Performance Monitoring during Visual Priming

Area of Science:

• Neuroscience
• Cognitive Science
• Psychology

Background:

• Repetitive performance in visual search tasks, known as priming of pop-out, enhances reaction times and accuracy.
• Priming of pop-out has been observed in both human and non-human primate studies.
• The supplementary eye field (SEF) is implicated in performance monitoring and generating electroencephalography (EEG) signals related to it.

Purpose of the Study:

• To investigate the relationship between performance monitoring and priming of pop-out.
• To determine if priming of pop-out relies on performance monitoring mechanisms.
• To explore the neural correlates of performance monitoring during priming of pop-out using simultaneous electrophysiological recordings.

Main Methods:

• Recorded neuronal spiking activity in the supplementary eye field (SEF) of two macaque monkeys.
• Simultaneously recorded electroencephalography (EEG) from the monkeys during a priming of pop-out task.
• Analyzed SEF spiking activity and EEG signals in relation to priming effects.

Main Results:

• Supplementary eye field (SEF) neuronal spiking activity did not show modulation related to priming of pop-out.
• Concurrent electroencephalography (EEG) signals covaried with priming of pop-out.
• A dissociation was observed between SEF spiking and EEG activity concerning priming.

Conclusions:

• Performance monitoring appears to contribute to priming of pop-out.
• The supplementary eye field (SEF) may not be the primary neural mediator for the performance monitoring involved in priming of pop-out.
• Electroencephalography (EEG) indices of performance monitoring likely originate from multiple, functionally distinct neural generators, not solely the SEF.