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Personality and intentional binding: an exploratory study using the narcissistic personality inventory
Ann Chen Hascalovitz1, Sukhvinder S Obhi2
1Department of Physiology, Development and Neuroscience, Behavioural and Clinical Neuroscience Institute, University of Cambridge Cambridge, UK.
Individuals with higher narcissism scores exhibit greater intentional binding, a phenomenon where the perceived time between an action and its effect is shortened. Lower narcissism scores correlated with reduced intentional binding, highlighting personality
Area of Science:
- Cognitive Psychology
- Personality Psychology
- Neuroscience
Background:
- Intentional binding describes the subjective shortening of the perceived time between a voluntary action and its consequence.
- This phenomenon is linked to the sense of agency, but individual differences, particularly in personality traits like narcissism, have not been extensively studied.
- Narcissism is characterized by an inflated self-view and a strong sense of agency, while lower narcissism may be associated with a reduced sense of agency.
Purpose of the Study:
- To investigate the relationship between scores on the Narcissistic Personality Inventory (NPI) and the magnitude of intentional binding.
- To explore whether individual differences in narcissism influence the phenomenological experience of action and its perceived timing.
Main Methods:
- Participants were categorized into high, middle, and low NPI score groups.
- The study compared the perceived timing of voluntary actions and their subsequent auditory effects (tones) across these groups.
- Intentional binding was quantified by measuring the temporal discrepancies in action and effect perception.
Main Results:
- Participants with middle and high NPI scores demonstrated significantly greater intentional binding compared to those with low NPI scores.
- The degree of intentional binding was comparable between the middle and high narcissism groups.
- These findings suggest a link between narcissism levels and the experience of intentional binding.
Conclusions:
- This study provides the first evidence that personality traits, specifically narcissism, are associated with variations in intentional binding.
- The results underscore the importance of considering individual differences in personality when studying volition and the sense of agency.
- Intentional binding appears to be modulated by an individual's level of narcissism and their subjective experience of agency.
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