User profiles for Alexei A. Koulakov
Alexei KoulakovCold Spring Harbor Laboratory Verified email at cshl.edu Cited by 6055 |
Maps in the brain: what can we learn from them?
DB Chklovskii, AA Koulakov - Annu. Rev. Neurosci., 2004 - annualreviews.org
▪ Abstract In mammalian visual cortex, neurons are organized according to their functional
properties into multiple maps such as retinotopic, ocular dominance, orientation preference, …
properties into multiple maps such as retinotopic, ocular dominance, orientation preference, …
Precise olfactory responses tile the sniff cycle
In terrestrial vertebrates, sniffing controls odorant access to receptors, and therefore sets the
timescale of olfactory stimuli. We found that odorants evoked precisely sniff-locked activity in …
timescale of olfactory stimuli. We found that odorants evoked precisely sniff-locked activity in …
Model for a robust neural integrator
AA Koulakov, S Raghavachari, A Kepecs… - Nature …, 2002 - nature.com
Integrator circuits in the brain show persistent firing that reflects the sum of previous excitatory
and inhibitory inputs from external sources. Integrator circuits have been implicated in …
and inhibitory inputs from external sources. Integrator circuits have been implicated in …
[PDF][PDF] Orbitofrontal cortex is required for optimal waiting based on decision confidence
Confidence judgments are a central example of metacognition—knowledge about one's
own cognitive processes. According to this metacognitive view, confidence reports are …
own cognitive processes. According to this metacognitive view, confidence reports are …
[PDF][PDF] Orientation preference patterns in mammalian visual cortex: a wire length minimization approach
AA Koulakov, DB Chklovskii - Neuron, 2001 - cell.com
In the visual cortex of many mammals, orientation preference changes smoothly along the
cortical surface, with the exception of singularities such as pinwheels and fractures. The …
cortical surface, with the exception of singularities such as pinwheels and fractures. The …
[HTML][HTML] A primacy code for odor identity
CD Wilson, GO Serrano, AA Koulakov… - Nature …, 2017 - nature.com
Humans can identify visual objects independently of view angle and lighting, words
independently of volume and pitch, and smells independently of concentration. The computational …
independently of volume and pitch, and smells independently of concentration. The computational …
High-throughput sequencing of single neuron projections reveals spatial organization in the olfactory cortex
In most sensory modalities, neuronal connectivity reflects behaviorally relevant stimulus
features, such as spatial location, orientation, and sound frequency. By contrast, the prevailing …
features, such as spatial location, orientation, and sound frequency. By contrast, the prevailing …
[PDF][PDF] Sparse incomplete representations: a potential role of olfactory granule cells
AA Koulakov, D Rinberg - Neuron, 2011 - cell.com
Mitral/tufted cells of the olfactory bulb receive odorant information from receptor neurons and
transmit this information to the cortex. Studies in awake behaving animals have found that …
transmit this information to the cortex. Studies in awake behaving animals have found that …
Correlated connectivity and the distribution of firing rates in the neocortex
AA Koulakov, T Hromádka, AM Zador - Journal of Neuroscience, 2009 - Soc Neuroscience
Two recent experimental observations pose a challenge to many cortical models. First, the
activity in the auditory cortex is sparse, and firing rates can be described by a lognormal …
activity in the auditory cortex is sparse, and firing rates can be described by a lognormal …
Competition is a driving force in topographic mapping
…, AM Litke, A Sher, AA Koulakov… - Proceedings of the …, 2011 - National Acad Sciences
Topographic maps are the primary means of relaying spatial information in the brain.
Understanding the mechanisms by which they form has been a goal of experimental and …
Understanding the mechanisms by which they form has been a goal of experimental and …