Andrei N. Serkov

Learn More
BACKGROUND GPS analysis of flight trajectories of pigeons can reveal that topographic features influence their flight paths. Recording electrical brain activity that reflects attentional processing could indicate objects of interest that do not cause changes in the flight path. Therefore, we investigated whether crossing particular visual landmarks when(More)
The interaction (synchronization) of activity of the medial prefrontal cortex, hippocampus and basolateral amygdala have been studied in the course of performance of conditioned avoidance reflex. The pre-stimulus expectation period was characterized by low-frequency delta-activity (1-4 Hz) with the source (according to criteria of Granger causality) in the(More)
To study the neurophysiology of large-scale spatial cognition, we analyzed the neuronal activity of navigating homing pigeons. This is not possible using conventional radio-telemetry suitable for short distances only. Therefore we developed a miniaturized data logger ("neurologger") that can be carried by a homing pigeon on its back, in conjunction with a(More)
206 words Text body: 5617 words Figure text: 967 words References: 32 Figures: 9 Table: 1 Articles in PresS. J Neurophysiol (October 19, 2005). doi:10.1152/jn.00879.2005 Copyright © 2005 by the American Physiological Society. ABSTRACT In order to study the neurophysiology of large-scale spatial cognition, we analyzed the neuronal activity of navigating(More)
Long-term potentiation of monosynaptic projections from the ventral hippocampus to the medial prefrontal cortex was accompanied by increases in the power and synchronization of the θ rhythm in the cortex and hippocampus. Independently of changes in the power, increases in synchronization in the θ and δ ranges were seen with minimal expression of the θ(More)
Execution of a conditioned avoidance reflex in rats was associated with the disappearance of the δ rhythm (1–4 Hz) typical of the intersignal period and synchronized between the medial prefrontal cortex and the ventral tegmental area of the midbrain (VTA), and with an increase in the frequency of the synchronized θ rhythm in the same structures and the(More)
The interaction between the medial prefrontal cortex, the ventral hippocampus, and the basolateral amygdala was studied during execution of a conditioned avoidance reflex. Slow δ activity at 1–4 Hz was recorded during the prestimulus period, with a source meeting the “Granger causality” criterion located in the prefrontal cortex, along with a θ rhythm at(More)
The prestimulus expectation period of conditioned avoidance reflex features synchronized Δ-rhythm (1-4 Hz) in the medial prefrontal cortex and the ventral tegmental area (VTA), and synchronized θ-rhythm (6-8 Hz) in the above-mentioned structures and the hippocampus. According to "Granger causality" Δ- and θ-rhythms flow (are predictors) in the direction(More)
Alexei L. Vyssotski, Andrei N. Serkov, Pavel M. Itskov, Giacomo Dell’Omo, Alexander V. Latanov, David P. Wolfer, and Hans-Peter Lipp Institute of Anatomy, Division of Neuroanatomy and Behavior, University of Zürich, Zurich, Switzerland; Chair of Higher Nervous System Activity, Faculty of Biology, Moscow State University and P. K. Anokhin’s Institute of(More)