Microstimulating one anterolateral belt site biases monkeys’ pitch reports

Evidence

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…, 4878

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…, 4885

Categorization

• FICTION: The notion that stimulating a single tuned cortical site shifts a perceptual report evokes thought experiments about implant-driven perception.
• corroborated: 2 independent passages support this claim — Dijk, Pim van, Physiology, Psychoacoustics and…, 4878; Dijk, Pim van, Physiology, Psychoacoustics and…, 4885