Predictable events elicit less visual and temporal information uptake in an oddball paradigm

Area of Science:

• Cognitive psychology
• Neuroscience
• Perception

Background:

• The visual oddball paradigm shows surprising stimuli can appear longer than expected.
• It's debated whether this is due to surprising stimuli expanding or repeated stimuli contracting.
• This ambiguity impacts our understanding of temporal perception.

Purpose of the Study:

• To determine if predictable stimuli contract apparent duration.
• To investigate how predictability affects visual information uptake.
• To relate findings to the predictive coding framework.

Main Methods:

• A non-relative duration reproduction task was employed.
• Participants reproduced stimulus durations after several standards.
• Predictability of test stimuli was manipulated across presentations.

Main Results:

• Predictable stimuli led to a contraction of apparent duration.
• Less visual information was processed for predictable stimuli.
• Experiments 1, 3, and 4 supported duration contraction.

Conclusions:

• Predictable stimuli appear to contract in apparent duration.
• Predictability reduces visual information uptake.
• Findings align with predictive coding models of perception.