Distinctive nonlinear dimensionality of neural spiking activity in extrastriate cortex during spatial working memory; a Higuchi fractal analysis

Working memory serves as a basis for many cognitive functions, including attention, decision-making, and learning. When engaged, it is often associated with an increase in the average neural firing rates across different sensory sensorimotor regions of brain. However, modulation rate extrastriate cortex, involved visual processing, has never been reported during maintenance information. Here, first time, we show that despite absence neurons middle temporal cortex (part cortex), their nonlinear dimensionality, captured by Higuchi method, increased when locus spatial working corresponds neurons' receptive field. Our finding sheds more light on mechanisms would help diagnosis processes disorders are thought to be rooted malfunctioning memory. It also calls attention toward need novel approaches studying activities beyond discharge rate. • not represented area MT. Fractal Dimension measures complexity signal through time. Temporal MT responses increases period.