Confidence ill stimulus predictions and choice reaction time

Area of Science:

• Cognitive Psychology
• Human Performance
• Decision Making

Background:

• Reaction time (RT) is a fundamental measure in cognitive psychology.
• Understanding factors influencing RT, such as prediction and confidence, is crucial for cognitive modeling.
• Previous research has explored prediction effects on RT, but the role of confidence judgment requires further elucidation.

Purpose of the Study:

• To investigate the relationship between stimulus prediction confidence and choice reaction time (RT).
• To examine how the source of confidence judgments (self vs. experimenter) affects this relationship.
• To determine if the validity of confidence estimates influences RT to non-predicted stimuli.

Main Methods:

• Two choice reaction time (RT) experiments were conducted.
• Participants made stimulus predictions and confidence judgments before stimulus presentation.
• Stimulus identification was performed by pressing designated keys; experimental conditions varied prediction/confidence source and validity.

Main Results:

• RT to correctly predicted stimuli decreased as prediction confidence increased.
• RT to incorrectly predicted stimuli was influenced by confidence, particularly when experimenter-provided.
• Choice RT to non-predicted stimuli was inversely related to confidence when experimenter confidence was valid, but unaffected when random.

Conclusions:

• Confidence in stimulus predictions significantly modulates reaction time.
• The source and validity of confidence judgments play a critical role in the confidence-RT relationship.
• These findings have implications for understanding decision-making processes and cognitive control.