S. V. Afanas’ev

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Putamen neuron spike activity associated with motor and nonmotor functions was studied in monkeys trained to behavioral programs consisting of a series of sequential actions. In general, each putamen neuron was activated during particular behavior fragments. The association of each individual neostriatal neuron with particular behavioral fragments was not(More)
Two types of neuron spike activity were detected in the striatum (putamen) of monkeys: patterns with low and high activity. Low-activity patterns were no more than twice the level of baseline activity, while high-activity patterns had larger factors. An individual neuron could generate different patterns during different actions. On performance of tasks(More)
The behavior of rats was studied in a two-ring maze in which the animal could make its own choice of one of two trajectories of the same length, independently returning to the start point. All maze sectors – starting chamber, signal sector, arm, and feeding sector – were separated by one-way doors. The time structure of passage through the maze sectors(More)
The single unit activity of the monkey parietal cortex was studied during the task of alternative spatial selection. Simultaneously activities of 6--10 neurons were recorded. It was revealed that tonic impulse activity of parietal cortex neurons forms blocks. The structure of blocks reflects the structure of behavioral task and related to the achievement of(More)
Neck muscles play important role in body schema perception, pose and motor control. The mechanical neck muscles stimulation can influence these processes. On present investigation the kinesiology tape (KT) application was used as a local mechanical stimulation for M. sternocleidomastoideus. The results confirmed the influence of the KT application on the(More)
Animal behavior is studied using a two-ring maze in which the animal has to choose one of two paths, the same length and then self-returning to the starting compartment. All sections of the labyrinth: the starting chamber, signal space, arms and food compartment blocked by one-way doors. Time periods of passing different chambers reflect different aspects(More)
At present there is widely spread concept of populational coding of information by brain neurons; it is based first of all on results of comparison of neuronal activity with parameters of the used stimulus. Relation between the neuronal activity coding and the observed behavioral actions has been practically not studied. In the present work, neuronal(More)
Spike activity related to the problem of alternative choice of behavioral actions was recorded in the putamen of the monkey brain. The patterns of low and high activities were identified. Each neuron during different behaviour actions could generate any kind of patterns. The differences between neuronal compositions with patterns of high activity, at the(More)
The dynamics of tonic neuron activity of the putamen and prefrontal cortex of monkey's brain is researched by studying sequential stages of executive behavior program. It is determined that tonic responses in both structures are classified in separate blocks. The blocks are timed to key moments of behavior connected with intermediate goals framed by a(More)