Ekaterina Levichkina

Dynamics of coherent activity between cortical areas defines a two-stage process of top-down attention

E Levichkina, M Kermani, YB Saalmann, TR Vidyasagar

Journal article  |  2021  |  EXPERIMENTAL BRAIN RESEARCH

Analysing a visual scene requires the brain to briefly keep in memory potentially relevant items of that scene and then direct att..

The Mysterious Island: Insula and Its Dual Function in Sleep and Wakefulness

Ekaterina V Levichkina, Irina I Busygina, Marina L Pigareva, Ivan N Pigarev

Journal article  |  2021  |  FRONTIERS IN SYSTEMS NEUROSCIENCE

In the recent sleep studies, it was shown that afferentation of many cortical areas switches during sleep to the interoceptive one..

Complex Visceral Coupling During Central Sleep Apnea in Cats

Alexandra V Limanskaya, Irina I Busygina, Ekaterina V Levichkina, Ivan N Pigarev

Journal article  |  2020  |  FRONTIERS IN NEUROSCIENCE

Central sleep apnea is a sudden arrest of breathing during sleep caused by the central commands to the thoracoabdominal muscles. I..

Probable Mechanism of Antiepileptic Effect of the Vagus Nerve Stimulation in the Context of the Recent Results in Sleep Research

Ivan N Pigarev, Marina L Pigareva, Ekaterina V Levichkina

Journal article  |  2020  |  FRONTIERS IN NEUROSCIENCE

Diversity of Feature Selectivity in Macaque Visual Cortex Arising from a Limited Number of Broadly Tuned Input Channels

Yamni S Mohan, Jaikishan Jayakumar, Errol KJ Lloyd, Ekaterina Levichkina, Trichur R Vidyasagar

Journal article  |  2019  |  CEREBRAL CORTEX

Spike (action potential) responses of most primary visual cortical cells in the macaque are sharply tuned for the orientation of a..

An Integrated Neuronal Model of Claustral Function in Timing the Synchrony Between Cortical Areas

Trichur R Vidyasagar, Ekaterina Levichkina

Journal article  |  2019  |  FRONTIERS IN NEURAL CIRCUITS

It has been suggested that the function of the claustrum (CL) may be to orchestrate and integrate the activity of the different co..

Diversity of feature selectivity in macaque visual cortex arising from limited number of broadly-tuned input channels

Yamni Mohan, Jaikishan Jayakumar, Errol KJ Lloyd, Ekaterina Levichkina, Trichur Vidyasagar

Journal article  |  2018

Spikes (action potential) responses of most primary visual cortical cells in the macaque are sharply tuned for the orientation of ..

Coding of spatial attention priorities and object features in the macaque lateral intraparietal cortex

Ekaterina Levichkina, Yuri B Saalmann, Trichur R Vidyasagar

Journal article  |  2017  |  PHYSIOLOGICAL REPORTS

Primate posterior parietal cortex (PPC) is known to be involved in controlling spatial attention. Neurons in one part of the PPC, ..

Absolute Depth Sensitivity in Cat Primary Visual Cortex under Natural Viewing Conditions

Ivan N Pigarev, Ekaterina V Levichkina

Journal article  |  2016  |  FRONTIERS IN SYSTEMS NEUROSCIENCE

Mechanisms of 3D perception, investigated in many laboratories, have defined depth either relative to the fixation plane or to oth..

Subcortical orientation biases explain orientation selectivity of visual cortical cells

Trichur R Vidyasagar, Jaikishan Jayakumar, Errol Lloyd, Ekaterina V Levichkina

Journal article  |  2015  |  PHYSIOLOGICAL REPORTS

The primary visual cortex of carnivores and primates shows an orderly progression of domains of neurons that are selective to a pa..