Please note that we will be CLOSED to ALL SUBMISSIONS from 1 December 2024 through 12 January 2025 to give our recommenders and reviewers a holiday break.
We are recruiting recommenders (editors) from all research fields!
Your feedback matters! If you have authored or reviewed a Registered Report at Peer Community in Registered Reports, then please take 5 minutes to leave anonymous feedback about your experience, and view community ratings.
Latest recommendations
| Id | Title * | Authors * ▲ | Abstract * | Picture | Thematic fields * | Recommender | Reviewers | Submission date | |
|---|---|---|---|---|---|---|---|---|---|
29 Jun 2022
STAGE 1
Go above and beyond: Does input variability affect children’s ability to learn spatial adpositions in a novel language?Can discriminative learning theory explain productive generalisation in language?Recommended by Chris Chambers based on reviews by Julien Mayor, Natalia Kartushina, Caroline Rowland and 1 anonymous reviewer
One of the major challenges in studies of language learning is understanding productive generalisation – the ability to use words and linguistic structures in novel settings that the learner has never encountered previously. According to discriminative learning theory, this skill arises from an iterative process of prediction and error-correction that gradually reduces uncertainty, allowing learners to discriminate linguistic outcomes and to identify informative, invariant cues for generalisation to novel cases. In the current study, Viviani et al (2022) use computational modelling to propose a central hypothesis stemming from this theory that children will learn the meaning and use of spatial adpositions (words such as “above” and “below” that describe relative positions) more effectively when there is more variability in the use of the nouns within the spatial sentences. They will also test a range of additional hypotheses, including that learning and generalisation to novel contexts will be enhanced when children learn from skewed distributions that are similar to those found in natural languages.
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/37dxr Level of bias control achieved: Level 6. Some of the data that will be used in the preregistered analyses was obtained in the second of two pilot experiments. However, since no further revisions to the analysis plan were made after this pilot, the risk of bias due to prior data observation remains zero, and the manuscript therefore qualifies for Level 6.
List of eligible PCI RR-friendly journals:
References
1. Viviani, E., Ramscar, M. & Wonnacott, E. (2022). Go above and beyond: Does input variability affect children’s ability to learn spatial adpositions in a novel language? In principle acceptance of Version 4 by Peer Community in Registered Reports. https://osf.io/37dxr
| Go above and beyond: Does input variability affect children’s ability to learn spatial adpositions in a novel language? | Eva Viviani1, Michael Ramscar2, Elizabeth Wonnacott1 [1: University of Oxford, 2: University of Tübingen] | <p>Human language is characterized by productivity, that is, the ability to use words and structures in novel contexts. How do learners acquire these productive systems? Under a <em>discriminative learning approach,</em> language learning involves... | | Social sciences | Chris Chambers | 2021-11-15 15:04:42 | ||
14 Nov 2023
STAGE 1
Scrolling to wisdom: the impact of social media news exposure on knowledge perceptionMight we know less about current events than we think we do?Recommended by Moin Syed based on reviews by Adrien Fillon, Erik Løhre and Moritz Ingendahl
We are bombarded with news about current events from multiple sources: print media, digital media, friends, family, and more. At the same time, there is an imperative to “stay informed” and be knowledgeable of happenings both local and global. But how much knowledge do we actually gain from this bombardment of information? How informed are we really? It turns out that our perceptions of our knowledge tends to overstate our actual knowledge of a topic. This “illusion of knowledge” effect has been studied across a wide variety of contexts, but is especially relevant for understanding how people learn about and interact with politicized topics.
In the current study, Ruzzante et al. (2023) propose to further our understanding of the illusion of knowledge effect in the context of news exposure on social media. They will use an online pre-post experimental design that assesses participants’ perceived knowledge of a number of topics prior to the manipulation, which involves exposure to different social media news feeds, coming two weeks later. Central to the study, participants will be randomized to news stories that differ in their degree of self-involvement, that is how emotionally involved the topics are. Ruzzante et al. will test the hypothesis that more highly self-involved topics (e.g., abortion) will lead to a greater illusion of knowledge effect than less self-involved topics (e.g., feline immunodeficiency).
The Stage 1 manuscript was evaluated over two rounds of in-depth peer review, the first consisting of substantial comments from three scholars with relevant expertise, and the second consisting of a close review by the recommender. Based on detailed responses to the reviewers' comments, the recommender judged that the manuscript met the Stage 1 criteria and was therefore awarded in-principle acceptance (IPA).
URL to the preregistered Stage 1 protocol: https://osf.io/qa7tb
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. Ruzzante, F., Cevolani, G., & Panizza, F. (2023). Scrolling to wisdom: The impact of social media news exposure on knowledge perception. In principle acceptance of Version 5 by Peer Community in Registered Reports. https://osf.io/qa7tb
| Scrolling to wisdom: the impact of social media news exposure on knowledge perception | Federica Ruzzante, Gustavo Cevolani, Folco Panizza | <p>The present study aims to test the effect of exposure to news in a social media environment on people’s perceived knowledge of selected topics and on the “illusion of knowledge” effect, i.e., the overestimation of one’s perceived knowledge rela... | Social sciences | Moin Syed | 2022-10-12 21:16:51 | |||
30 Oct 2023
STAGE 1
The role of spatial location in irrelevant speech revisited: A pre-registered replicationDoes auditory stream segregation reduce the irrelevant speech effect?Recommended by Chris Chambers based on reviews by Massimo Grassi and 2 anonymous reviewers
The irrelevant-speech effect (ISE) is a laboratory phenomenon in which performance at memory recall is impaired by the presence of irrelevant auditory stimuli during the initial encoding phase. In a typical ISE experiment, participants are asked to remember a sequence of letters presented visually (e.g. F, K, L, M, Q, R, Y in a shuffled random order between trials) while irrelevant speech is played over headphones. The typical finding is that recall performance is impaired by the presentation of speech compared with silence. The ISE has been influential in cognitive psychology, prompting the advancement of two broad classes of competing explanations: one in which the irrelevant sounds gain automatic access to memory processes without any specified role for attentional selection, and another in which the ISE is explained by irrelevant speech drawing attention away from the relevant items to be recalled.
In the current study, Kattner et al. (2023) propose a replication of a seminal study by Jones and Macken (1995) that provided a foundation for the automatic access (or ‘interference-by-process’) class of theories. In their original set of experiments, Jones and Macken reported that the segregating individual components of the irrelevant speech (the spoken letters V, J, and X) into different lateralized locations reduced the magnitude of the ISE by converting a single ‘changing-state’ stream three separate ‘steady-state’ streams. Here, Kattner et al. ask firstly whether this classic finding can be successfully replicated in a well-powered sample, and secondly whether the streaming-by-location effect in Jones and Macken reduces the ISE to the same level as observed during a steady-state baseline condition in which a single letter is repeated from each location. If the answer to either question is No then doubts will have been raised about interference-by-process theories, opening the door (even more) to alternative theoretical explanations of the ISE.
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/2tb8e
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. Jones, D. M. & Macken, W. J. (1995). Organizational factors in the effect of irrelevant speech: The role of spatial location and timing. Memory & Cognition, 23, 192–200. https://doi.org/10.3758/BF03197221
2. Kattner, F., Hassanzadeh, M. & Ellermeier, W. (2023). The role of spatial location in irrelevant speech revisited: A registered replication of Jones and Macken (1995). In principle acceptance of Version 3 by Peer Community in Registered Reports. https://osf.io/2tb8e | The role of spatial location in irrelevant speech revisited: A pre-registered replication | Florian Kattner, Mitra Hassanzadeh, & Wolfgang Ellermeier | <p>The goal of the present investigation is to perform a preregistered replication of Jones and Macken’s (1995b) study, which showed that the segregation of a sequence of sounds to distinct spatial locations reduced the detrimental effects of irre... | Social sciences | Chris Chambers | 2023-04-26 17:01:57 | |||
06 Feb 2023
STAGE 1
Investigating the impact of vascular risk factors on the progression of white matter lesionsUnderstanding predictors of white matter lesions in the human brainRecommended by Chris Chambers based on reviews by Max Elliott, Isabel Garcia Garcia and 1 anonymous reviewer
Cerebral small vessel disease (CSVD) is a common and multi-faceted set of pathologies that affect the small arteries, arterioles, venules and capillaries of the brain. The disease manifests through a range of symptoms and conditions, including psychiatric disorders, abnormal gait, and urinary incontinence, while accounting for 25% of strokes and nearly 50% of dementia.
The presence of CSVD is associated with white matter lesions (WML) detected using neuroimaging, which have in turn been shown to predict future stroke, cognitive decline and dementia. While vascular risk factors of CSVD (such as hypertension and obesity) are also associated with CSVD, a complete picture of the predictive relationship between WML, cognitive decline, and blood pressure remains to be determined, as does the role of sex/gender. These inter-relationships are important to determine for improving the diagnosis and treatment of CSVD.
In the current study, Beyer et al. will analyse a large emerging dataset from the LIFE-Adult project – a longitudinal, two-wave, population-based study – to ask whether higher blood pressure predicts a greater increase in WML, and whether progression of WML is associated with measures of memory and executive function. In addition, the authors will explore the relationship between abdominal obesity and WML progression, and the extent to which WML progression, and its interaction with vascular risk factors, depends on sex/gender.
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/qkbgj 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.
List of eligible PCI RR-friendly journals:
References
1. Beyer, F., Lammer, L., Loeffler, M., Riedel-Heller, S., Villringer, A. & Witte, V. (2023). Investigating the impact of vascular risk factors on the progression of white matter lesions, in principle acceptance of Version 2 by Peer Community in Registered Reports. https://osf.io/qkbgj
| Investigating the impact of vascular risk factors on the progression of white matter lesions | Frauke Beyer,Laurenz Lammer, Markus Loeffler, Steffi Riedel-Heller, Arno Villringer, Veronica Witte | <p>Cerebral small vessel disease (cSVD) is a major brain pathology contributing to cognitive decline and dementia. Vascular risk factors have been associated with imaging markers of cSVD such as white matter lesions, yet longitudinal studies have ... | Life Sciences | Chris Chambers | Max Elliott, Isabel Garcia Garcia | 2022-10-07 13:44:11 | ||
Progression of white matter hyperintensities is related to blood pressure increases and global cognitive decline – a registered reportWhite matter lessions are associated with increases in blood pressure and global cognitive declineRecommended by Chris Chambers based on reviews by Isabel Garcia Garcia
Cerebral small vessel disease (CSVD) is a common and multi-faceted set of pathologies that affect the small arteries, arterioles, venules and capillaries of the brain. The disease manifests through a range of symptoms and conditions, including psychiatric disorders, abnormal gait, and urinary incontinence, while accounting for 25% of strokes and nearly 50% of dementia.
The presence of CSVD is associated with white matter lesions detected as white matter hyperintensities (WMH) using neuroimaging, which have in turn been shown to predict future stroke, cognitive decline and dementia. While vascular risk factors of CSVD (such as hypertension and obesity) are also associated with CSVD, a complete picture of the predictive relationship between WMH, cognitive decline, and blood pressure remains to be determined, as does the role of sex/gender. These inter-relationships are important to determine for improving the diagnosis and treatment of CSVD.
In the current study, Beyer et al. analysed a large emerging dataset from the LIFE-Adult project – a longitudinal, two-wave, population-based study – to ask whether higher blood pressure predicts a greater increase in WMH, and whether progression of WMH is associated with measures of memory and executive function. In addition, the authors explored the relationship between abdominal obesity and WMH progression, and the extent to which WMH progression, and its interaction with vascular risk factors, depends on sex/gender.
Results revealed no reliable association between baseline blood pressure with WMH progression. WMH progression significantly predicted global cognitive decline but not decline in executive function specifically. Exploratory analyses revealed that increases in diastolic blood pressure as well as baseline and systolic blood pressure were associated with WMH progression, specifically in frontal periventricular regions, but there was no association of waist-to-hip ratio (a proxy of abdominal fat deposits) with WMH progression nor any gender-specific associations. The authors conclude that strict control of blood pressure might confer a protective effect, limiting WMH progression and negative effects on global cognitive function in the middle-aged to older population.
The Stage 2 manuscript was evaluated over one round of in-depth review. Based on responses to the reviewer's comments, 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/qkbgj 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 in-principle acceptance, but the authors certify that they had not yet observed the key variables within the data that were used to answer the research question.
List of eligible PCI RR-friendly journals: References
1. Beyer, F., Lammer, L., Loeffler, M., Riedel-Heller, S., Debette, S., Villringer, A. & Witte, A. V. (2023). Progression of white matter hyperintensities is related to blood pressure increases and global cognitive decline – a registered report [Stage 2]. Acceptance of Version 2 by Peer Community in Registered Reports. https://osf.io/k24pm
| Progression of white matter hyperintensities is related to blood pressure increases and global cognitive decline – a registered report | Frauke Beyer, Laurenz Lammer, Markus Loeffler, Steffi Riedel-Heller, Stéphanie Debette, Arno Villringer, A. Veronica Witte | <p>Introduction<br>White matter hyperintensities (WMH) reflect cerebral small vessel disease (cSVD), a major brain pathology contributing to cognitive decline and dementia. Vascular risk factors including higher diastolic blood pressure (DBP) have... |  | Humanities, Medical Sciences | Chris Chambers | 2024-02-15 17:16:37 | ||
25 Mar 2024
STAGE 1
Reading and vocabulary knowledge in English-Meetei Mayek biliteratesDiversifying our understanding of children’s word learningRecommended by Moin Syed based on reviews by Maxine Schaefer and 1 anonymous reviewer
The positive relation between word reading and children’s vocabulary development has been extensively documented. That said, like most research in psychology and the behavioral sciences, the available evidence comes predominantly from majority populations. In the context of language learning, that means monolingual speakers or multilingual speakers where there is close alignment between home and school language learning. But what does the relation between word learning and vocabulary knowledge look like when the learning contexts are discordant?
In the current study, Pamei et al. (2024) propose to examine this question by investigating word learning and vocabulary development in two languages, English and Meetei Mayek, among a sample of Grade 3 (approximate age 10), students in Manipur, India. In this context, formal literacy education begins in English rather than in students’ regional home language of Meetei Mayek. This fact provides an innovative context in which to understand how a) whether the relation between word reading and vocabulary looks different in the two languages, and b) whether there is linguistic interdependence between learning in the two languages. This study is poised to bring important underrepresented data that goes beyond the dominant contexts from which our knowledge of language learning has been generated, and thus has the potential to contribute to new lines of empirical and theoretical work that is inclusive of global variations.
The Stage 1 manuscript was evaluated over three rounds of in-depth peer review, the first two consisting of substantial comments from two scholars with relevant expertise, and the third consisting of a close review by the recommender. 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/7htv2
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. Pamei, G., McBride, C. & Inoue, T. (2024). Reading and vocabulary knowledge in English-Meetei Mayek biliterates. In principle acceptance of Version 3 by Peer Community in Registered Reports. https://osf.io/7htv2
| Reading and vocabulary knowledge in English-Meetei Mayek biliterates | Gairan Pamei, Catherine McBride, Tomohiro Inoue | <p>The objective of the current study is to examine the association between word reading and vocabulary knowledge in English and Meetei Mayek. The target sample (N = 354) is children in Grades 3 and 4 attending schools in Manipur, the average age ... | Social sciences | Moin Syed | 2023-04-15 14:16:14 | |||
28 Dec 2021
STAGE 1
Sight vs. sound in the judgment of music performance: Cross-cultural evidence from classical piano and Tsugaru shamisen competitionsUnderstanding the role of visual and auditory information in evaluating musical performanceRecommended by Yuki Yamada based on reviews by David Hughes and Kyoshiro Sasaki
In this Stage 1 Registered Report, Chiba and colleagues (2021) aim to investigate how people use information from visual and auditory modalities when evaluating musical performances. Previous studies, mainly using Western music, have reported a visual dominance, but this has not yet been clearly and consistently reported. Thus, the authors propose to evaluate both the reproducibility and generalizability of the previous findings by conducting a replication study using the methodology of the previous studies and by introducing a new experimental condition in which the Tsugaru-shamisen, a unique Japanese musical instrument, is also performed. This study could represent an important turning point in the research context of performance evaluation and would be of considerable value. This manuscript was peer-reviewed by two experts in scientific methodology and Japanese traditional music, respectively, and during the two-round peer-review process they made a number of important points, but eventually awarded the manuscript a highly positive response. I am therefore pleased to recommend that this Stage 1 Registered Report meets our Stage 1 criteria and is worthy of in-principle acceptance. I look forward to seeing the results and discussion reported in Stage 2, with the expectation that the experiment conducted by the authors will be in strict accordance with this protocol. *The following is a very minor comment, which I hope the authors will find helpful in the future. Of course, this is not related to hypothesis construction and does not require revision: The "Blind Audition" study cited in the introduction is very impactful, but has recently been called into question, so I am at least a little cautious when citing this study. This article may be useful. https://www.wsj.com/articles/blind-spots-in-the-blind-audition-study-11571599303 URL to the preregistered Stage 1 protocol: https://osf.io/ry2b6 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
| Sight vs. sound in the judgment of music performance: Cross-cultural evidence from classical piano and Tsugaru shamisen competitions | Gakuto Chiba, Yuto Ozaki, Shinya Fujii, Patrick E. Savage | <p style="text-align: justify;">Which information dominates in evaluating performance in music? Both experts and laypeople consistently report believing that sound should be the most important domain when judging music competitions, but experime... | | Social sciences | Yuki Yamada | Kyoshiro Sasaki | 2021-09-24 08:59:26 | |
Sight vs. sound judgments of music performance depend on relative performer quality: Cross-cultural evidence from classical piano and Tsugaru shamisen competitions [Stage 2 Registered Report]Music is appreciated cross-modally, but is culture- and context-dependentRecommended by Yuki Yamada based on reviews by Kyoshiro Sasaki and 1 anonymous reviewer
Music is not merely limited to the aural experience we garner through our auditory faculties, as commonly perceived. Rather, various studies have explored the cross-modal impact of visual stimuli on the evaluation of music. These previous studies have been confined exclusively to Western music. Hence, Chiba et al. (2023) designed a study with a focus on the Tsugaru shamisen, a renowned folk instrument indigenous to Japan, and of which the first author is an outstanding player.
The study methodology was an improved version of previous endeavors, wherein actual musical material sourced from concours performances was displayed through audio-only, video-only or both modalities. A sample of Japanese participants were then asked to evaluate the concours performances on both the piano and the Tsugaru shamisen. The results, obtained through pre-registered protocols, revealed that for both concours performances, the participants displayed a cross-modal impact of visual information on their aural evaluation of music. This effect was also found to be contingent on cultural and contextual factors. These outcomes furnish valuable evidence towards the generalizability of the interplay between sight and sound in the assessment of music. The study underwent rigorous peer-review processes in both Stage 1 and Stage 2, with three experts specializing in Japanese folk music, open science, and statistics, respectively, providing their critical assessments. Following multiple rounds of revision, the final manuscript was deemed fit for recommendation.
URL to the preregistered Stage 1 protocol: https://osf.io/ry2b6
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
Chiba G., Ozaki Y., Fujii S., & Savage P.E. (2023). Sight vs. sound judgments of music performance depend on relative performer quality: Cross-cultural evidence from classical piano and Tsugaru shamisen competitions [Stage 2 Registered Report]. Acceptance of Version 2 by Peer Community in Registered Reports. https://doi.org/10.31234/osf.io/xky4j
| Sight vs. sound judgments of music performance depend on relative performer quality: Cross-cultural evidence from classical piano and Tsugaru shamisen competitions [Stage 2 Registered Report] | Gakuto Chiba, Yuto Ozaki, Shinya Fujii, Patrick E. Savage | <p>Which information dominates in evaluating performance in music? Both experts and laypeople consistently report believing that sound should be the most important domain when judging music competitions, but experimental studies of Western partici... |  | Social sciences | Yuki Yamada | 2022-11-30 08:04:37 | ||
05 Jun 2024
STAGE 1
Dose-response of tDCS effects on motor learning and cortical excitability: a preregistered studyHow stimulation intensity affects motor learningRecommended by Christina Artemenko based on reviews by Charlotte Wiltshire and 1 anonymous reviewer
In neurostimulation research, the parameters of a stimulation protocol crucially impact on the effects of the stimulation. Transcranial direct current stimulation (tDCS) is a neurostimulation technique that typically uses current intensities about 1-2 mA in human research to modulate motor and cognitive behavior. The current sham-controlled study by Hsu et al. (2024) applies current intensities not only of 2 mA but also of 4 mA and 6 mA and thus extends our understanding of stimulation parameters while ethical standards are preserved.
The influence of tDCS over the primary motor cortex will be evaluated for neural plasticity during motor learning. Stimulation effects will be tested not only behaviorally but also physiologically by motor evoked potentials elicited by transcranial magnetic stimulation (TMS). The presented pilot data are promising and underline the feasibility of the proposed research design. The study will contribute to tDCS research by uncovering reasons for controversial findings and thus increase reproducibility.
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/jyuev
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. List of eligible PCI RR-friendly journals: References
Hsu, G., Edwards, D. J., Cohen, L. G., & Parra, L. C. (2024). Dose-response of tDCS effects on motor learning and cortical excitability: a preregistered study. In principle acceptance of Version 1.3 by Peer Community in Registered Reports. https://osf.io/jyuev
| Dose-response of tDCS effects on motor learning and cortical excitability: a preregistered study | Gavin Hsu, Dylan J. Edwards, Leonardo G. Cohen, Lucas C. Parra | <p>Neuromodulatory effects of transcranial direct current stimulation (tDCS) on the primary motor cortex (M1) have been reported in terms of changes in corticospinal excitability using motor evoked potentials (MEPs), as well as behavioral effects ... | | Engineering, Life Sciences | Christina Artemenko | 2024-01-11 00:11:23 | ||
08 Feb 2022
STAGE 1
Arithmetic deficits in Parkinson's Disease? A registered reportGetting the numbers right in Parkinson's disease?Recommended by Zoltan Dienes based on reviews by Pia Rotshtein, Ann Dowker, Stephanie Rossit and 1 anonymous reviewer
Everyday life, including for patients taking different types of medicine, involves dealing with numbers. Even though Parkinson's disease may ordinarily be thought of as primarily being a motor disorder, there is evidence that numerical abilities decline as Parkinson's disease progresses. Further, the brain areas involved in arithmetic operations overlap with the areas that degenerate in Parkinson's disease. In this Stage 1 Registered Report, Loenneker et al. (2022) will test healthy controls, Parkinson disease patients with normal cognition, and Parkinson disease patients with mild cognitive impairment on general working memory tasks as well as arithmetic performance on the four basic operations (addition, subtraction, multiplication, division). The study aims to test whether or not there is a deficit in each operation, and the relation of any deficits to general working memory capacity. The Stage 1 manuscript was evaluated over four rounds of review (including two rounds of in-depth specialist review). Based on comprehensive 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/nb5fj 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 Loenneker, H. D., Liepelt-Scarfone, I., Willmes, K., Nuerk, H.-C., & Artemenko, C. (2022). Arithmetic deficits in Parkinson’s Disease? A Registered Report. Stage 1 preregistration, in principle acceptance of version 4 by Peer Community in Registered Reports. https://osf.io/nb5fj | Arithmetic deficits in Parkinson's Disease? A registered report | Hannah D. Loenneker, Inga Liepelt-Scarfone, Klaus Willmes, Hans-Christoph Nuerk, & Christina Artemenko | <p>Elderly people and patients with neurodegenerative diseases such as Parkinson’s Disease (PD) immensely rely on arithmetic skills to lead an independent life. Activities such as medication management, financial transactions or using public trans... | | Life Sciences | Zoltan Dienes | 2021-06-29 19:23:53 |
