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September 10, 2025Open Access

Stimulus-Dependent Theta Rhythmic Activity in Primate V1 Predicts Visual Detection

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Observational analysis shows theta oscillations predict visual detection in macaques, suggesting sensory processing roles for V1.

Theta oscillations in the primary visual cortex predict visual detection efficacy in macaques, enhancing perceptual timing.
Monkeys' reaction times during visual tasks showed rhythmic fluctuations at the theta frequency of V1 neural activity.
Carefully optimized stimuli size and contrast were essential in inducing robust theta oscillations in macaque V1 during detection tasks.
These findings highlight the significance of theta rhythmic activity in the primary visual cortex for sensory processing and performance.

Fanyiwi et al. (2025) studied this question.

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