Cascades of neuronal plasticity in the macaque visual cortex
Koyano, K. W.; Esch, E. M.; Hong, J. J.; Waidmann, E. N.; Leopold, D. A.
Show abstract
Primates readily learn new visual objects, with neurons in the inferior temporal cortex exhibiting diminished visual responses to familiar stimuli. The mechanisms of visual plasticity expressed within a neural population are largely unknown. Here we used chronic microwire electrodes in a face-selective cortical area in the macaque to longitudinally track cohorts of neurons across several weeks of exposure to novel faces. Neurons showed gradual adaptation in their late-phase visual responses, with cell-specific time constants ranging from two to twenty days. These time constants were governed by the number of testing days rather than by the cumulative number of stimulus exposures. This gradual buildup of altered visual responses may serve as an internal and graded mark of stimulus familiarity, a central component of visual recognition.
Matching journals
The top 5 journals account for 50% of the predicted probability mass.
Similar papers in this journal
- Causal adaptation to visual input dynamics governs the development of complex cells in V1 97%
- Brain-machine interface learning is facilitated by specific patterning of distributed cortical feedback 96%
- Orbitofrontal Cortex Influences Dopamine Dynamics Associated with Alloparental Behavioral Acquisition in Female Mice 96%
Similar papers in this journal
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.