Inhibition failures and late errors in the antisaccade task: influence of cue delay

Area of Science:

• Cognitive Neuroscience
• Computational Neuroscience
• Psychology

Background:

• The antisaccade task is crucial for studying response inhibition and voluntary action control.
• Variations in antisaccade task design may influence the underlying cognitive processes investigated.
• Understanding these variations is key to accurately interpreting task performance.

Purpose of the Study:

• To investigate how the delay between a task cue and a peripheral visual cue (PVC) affects reaction time (RT) and error rate (ER) in a mixed antisaccade task.
• To compare a condition with an early task cue versus a condition where the PVC also serves as the task cue.
• To evaluate the performance of the Stochastic Early Reaction, Inhibition, and late Action (SERIA) model in explaining observed behavioral patterns.

Main Methods:

• Utilized a mixed antisaccade task with randomly interleaved pro- and antisaccade trials.
• Contrasted two conditions: one with an early task cue preceding the PVC, and another where the PVC acted as the task cue.
• Applied the SERIA computational model to analyze reaction times and error rates.

Main Results:

• Early task cue presentation led to reduced ERs and RTs, minimizing contextual effects.
• The SERIA model provided a superior account of RT and ER compared to other models.
• Voluntary pro- and antisaccades were frequent in both conditions; early cues enhanced control over reflexive saccades.

Conclusions:

• The SERIA model successfully explains behavioral differences between delayed and non-delayed antisaccade tasks.
• Early task cue presentation improves performance by enhancing voluntary control and reducing reflexive errors.
• The study highlights the prevalence of high-latency errors and the significant role of voluntary actions in antisaccade tasks.