Spatial modulation of dark versus bright stimulus responses in the mouse visual system
Bilal Haider’s lab at Georgia Tech used NeuroNexus 32-channel probes with linear and poly3 layouts to record neural activity across layers of V1 and LGN, respectively, in head-fixed stationary mice. Their results showed that OFF responses dominated in the central visual field, whereas ON and OFF responses were more balanced in the periphery. These findings were consistent across LFP, spikes, and subthreshold membrane potential in V1, and were aligned with spatial biases in ON and OFF responses in LGN.
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