AL belt neurons encode auditory evidence that drives perceptual decisions

Evidence

Do neurons in the different belt regions contribute differentially to auditory perception? The preliminary findings from our low-high pitch study suggest that AL neurons, but not ML neurons, might represent the sensory information (evidence) used to inform the monkeys’ perceptual decisions. Specifically, AL neurometric sensitivity appeared to be correlated with both psychometric sensitivity and the monkeys’ choices. Consistent with these findings, AL may play a causal role in these auditory judgments: microstimulation of an AL site tends to shift the monkeys’ reports toward the pitch associated with the site’s frequency tuning. — Dijk, Pim van, Physiology, Psychoacoustics and…, 4890

Categorization

• corroborated: 2 independent passages support this claim — Dijk, Pim van, Physiology, Psychoacoustics and…, 4890