![]() ![]() Somatosensory deficits after stroke are a major health problem, which can impair patients' health status and quality of life. For display purposes, the control and adaptation trials were grouped. C, The raster plot represents the spike times of one V4 neuron responding to the adapting and test stimuli in the control (blue) and adaptation (red) conditions. The horizontal lines mark the 300 ms time windows during which the adapting and test stimuli were presented. Each set of lines represents the average response across all trials and test orientations in each condition (the adapting orientation is 45°). The raw signal is low-pass filtered at 300 Hz, and the DC component is removed. B, Example of LFP responses at one recording site in control (blue) and adaptation (red). After a 100 ms blank, the adapting stimulus was followed by a 300 ms test stimulus of random orientation. ![]() After 300 ms of fixation, an adapting stimulus was presented for 300 ms as a random dot patch (control condition) or a sine-wave grating of fixed orientation (adaptation condition). A, Schematic description of the orientation adaptation protocol. ![]()
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