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Adaptive whitening with fast gain modulation and slow synaptic plasticity
Lyndon R. Duong, Eero P. Simoncelli, Dmitri B. Chklovskii +1
Neurons in early sensory areas rapidly adapt to changing sensory statistics, both by normalizing the variance of their individual responses and by reducing correlations between the…
Adaptive coding efficiency in recurrent cortical circuits via gain control
Lyndon R. Duong, Colin Bredenberg, David J. Heeger +1
Sensory systems across all modalities and species exhibit adaptation to continuously changing input statistics. Individual neurons have been shown to modulate their response gains…
Adaptive whitening in neural populations with gain-modulating interneurons
Lyndon R. Duong, David Lipshutz, David J. Heeger +2
Statistical whitening transformations play a fundamental role in many computational systems, and may also play an important role in biological sensory systems. Existing neural circ…
Neural and perceptual signatures of efficient sensory coding
Deep Ganguli, Eero P. Simoncelli
The mammalian brain is a metabolically expensive device, and evolutionary pressures have presumably driven it to make productive use of its resources. For sensory areas, this conce…
Direct Estimation of Firing Rates from Calcium Imaging Data
Elad Ganmor, Michael Krumin, Luigi F. Rossi +2
Two-photon imaging of calcium indicators allows simultaneous recording of responses of hundreds of neurons over hours and even days, but provides a relatively indirect measure of t…
A model of sensory neural responses in the presence of unknown modulatory inputs
Neil C. Rabinowitz, Robbe L. T. Goris, Johannes Ballé +1
Neural responses are highly variable, and some portion of this variability arises from fluctuations in modulatory factors that alter their gain, such as adaptation, attention, arou…