Context effect in a temporal bisection task with the choice keys available during the sample.

Area of Science:

• * Cognitive Psychology
• * Animal Behavior
• * Behavioral Neuroscience

Background:

• * Understanding temporal perception in animals is crucial for modeling cognitive processes.
• * Previous studies on temporal discrimination often limited stimulus availability during sample presentation.
• * Scalar Expectancy Theory (SET) and Learning-to-Time (LeT) are prominent models for explaining interval timing.

Purpose of the Study:

• * To investigate how pigeons (Columba livia) learn and represent temporal intervals.
• * To examine the role of stimulus availability during sample presentation in temporal discrimination.
• * To test the predictive power of SET and LeT models using novel comparison stimuli.

Main Methods:

• * A symbolic matching-to-sample task was employed with six pigeons.
• * Pigeons associated different sample durations (3s, 9s, 27s) with specific comparison stimuli (Red, Green, Blue, Yellow keylights).
• * Comparison stimuli were presented during sample durations, and preferences were assessed in novel pairings.

Main Results:

• * Pigeons successfully learned to discriminate between different sample durations.
• * Preference for the Green keylight increased during the sample interval, aligning with LeT predictions.
• * Neither SET nor LeT fully predicted all observed preferences in novel stimulus pairings.

Conclusions:

• * The findings suggest that pigeons' temporal discriminations are influenced by factors not fully captured by current timing models.
• * The results provide evidence supporting the Learning-to-Time model in specific aspects of temporal generalization.
• * Further refinement of timing models is needed to account for complex temporal perception phenomena in animals.