Alterations in subjective experience, including alterations in the sense of agency (SoA) and reality (SoR), are commonly implicated in direct-verbal suggestions, such as hypnotic suggestions. Although extensively studied, how direct-verbal suggestions can alter the SoA and SoR is not understood (e.g., see Martin & Pacherie, 2019; Zahedi et al., 2024). One class of theories postulates that the alterations in SoA and SoR are related to meta-cognition. For instance, the intention to move or form a mental image can be kept out of conscious awareness, creating a sense of involuntariness (Dienes & Perner, 2007).

Relying on this theory, in the current study Sheldrake and Dienes (2024) postulate that the metacognitive processes related to these alterations can occur by appropriate use of imagination. In other words, by imagining the movement or object to be hallucinated and further imagining the underlying process was outside of awareness, one can elicit alterations in SoA and SoR. To this end, an intervention is devised whereby the participant is repeatedly asked to consider what might help or hinder them from imagining they are unaware of the relevant intention and thereby adjust their imagination. A control group will be asked to increase the feeling of involuntariness or altered reality simply by repeated practice. Afterward, participants will be asked in a test phase the extent to which the suggested experience felt involuntary.

 

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/f8hsd
 
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
• Experimental Psychology
• Journal of Cognition
• Peer Community Journal
• PeerJ
• Psychology of Consciousness: Theory, Research, and Practice
• Royal Society Open Science
• Studia Psychologica
• Swiss Psychology Open

 

1. Dienes, Z. & Perner, J. (2007). Executive control without conscious awareness: The cold control theory of hypnosis. In G. A. Jamieson (Ed.), Hypnosis and conscious states: The cognitive neuroscience perspective (pp. 293-314). Oxford University Press.

 

2. Martin, J. R. & Pacherie, E. (2019). Alterations of agency in hypnosis: A new predictive coding model. Psychol Rev, 126(1), 133-152. https://doi.org/10.1037/rev0000134

 

3. Sheldrake, K. & Dienes, Z. (2043). Can Imagining Actions as Occurring Involuntarily Cause Intentional Behaviour to Feel Involuntary? In principle acceptance of Version 6 by Peer Community in Registered Reports. https://osf.io/f8hsd

 

4. Zahedi, A., Lynn, S. J., & Sommer, W. (2024). Cognitive Simulation along with Neural Adaptation Explain Effects of Suggestions: A Novel Theoretical Framework. Frontiers in Psychology. https://doi.org/10.3389/fpsyg.2024.1388347

In interpersonal evaluation, the amount of information available about the other person has a significant impact. Norton et al. (2007) conducted systematic experiments suggesting a 'less is more' effect – that a lack of information leads to a more positive evaluation. However, subsequent studies have not always reached the same conclusion.

 

In the current study, Horsham et al. (2024) aim to address this issue by conducting direct and conceptual replications of the Norton et al. (2007) experiments, as well as additional extensive experiments focusing on the effects of curiosity. The authors seek to confirm in a reliable way the relationship between ambiguity and liking, and even to clarify the factors that mediate this relationship. The results should significantly advance our understanding of the importance of information management in interpersonal relationships.

 

The Stage 1 manuscript was peer-reviewed by two experts; after four rounds of review and based on their revisions and detailed responses to the reviewers' comments, the recommender judged that the manuscript met the Stage 1 criteria and awarded it in-principle acceptance (IPA).

 

URL to the preregistered Stage 1 protocol: https://osf.io/7mc4y
 
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:
 

 

 

1. Norton, M. I., Frost, J. H., & Ariely, D. (2007). Less is more: The lure of ambiguity, or why familiarity breeds contempt. Journal of Personality and Social Psychology, 92, 97-105. https://doi.org/10.1037/0022-3514.92.1.97

 

2. Horsham, Z., Haydock-Symonds, A., Imada, H., Tai, H. C., Lau, W. L., Shum, T. L., Zeng, Y., Chow, H. T., & Feldman, G., (2024). Does learning more about others impact liking them? Replication and extension Registered Report of Norton et al. (2007)’s Lure of Ambiguity. In principle acceptance of Version 4 by Peer Community in Registered Reports. https://osf.io/7mc4y