based on reviews by Phivos Phylactou, Dipanjan Ray and Mitul Mehta
COVID-19 has been suspected to have long-lasting effects on cognitive function. The SARS-CoV-2 virus may enter the central nervous system (Frontera et al., 2020; Miners, Kehoe, & Love, 2020), explaining the observed detrimental effects of COVID-19 on verbal planning and reasoning (Hampshire et al., 2021; Wild et al., 2021), executive function (Hadad et al., 2022), and long-term memory (Guo et al., 2022). In particular, Guo et al. (2022) used verbal item recognition and non-verbal associative memory tasks. Weinerova et al. (2024), in the current study, propose to conduct a replication of Guo et al. (2022), but specifically, to disentangle the effect of COVID-19 infection status on both memory type (item vs. associative) and stimulus modality (verbal vs. non-verbal). Furthermore, Weinerova et al. (2024) propose to analyze cognitive function based on vaccination status before infection to provide a critical test of the potential protective effects of vaccination on cognitive function.
Data collection has been completed with 325 participants after exclusion criteria were applied (COVID group N = 232, No COVID group N = 93). Simulations assuming an effect size observed in Guo et al. (2022), a Bayesian t-test comparing the groups, and a Bayes Factor of 6 indicated that N = 320 is sufficient to detect an effect on 79% of simulations. The main analyses will be conducted using a Bayesian ANCOVA that allows for the inclusion of control variables such as age, sex, country, and education level. Both accuracy and reaction times from the item and associative recognition tasks will be analyzed as the dependent variables. In one analysis, vaccination status will be included as a between-subjects factor, to understand whether vaccination status at the time of infection influences subsequent cognitive function. It is important to note that participants were recruited through long-COVID Facebook groups and clinics. Therefore, the results must be interpreted carefully to avoid generalizing to all COVID-19 infections. The data are part of a larger longitudinal study, and the current pre-registration applies only to the baseline timepoint for a cross-sectional analysis. The remaining longitudinal data collection is ongoing and is not part of the current pre-registration. The study plan was refined after one round of review, with input from three external reviewers who all agreed that the proposed study was well-designed and scientifically valid. The recommender then reviewed the revised manuscript and judged that the study met the Stage 1 criteria for in-principle acceptance (IPA). URL to the preregistered Stage 1 protocol: https://osf.io/tjs5u (under temporary private embargo)
Level of bias control achieved: Level 3. At least some data/evidence that will be used to the answer the research question has been previously accessed by the authors (e.g. downloaded or otherwise received), but the authors certify that they have not yet observed ANY part of the data/evidence. List of eligible PCI RR-friendly journals:
References
1. Frontera, J., Mainali, S., Fink, E.L. et al. Global Consortium Study of Neurological Dysfunction in COVID-19 (GCS-NeuroCOVID): Study Design and Rationale. Neurocrit Care 33, 25–34 (2020). https://doi.org/10.1007/s12028-020-00995-3
2. Guo, P., Benito Ballesteros, A., Yeung, S. P., Liu, R., Saha, A., Curtis, L., Kaser, M., Haggard, M. P. & Cheke, L. G. (2022). COVCOG 2: Cognitive and Memory Deficits in Long COVID: A Second Publication From the COVID and Cognition Study. Frontiers in Aging Neuroscience. https://doi.org/10.3389/fnagi.2022.804937 3. Hadad, R., Khoury, J., Stanger, C., Fisher, T., Schneer, S., Ben-Hayun, R., Possin, K., Valcour, V., Aharon-Peretz, J. & Adir, Y. (2022). Cognitive dysfunction following COVID-19 infection. Journal of NeuroVirology, 28(3), 430–437. https://doi.org/10.1007/s13365-022-01079-y 4. Hampshire, A., Trender, W., Chamberlain, S. R., Jolly, A. E., Grant, J. E., Patrick, F., Mazibuko, N., Williams, S. C., Barnby, J. M., Hellyer, P. & Mehta, M. A. (2021). Cognitive deficits in people who have recovered from COVID-19. EClinicalMedicine, 39, 101044. https://doi.org/10.1016/j.eclinm.2021.101044 5. Miners, S., Kehoe, P. G., & Love, S. (2020). Cognitive impact of COVID-19: looking beyond the short term. Alzheimer's research & therapy, 12, 1-16. https://doi.org/10.1186/s13195-020-00744-w 6. Weinerova, J., Yeung, S., Guo, P., Yau, A., Horne, C., Ghinn, M., Curtis, L., Adlard, F., Bhagat, V., Zhang, S., Kaser, M., Bozic, M., Schluppeck, D., Reid, A., Tibon, R. & Cheke, L. G. (2024). Changes in memory function in adults following SARS-CoV-2 infection: findings from the Covid and Cognition online study. In principle acceptance of Version 2 by Peer Community in Registered Reports. https://osf.io/tjs5u
7. Wild, C. J., Norton, L., Menon, D. K., Ripsman, D. A., Swartz, R. H. & Owen, A. M. (2022). Disentangling the cognitive, physical, and mental health sequelae of COVID-19. Cell Reports Medicine, 3, 100750. https://doi.org/10.1016/j.xcrm.2022.100750 | Changes in memory function in adults following SARS-CoV-2 infection: findings from the Covid and Cognition online study | Josefina Weinerova, Sabine Yeung, Panyuan Guo, Alice Yau, Connor Horne, Molly Ghinn, Lyn Curtis, Francess Adlard, Vidita Bhagat, Seraphina Zhang, Muzaffer Kaser, Mirjana Bozic, Denis Schluppeck, Andrew Reid, Roni Tibon, Lucy Cheke | <p>SARS-CoV-2, the virus responsible for the Covid-19 pandemic, has been shown to have an impact on cognitive function, but the specific aspects of cognition that are affected remain unclear. In this Registered Report, we present a study aimed at ... | Life Sciences | Vishnu Sreekumar | 2023-08-14 11:09:45 | |||
06 Jun 2022
STAGE 1
Communicating dynamic norms with visual cuesCan dynamic norm information reduce indicators of meat consumption?Recommended by Chris Chambers based on reviews by Gabriela Jiga-Boy and 1 anonymous reviewer
Human meat consumption is associated with a variety of risks to health, animal welfare, sustainability, and the environment (including greenhouse gas emissions and loss of biodiversity), prompting a growing research effort to develop psychological interventions to reduce it and encourage alternative diets. At the same time, although meat consumption remains the majority choice in the UK, its prevalence is declining, with the proportion of vegetarians and vegans increasing substantially over the last two decades.
One potential tool to accelerate behaviour change is to expose people to “dynamic norm” messaging, which, rather than providing static descriptive information about the prevalence of a desired behaviour, emphasises how the desired behaviour is changing over time so that people can begin to conform to the emerging trend. Although promising in theory, previous research offers mixed evidence on the effectiveness of dynamic norms in encouraging a reduction in meat consumption, with some studies suggesting benefits and others showing no effect or even counterproductive effects. The methodological rigour of some studies is also in question.
In the present study, Aldoh et al. (2022) will investigate the effectiveness of dynamic norm information (compared to static norms) on several indicators of meat consumption, including interest, attitudes, and intentions toward reducing meat consumption, as well as self-reported meat consumption itself. Using an online sample up to 1500 participants, the authors will also test the role of visual cues (including data trend graphics) in causing any effects and will explore the potential longevity of the intervention over a period of 7 days.
The Stage 1 manuscript was evaluated over two rounds of in-depth review. Based on detailed responses to the reviewers' comments, the recommender judged that the manuscript met the Stage 1 criteria and therefore awarded in-principle acceptance (IPA).
URL to the preregistered Stage 1 protocol: https://osf.io/txzvm
Level of bias control achieved: Level 6. No part of the data or evidence that will be used to answer the research question yet exists and no part will be generated until after IPA.
List of eligible PCI RR-friendly journals:
References
1. Aldoh, A., Sparks, P. & Harris, P. R. (2022). Communicating dynamic norm information, in principle acceptance of Version 3 by Peer Community in Registered Reports. https://osf.io/txzvm
| Communicating dynamic norms with visual cues | Alaa Aldoh, Paul Sparks, Peter R Harris | <p>While decreasing meat consumption is one of the most impactful behaviours an individual may do to reduce their carbon emissions, it is still a minority behaviour in many parts of the world. Research suggests that communicating information about... | Social sciences | Chris Chambers | 2021-08-11 18:52:41 | |||
Communicating Dynamic Norms With Visual CuesNo short-term benefit of a dynamic norm intervention on reducing indicators of meat consumptionRecommended by Chris Chambers based on reviews by Gabriela Jiga-Boy
Human meat consumption is associated with a variety of risks to health, animal welfare, sustainability, and the environment (including greenhouse gas emissions and loss of biodiversity), prompting a growing research effort to develop psychological interventions to reduce it and encourage alternative diets. At the same time, although meat consumption remains the majority choice in the UK, its prevalence is declining, with the proportion of vegetarians and vegans increasing substantially over the last two decades.
One potential tool to accelerate behaviour change is to expose people to “dynamic norm” messaging, which, rather than providing static descriptive information about the prevalence of a desired behaviour, emphasises how the desired behaviour is changing over time so that people can begin to conform to the emerging trend. Although promising in theory, previous research offers mixed evidence on the effectiveness of dynamic norms in encouraging a reduction in meat consumption, with some studies suggesting benefits and others showing no effect or even counterproductive effects. The methodological rigour of some studies is also in question.
In the present study, Aldoh et al. (2023) investigated the effectiveness of dynamic norm information (compared to static norms) on several indicators of meat consumption, including interest, attitudes, and intentions toward reducing meat consumption, as well as self-reported meat consumption itself. Using an online sample of ~1500 participants, the authors also tested the role of visual cues (including data trend graphics) in causing any effects and explored the potential longevity of the intervention over a period of 7 days. Results revealed moderate evidence for no net effect of dynamic (compared to static) norm information on meat consumption outcomes, nor any positive change over the 7-day period. However, the addition of visual cues enhanced the effect of dynamic norm messages, suggesting potential avenues for increasing the potency of future messaging interventions.
The Stage 2 manuscript was evaluated over one round of in-depth review, following which the recommender judged that the manuscript met the Stage 2 criteria and awarded a positive recommendation.
URL to the preregistered Stage 1 protocol: https://osf.io/txzvm
Level of bias control achieved: Level 6. No part of the data or evidence that was used to answer the research question was generated until after IPA.
List of eligible PCI RR-friendly journals:
References
1. Aldoh, A., Sparks, P. & Harris, P. R. (2023). Communicating dynamic norm information [Stage 2]. Acceptance of Version 1 by Peer Community in Registered Reports. https://doi.org/10.31234/osf.io/tac3j
| Communicating Dynamic Norms With Visual Cues | Alaa Aldoh, Paul Sparks, Peter R. Harris | <p>While decreasing their meat consumption is one of the most impactful behaviours an individual may carry out to reduce their carbon emissions, it is still a minority behaviour in many parts of the world. Research suggests that communicating info... | Social sciences | Chris Chambers | Wendy Van Lippevelde, Gabriela Jiga-Boy | 2023-03-15 12:58:28 | ||
23 Jan 2023
STAGE 1
Comparing time versus money in sunk cost effects: Replication of Soman (2001)Are sunk cost effects weaker for time than money?Recommended by Chris Chambers based on reviews by Johanna Peetz, Christopher Olivola, David Ronayne, Johannes Leder and Dilip Soman
The sunk cost fallacy is a cognitive bias in which people persist with a decision that is no longer optimal because of previous resources they have invested (now considered to be spent or “sunk”). Most of us will have heard sunk costs reflected in the saying “throwing good money after bad”, but sunk costs can, in theory, occur more broadly, whether for money, time or any other resource-limited investment. The sunk cost effect for money has been widely studied and appears robust; in contrast, the sunk cost effect for time is more uncertain, and is potentially moderated by the age of respondents (and likely resource availability), the fact that time is irreplaceable, and the tendency for people to account for time less easily than they do for money. In an impactful study, Soman (2001) found that the sunk cost effect for time was indeed weaker than for money, although this finding has not been widely replicated.
In the current study, Petrov et al. (2023) propose a replication of three studies from Soman (2001), asking whether sunk costs are weaker for time than for money, and then testing whether the relative absence of a sunk time cost arises from the inability of participants to account for time or due to more rational beliefs in the evaluation of past time investments.
The Stage 1 manuscript was evaluated over two rounds of in-depth review. Based on detailed responses to the reviewers' comments, the recommender judged that the manuscript met the Stage 1 criteria and therefore awarded in-principle acceptance (IPA).
URL to the preregistered Stage 1 protocol: https://osf.io/65htv Level of bias control achieved: Level 6. No part of the data or evidence that will be used to answer the research question yet exists and no part will be generated until after IPA.
List of eligible PCI RR-friendly journals:
References
1. Soman, D. (2001). The mental accounting of sunk time costs: Why time is not like money. Journal of Behavioral Decision Making,14, 169-185. https://doi.org/10.1002/bdm.370
2. Petrov, N. B., Chan, Y. K., Lau, C. N., Kwok, T. H., Chow, L. C., Lo, W. Y. V, Song W., & Feldman, G. (2023). Sunk cost effects for time versus money: Replication of Soman (2001) [Registered Report Stage 1], in principle acceptance of Version 3 by Peer Community in Registered Reports. https://osf.io/u34zb
| Comparing time versus money in sunk cost effects: Replication of Soman (2001) | Nikolay Petrov, Wenkai Song, Yin Kan (Megan) CHAN, Cheuk Nam (Chris) LAU, Tin Ho (Donald) KWOK, Lok Ching (Estelle) CHOW, Wai Yan (Vivian) LO, Gilad Feldman (gfeldman@hku.hk) | <p>This is a scheduled PCI-RR snap shot for a planned project: "Comparing time versus money in sunk cost effects: Replication of Soman (2001) "</p> | Social sciences | Chris Chambers | 2022-02-23 10:39:42 | |||
21 Mar 2023
STAGE 1
Convenience Samples and Measurement Equivalence in Replication ResearchDoes data from students and crowdsourced online platforms measure the same thing? Determining the external validity of combining data from these two types of subjectsRecommended by Corina Logan based on reviews by Benjamin Farrar and Shinichi Nakagawa
Comparative research is how evidence is generated to support or refute broad hypotheses (e.g., Pagel 1999). However, the foundations of such research must be solid if one is to arrive at the correct conclusions. Determining the external validity (the generalizability across situations/individuals/populations) of the building blocks of comparative data sets allows one to place appropriate caveats around the robustness of their conclusions (Steckler & McLeroy 2008).
In this registered report, Alley and colleagues plan to tackle the external validity of comparative research that relies on subjects who are either university students or participating in experiments via an online platform (Alley et al. 2023). They will determine whether data from these two types of subjects have measurement equivalence - whether the same trait is measured in the same way across groups. Although they use data from studies involved in the Many Labs replication project to evaluate this question, their results will be of crucial importance to other comparative researchers whose data are generated from these two sources (students and online crowdsourcing). If Alley and colleagues show that these two types of subjects have measurement equivalence, then this indicates that it is more likely that equivalence could hold for other studies relying on these type of subjects as well. If measurement equivalence is not found, then it is a warning to others to evaluate their experimental design to improve validity. In either case, it gives researchers a way to test measurement equivalence for themselves because the code is well annotated and openly available for others to use.
The Stage 1 manuscript was evaluated over two rounds of in-depth review. Based on detailed responses to the reviewers' comments, the recommender judged that the manuscript met the Stage 1 criteria and therefore awarded in-principle acceptance (IPA). Level of bias control achieved: Level 2. At least some data/evidence that will be used to answer the research question has been accessed and partially observed by the authors, but the authors certify that they have not yet observed the key variables within the data that will be used to answer the research question AND they have taken additional steps to maximise bias control and rigour (e.g. conservative statistical threshold; recruitment of a blinded analyst; robustness testing, multiverse/specification analysis, or other approach)
List of eligible PCI RR-friendly journals:
References
Alley L. J., Axt, J., & Flake J. K. (2023). Convenience Samples and Measurement Equivalence in Replication Research, in principle acceptance of Version 4 by Peer Community in Registered Reports. https://osf.io/7gtvf
Steckler, A. & McLeroy, K. R. (2008). The importance of external validity. American Journal of Public Health 98, 9-10. https://doi.org/10.2105/AJPH.2007.126847
Pagel, M. (1999). Inferring the historical patterns of biological evolution. Nature, 401, 877-884. https://doi.org/10.1038/44766
| Convenience Samples and Measurement Equivalence in Replication Research | Lindsay J. Alley, Jordan Axt, Jessica Kay Flake | <p>A great deal of research in psychology employs either university student or online crowdsourced convenience samples (Chandler & Shapiro, 2016; Strickland & Stoops, 2019) and there is evidence that these groups differ in meaningful ways ... | Social sciences | Corina Logan | 2022-11-29 18:37:54 | |||
Convenience Samples and Measurement Equivalence in Replication ResearchData from students and crowdsourced online platforms do not often measure the same thingRecommended by Corina Logan based on reviews by Benjamin Farrar and Shinichi Nakagawa
Comparative research is how evidence is generated to support or refute broad hypotheses (e.g., Pagel 1999). However, the foundations of such research must be solid if one is to arrive at the correct conclusions. Determining the external validity (the generalizability across situations/individuals/populations) of the building blocks of comparative data sets allows one to place appropriate caveats around the robustness of their conclusions (Steckler & McLeroy 2008). In the current study, Alley and colleagues (2023) tackled the external validity of comparative research that relies on subjects who are either university students or participating in experiments via an online platform. They determined whether data from these two types of subjects have measurement equivalence - whether the same trait is measured in the same way across groups. Although they use data from studies involved in the Many Labs replication project to evaluate this question, their results are of crucial importance to other comparative researchers whose data are generated from these two sources (students and online crowdsourcing). The authors show that these two types of subjects do not often have measurement equivalence, which is a warning to others to evaluate their experimental design to improve validity. They provide useful recommendations for researchers on how to to implement equivalence testing in their studies, and they facilitate the process by providing well annotated code that is openly available for others to use. After one round of review and revision, the recommender judged that the manuscript met the Stage 2 criteria and awarded a positive recommendation. URL to the preregistered Stage 1 protocol: https://osf.io/7gtvf
Level of bias control achieved: Level 2. At least some data/evidence that was used to answer the research question had been accessed and partially observed by the authors prior to Stage 1 IPA, but the authors certify that they had not yet observed the key variables within the data that were used to answer the research question AND they took additional steps to maximise bias control and rigour.
List of eligible PCI RR-friendly journals:
References
1. Pagel, M. (1999). Inferring the historical patterns of biological evolution. Nature, 401, 877-884. https://doi.org/10.1038/44766
2. Steckler, A. & McLeroy, K. R. (2008). The importance of external validity. American Journal of Public Health 98, 9-10. https://doi.org/10.2105/AJPH.2007.126847
3. Alley L. J., Axt, J., & Flake J. K. (2023). Convenience Samples and Measurement Equivalence in Replication Research [Stage 2 Registered Report] Acceptance of Version 2 by Peer Community in Registered Reports. https://osf.io/s5t3v
| Convenience Samples and Measurement Equivalence in Replication Research | Lindsay J. Alley, Jordan Axt, Jessica Kay Flake | <p>A great deal of research in psychology employs either university student or online crowdsourced convenience samples (Chandler & Shapiro, 2016; Strickland & Stoops, 2019) and there is evidence that these groups differ in meaningful ways ... | Social sciences | Corina Logan | Alison Young Reusser | 2023-08-31 20:26:43 | ||
25 Jun 2023
STAGE 1
Cortical plasticity of the tactile mirror system in borderline personality disorderIs borderline personality disorder linked to impairment of the tactile mirror system?Recommended by Chris Chambers based on reviews by Zoltan Dienes and 2 anonymous reviewers
Borderline personality disorder (BPD) is a mental illness affecting ~1 in 100 people (Ellison et al., 2018), characterised by emotional dysregulation, impulsivity, a distorted sense of self, and a long-term pattern of unstable interpersonal relationships. Among this heterogenous range of symptoms is difficulty in the cognitive dimension of empathy, in particular understanding the perspectives of others, which in turn has been suggested to rely on the mirror neuron system, both in the motor and somatosensory domains. The integrity of the mirror system has therefore been a focus for understanding the possible causes or consequences of the disorder, with preliminary studies pointing to hypoactivity of neuronal areas associated with the mirror system in BPD (Mier et al., 2013).
In the current study, Zazio et al. (2023) will use crossmodal paired associative stimulation (cm-PAS) in which an image of a hand being touched is repeatedly paired with transcranial magnetic stimulation (TMS) of the primary somatosensory cortex (S1) to test the hypothesis that BPD is associated with a specific deficit in the tactile mirror system. In healthy controls, the close temporal coupling (20ms) between the visual depiction of tactile stimulation and TMS of S1 is expected boost tactile acuity and elevate the performance cost of incongruence in a task that manipulates visuo-tactile spatial congruity (VTSC) – effects that are thought to reflect the fidelity of the tactile mirror system.
In BPD patients, however, the authors make the crucial prediction that impairment of the tactile mirror system (if present) will lead to a reduced (or even non-existent) effect of cm-PAS on tactile acuity and VTSC task performance compared to healthy controls. To help ensure a severe test of this hypothesis, the design includes a variety of controls, including an attention check, control cm-PAS in which the inter-stimulus interval is increased to 100ms to break the close temporal coupling between visual stimulation and TMS, and a positive control to confirm that active cm-PAS (compared to control cm-PAS) produces the expected boost in tactile acuity in healthy controls.
The Stage 1 manuscript was evaluated over three rounds of in-depth review. Based on detailed responses to the reviewers' comments, the recommender judged that the manuscript met the Stage 1 criteria and therefore awarded in-principle acceptance (IPA).
URL to the preregistered Stage 1 protocol: https://osf.io/sqnwd
Level of bias control achieved: Level 6. No part of the data or evidence that will be used to answer the research question yet exists and no part will be generated until after IPA. List of eligible PCI RR-friendly journals:
References
1. Ellison, W. D., Rosenstein, L. K., Morgan, T. A., & Zimmerman, M. (2018). Community and clinical epidemiology of borderline personality disorder. Psychiatric Clinics, 41, 561-573. https://doi.org/10.1016/j.psc.2018.07.008
2. Mier, D., Lis, S., Esslinger, C., Sauer, C., Hagenhoff, M., Ulferts, J., Gallhofer, B. & Kirsch, P. (2013). Neuronal correlates of social cognition in borderline personality disorder. Social Cognitive and Affective Neuroscience, 8, 531-537. https://doi.org/10.1093/scan/nss028 2. Zazio, A., Guidali, G., Rossi, R., Bolognini, N. & Bortoletto, A. (2023). Cortical plasticity of the tactile mirror system in borderline personality disorder, in principle acceptance of Version 4 by Peer Community in Registered Reports. https://osf.io/sqnwd
| Cortical plasticity of the tactile mirror system in borderline personality disorder | Agnese Zazio, Giacomo Guidali, Roberta Rossi, Nadia Bolognini, Marta Bortoletto | <p>People with borderline personality disorder (BPD) show alterations in empathic abilities, which may involve automatic simulation processes relying on mirror-like mechanisms in the somatosensory domain. In the tactile mirror system, the observat... | Life Sciences, Social sciences | Chris Chambers | 2023-01-05 21:50:15 | |||
27 Nov 2023
STAGE 1
Cortical voice processing in Autism Spectrum DisorderIs voice processing impacted in Autism Spectrum Disorder?Recommended by Grace Edwards and D. Samuel Schwarzkopf based on reviews by 2 anonymous reviewers
Vocal sounds, including both speech and non-speech sounds, have been found to activate the Superior Temporal Sulci and Gyri in comparison to non-vocal sounds. These regions, termed Temporal Voice Areas (TVAs), are considered to be involved in early voice processing and therefore critical for social interaction. TVA activation has been examined in Autism Spectrum Disorder (ASD) to determine if the characteristic difficulties in social communication and interaction are linked to an impaired early voice processing. Using functional magnetic resonance imaging (fMRI), one study found typical brain activation in TVAs for 15 out of 16 autistic participants (Schelinski et al., 2016), whereas another found atypical activation in 4 out of 5 autistic participants (Gervais et al., 2004).
Here, the inconsistencies in the previous literature propel Gautier et al. (2023) to examine brain activation of TVAs with a larger sample size (26 ASD and 26 non-ASD participants). Gautier et al. (2023) will present vocal sounds and non-vocal sounds to both groups of participants during fMRI and predict that fewer participants in the ASD group will show a preferential response to voices in TVAs compared to the non-ASD group. These results would suggest that symptoms of ASD interfere with early stages of social interaction, at the level of voice processing.
This Stage 1 manuscript was evaluated in an initial round by the co-recommenders and another two rounds of in-depth review by two expert reviewers. With these revisions, the recommenders judged that the manuscript met the Stage 1 criteria and awarded in-principle acceptance (IPA).
URL to the preregistered Stage 1 protocol: https://osf.io/538m4
Level of bias control achieved: Level 6. No part of the data or evidence that will be used to answer the research question yet exists and no part will be generated until after IPA. List of eligible PCI RR-friendly journals:
References
1. Gautier, R., Houy-Durand, E., Barantin, L., Briend, F. & Latinus, M. (2023). Cortical voice processing in Autism Spectrum Disorder. In principle acceptance of Version 4 by Peer Community in Registered Reports. https://osf.io/538m4 | Cortical voice processing in Autism Spectrum Disorder | Raphaël Gautier, Emmanuelle Houy-Durand, Laurent Barantin, Frederic Briend, Marianne Latinus | <p>Voice processing is central to social functioning. A specific brain response to vocal sounds has been described and extensively characterized in the general population but remains critically unexplored in Autism Spectrum Disorder (ASD), a condi... | Life Sciences | Grace Edwards | 2023-03-28 09:51:48 |
