Attention and schema violations of real world scenes differentially modulate time perception

Area of Science:

• Cognitive psychology
• Neuroscience
• Perception

Background:

• Object arrangement in real-world scenes follows semantic and syntactic rules.
• Violations of semantic rules can lead to overestimation of scene duration.
• The differential impact of semantic versus syntactic violations on timing, and the role of attention, remain underexplored.

Purpose of the Study:

• To investigate if both semantic and syntactic scene violations affect interval timing.
• To determine if attention mediates the influence of scene violations on timing perception.
• To compare the effects of semantic and syntactic violations on time perception.

Main Methods:

• Utilized an oddball paradigm with real-world scenes containing semantic and/or syntactic violations.
• Conducted two experiments to assess time perception under different violation conditions.
• Manipulated target object contrast in the second experiment to probe attentional effects.

Main Results:

• Syntactic violations resulted in time dilation (overestimation).
• Semantic violations led to time compression (underestimation).
• Increased target contrast enhanced duration overestimation for both semantic and syntactic violations.

Conclusions:

• Scene violations differentially impact interval timing based on processing differences.
• Attentional mechanisms, modulated by factors like target contrast, play a role in how scene violations affect time perception.