Delusional thinking and action binding in healthy individuals.

Area of Science:

• Cognitive Psychology
• Neuroscience
• Psychopathology

Background:

• Action binding describes the temporal distortion of actions towards their feedback.
• Schizophrenia patients exhibit a larger action binding effect, potentially linked to positive symptoms like delusions.

Purpose of the Study:

• To investigate the relationship between delusional thinking and action binding in healthy individuals.
• To test the hypothesis of a positive correlation between delusional ideation and action binding.

Main Methods:

• Action binding was measured by comparing perceived keypress timing in operant (keypress with sound) versus baseline (keypress alone) conditions.
• A novel, highly precise subjective timing measurement method was employed.
• The Peters et al. delusions inventory (21-item) assessed delusional thinking tendencies.

Main Results:

• A significant positive correlation was found between delusional thinking scores and the action binding effect.
• This correlation remained significant after controlling for the order of testing conditions.

Conclusions:

• Delusional thinking specifically impacts the perception of action timing in healthy individuals.
• Findings support a continuous model of schizotypal traits, bridging healthy individuals and clinical schizophrenia patients.