Distinct timescales of population coding across cortex.

Piasini E., Runyan C.A., Panzeri S., Harvey C.D.
  Martedì 12/09   09:00 - 13:00   Aula A209   V - Biofisica e fisica medica
The brain represents and processes information across widely varying timescales. For instance, sensory stimuli may fluctuate over milliseconds, but perceptual tasks can require the maintenance of sensory information over seconds. Using tools from statistical learning, information theory and Bayesian inference, we developed a method to assess the timescales of sensory and decision-related neural representations, and their connection to the statistical structure of neural codes. We applied this method to experimental recordings of neural activity from behaving mice, revealing that coordinated activity in populations of neurons can be essential to achieve long and diverse coding timescales across cortical areas.