As virtual reality environments become more common, it is important to understand our sensorimotor interactions with them. In real world settings, sensory information is supplemented by prior expectations from past experiences, aiding efficient action control. In VR, the relative role of expectations could decrease due to a lack of prior experience with the environment, or increase because sensory information is impoverished or ambiguous. Harris, Arthur and Buckingham (2024) propose to test these possibilities by comparing a real-world object lifting task and a VR version in which the same objects are lifted but visual feedback is substituted by a virtual view. The experiment uses the Size-Weight Illusion (SWI) and the Material Weight Illusion (MWI). In these paradigms, the visual appearance of the object induces expectations about weight that can affect the perception of weight during lifting, and the fingertip forces generated. The degree to which the visual appearance of objects induces differences in perceived weight, and in measured fingertip forces, will index the influence of prior expectations for these two paradigms. The analyses will test whether the influence of prior expectations is lower or higher in the VR set-up than in real-world lifting. The outcomes across tasks (SWI and MWI) and measures (perceived weight, fingertip forces) will broaden our understanding of the role of predictive sensorimotor control in novel virtual environments.

 

After three rounds of evaluation, with input from two external reviewers, the recommender judged that the Stage 1 manuscript met the criteria for in-principle acceptance (IPA).

 

 
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:

 

• Advances in Cognitive Psychology
• Collabra: Psychology
• Communications in Kinesiology
• Experimental Psychology
• In&Vertebrates
• Journal of Cognition
• Peer Community Journal
• PeerJ
• Psychology of Consciousness: Theory, Research, and Practice
• Royal Society Open Science
• Studia Psychologica
• Swiss Psychology Open

 
References

 

1. Harris, D. J., Arthur, T., & Buckingham, G. (2024). Does ‘virtuality’ affect the role of prior expectations in perception and action? Comparing predictive grip and lifting forces in real and virtual environments. In principle acceptance of Version 4 by Peer Community in Registered Reports. https://osf.io/36jhb

 

Even small changes in daily life can have a significant impact on one’s health, for example going to the gym at regular times and eating a healthy breakfast. But how long must we do something before it becomes a habit? Lally et al. (2010) tracked the subjective automaticity of a novel, daily (eating or exercise-related) routine. Based on 39 participants, they found a median time of 66 days. This estimate has never been replicated with their exact procedure, so the question remains of how well this holds up. Yet the estimate is useful for knowing how long we have to effortfully make ourselves perform an action until we will do it automatically.

 

In the current study, de Wit et al. (2023) propose a four-centre near-exact replication of Lally et al. (2010), for which they aim to test 800 subjects to provide a precise estimate of the time it takes to form a habit.

 

The Stage 1 manuscript was evaluated over four rounds of 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/bj9r2

 

Level of bias control achieved: Level 4. At least some of the data/evidence that will be used to answer the research question already exists AND is accessible in principle to the authors (e.g. residing in a public database or with a colleague), BUT the authors certify that they have not yet accessed any part of that data/evidence.

 

 

 

1. Lally, P., van Jaarsveld, C. H. M., Potts, H. W. W., & Wardle, J. (2010). How are habits formed: Modelling habit formation in the real world. European Journal of Social Psychology, 40, 998–1009. https://doi.org/10.1002/ejsp.674

 

2. de Wit, S., Bieleke, M., Fletcher, P. C., Horstmann, A., Schüler, J., Brinkhof, L. P., Gunschera, L. J., AND Murre, J. M. J. (2023). How long does it take to form a habit?: A Multi-Centre Replication, in principle acceptance of Version 4 by Peer Community in Registered Reports. https://osf.io/bj9r2

The relationship between music and exercise has been studied for over a century, with implications for our understanding of biomechanics, physiology, brain function, and psychology. Listening to music while exercising is associated with a wide range of benefits, from increasing motivation, to reducing perceived exertion, inhibiting awareness of negative bodily signals, boosting mood, and ultimately improving physical performance. But while these ergogenic benefits of music are well documented, much remains to be discovered about how music alters brain function during exercise. One reason for this gap in understanding is the technical difficulty in recording brain activity during realistic exercise, as neuroimaging methods such as fMRI, EEG or MEG typically require participants to remain as still as possible.

 

In the current study, Guérin et al. (2023) will use the optical brain imaging technique of functional near infrared spectroscopy (fNIRS) to measure oxygenation of key brain areas during exercise. Unlike other neuroimaging methods, fNIRS has a high tolerance for motion artefacts, making it the ideal method of choice for the current investigation. The authors propose a series of hypotheses based on previous studies that observed a decrease in cerebral oxygenation during intense exercise, particularly within the medial prefrontal cortex (mPFC) and dorsolateral prefrontal cortex (dlPFC). If, as suggested, the prefrontal cortex is important for regulation of cognition and emotion during exercise, then the benefits of listening to music might arise by delaying or reducing this drop in prefrontal oxygenation.

 

Using a within-subject designs, Guérin et al. will combine an incremental exercise protocol involving a cycling task with three auditory conditions: asynchronous music (the active condition), listening to an audiobook (an auditory control) or silence (baseline control). Compared to the two control conditions, they predict that music exposure will increase oxygenation in prefrontal and parietal regions and will also delay the drop in oxygenation associated with intense exercise (specifically within dlPFC and mPFC). To test whether any such changes are specific for prefrontal and parietal cortex, they will also compare the haemodynamic responses of the occipital cortex between the auditory conditions, predicting no difference.

 

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/52aeb
 
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:
 

Visual symmetry is critical to our interaction with our environment so that when detected, symmetry automatically produces a neural marker in the form of an Event Related Potential (ERP) called Sustained Posterior Negativity (SPN). However, when symmetry is presented to the visual system slanted away from the viewer, there is a reduction in SPN, termed a perspective cost. 

 

Considering ​objects are rarely presented front-on (or frontoparallel) in our natural environment, Karakashevska et al., (2023) plan to examine the extent of the perspective cost with the addition of visual cues to facilitate extraretinal representation of the visual symmetry. The authors will record electroencephalography (EEG) from 120 participants while they perform a luminance task on symmetrical and asymmetrical stimuli. The authors hypothesize perspective cost will be reduced by three perspective cues: 1) monocular viewing, when cue conflict caused by binocular viewing is eliminated, 2) a static frame surrounding the symmetrical stimulus, adding a depth cue, and 3) a moving frame, assisting 3D perception prior to the symmetry onset. If the SPN is equivalent during frontoparallel and slanted presentation in a cue condition, the authors will conclude extraretinal representation can be automatic when sufficient visual cues are available. The proposed experiment is powered to detect a relatively small difference between perspective cue conditions. This will solidify fundamental research on visual symmetry processing and will further our understanding of object perception and recognition. 

 

The Stage 1 manuscript was evaluated over three rounds by four expert reviewers. Following in-depth review and responses from the authors, the recommenders have determined that Stage 1 criteria was met and have awarded in-principle acceptance (IPA). 

URL to the preregistered Stage 1 protocol: https://osf.io/yzsq5
 
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:
 

• Advances in Cognitive Psychology
• Brain and Neuroscience Advances
• Cortex
• F1000Research
• Imaging Neuroscience
• In&Vertebrates
• NeuroImage: Reports
• Peer Community Journal
• PeerJ
• Royal Society Open Science
• Studia Psychologica
• Swiss Psychology Open

 
References
 
1. Karakashevska, E., Bertamini, M. & Makin, A. D. J. (2023). Putting things into perspective: Which visual cues facilitate automatic extraretinal symmetry representation? [Stage 1 Registered Report]. In principle acceptance of Version 4 by Peer Community in Registered Reports. https://osf.io/yzsq5

​Karakashevska and colleagues (2024) aim to examine the extraretinal representation of visual symmetry presented in a virtual reality environment. Previous research had demonstrated that individuals can detect symmetry when the symmetry is represented on a perspective plane, slanted away from the viewer. In electroencephalography (EEG), perceived symmetry is marked by an Event Related Potential (ERP) called a Sustained Posterior Negativity (SPN). When symmetry is presented on a perspective plane in comparison to front-on (frontoparallel), the SPN is reduced, termed the perspective cost. Here, Karakashevska et al., (2024) will determine if presenting symmetry on a perspective plane in a virtual reality (VR) environment will reduce the perspective cost with the addition of 3D depth cues. Specifically, participants will be requested to detect symmetry or luminance of a stimulus presented in a VR environment whilst wearing an EEG. The authors hypothesize that no perspective cost will be identified between symmetry presented on a frontoparallel plane versus symmetry on a perspective plane. Furthermore, the authors will examine the impact of task within the virtual environment on symmetry processing. They hypothesize that a task focused on the regularity of the stimuli will result in a larger amplitude of the SPN than a luminance task. This design enables the authors to pinpoint immersive environments as providing cues critical in overcoming perspective cost.

 

The Stage 1 manuscript was evaluated by two expert reviewers across three rounds. Following in-depth review and responses from the authors, the recommender has determined that Stage 1 criteria was met and has awarded in-principle acceptance (IPA).

 

URL to the preregistered Stage 1 protocol: https://osf.io/7pnxu
 
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:

 

 

Karakashevska, E., Batterley, M. & Makin, A. D. J. (2024). They look virtually the same: extraretinal representation of symmetry in virtual reality. In principle acceptance of Version 3 by Peer Community in Registered Reports. https://osf.io/7pnxu