Institute Structure >> Scientific departments >> Laboratory ╣8|
LABORATORY ╣ 8
Sensory information processing
Head of the laboratory – Doctor of sciences (biol.) Varvara Yu. Vedenina
Tel: +7(495) 952-33-03
In 1963, a laboratory of transmission and processing of information in sensory organs (lab ╣8) was founded in the Institute for Information Transmission Problems of the Soviet Union’s academy of sciences. This laboratory has been originated from the laboratory of the biophysics of vision (Institute of biophysics). The heads of the laboratory ╣8: Nikolay Njuberg (1963-1967), Mikhail Bongard (1967-1971), Alexey Byzov (1971-1998), Vladimir Bastakov (1998-2013).
In the lab, we investigate the mechanisms of the sensory information processing in animals and humans at various levels: at the level of receptors, at the level of central nervous system, at the level of realization of behavioral programs.
The main topics are mentioned below.
The studies of information transmission in visual systems
We study 1) detectors of movement in fishes (silver Prussian carp) in retina and tectum; 2) color vision in animals. In particular, we study an influence of illumination of the receptive field periphery on response of the movement detectors in the fish retina during a selective and combined excitation of the different receptor types. We also investigate functions of contrast sensitivity, simultaneous color contrast, constant color perception in detectors of movement direction and detectors of oriented lines (E. Maximova, P. Maximov, I. Damjanovic, A. Aliper, A. Kasparson).
We study the coding mechanisms of the vision scene depth in anurans. In particular, we try to elucidate how the frog vision system can evaluate external stimulus and trigger either feeding behaviour or avoidance behaviour. We also have a task to develop a model of neural network, which allows perceiving 3D space. We also investigate morphology of retina in animals with day and night mode of life. In particular, we study a tiny structure of the retinal pigment epithelium and phenomenon of the natural photoprotection in animals occurring under the high illumination conditions. We study the mechanisms of color coding in the frog vision system (V. Bastakov, O. Orlov)
We develop the new treatment methods of amblyopia and other visual disturbances in children. In particular, we develop a model of visual screening, which allows detecting visual disturbances in children; we also develop a complex of diagnostic procedures to evaluate visual disturbances; we also examine the methods of developing of the visual functions and corrections of visual disturbances inhibiting successful learning (T. Podugolnikova).
The studies of information transmission in auditory systems
In the lab, we study bioacoustics of sanguivorous mosquitoes. In particular, we are interested in functioning of the mosquito auditory system under the conditions of flight. We also study the frequency and spatial characteristics of the auditory receptors in mosquitoes, and try to reveal an importance of acoustic signals in females, and their behaviour during acoustic testing (D. Lapshin).
We investigate bioacoustics in Orthoptera (crickets and grasshoppers) and Heteroptera (stick bugs). The main task of investigations is the study of evolution of acoustic and vibration signals in context of speciation. In particular, we study the role of various courtship parameters during the mate choice in behavioural experiments (V. Vedenina, L. Schestacov).
The studies of chemical communication
In the lab, we investigate the capabilities of the macrosmatic animals to distinguish the odor-markers of oncologic diseases and metabolites of other diseases (associated with bleeding, inflammation, infection and necrosis, immune response of an organism). We develop the methods of marker identification at the early levels of the tumor development (E. Rodionova, M. Kochevalina).
The studies of the neurophysiologic mechanisms of interoceptive information transmission and analysis
We study a hypothesis according to which all cortex zones analyzing exteroceptive information during the wake phase switch to an analysis of interoceptive information during sleep. We analyze interoceptive information transmission in spinal cord during the cycle sleep-wake, and reflection of the signals coming from gastrointestinal tract and heart in the single neuron activity of cortex and basal structures in the periods of slow-wave and fast sleep (I. Pigarev, V. Lavrova, E. Levichkina).
Subjects for students:
Vision and visual behaviour
- A study of detectors of movement in fishes (silver Prussian carp) in retina and tectum. What temporal resolution capability do the movement detectors have? Methods: electrophysiology, registration of the neuron activity in retina and tectum. Tutor: Elena Maximova, email@example.com
- A study of the coding mechanisms of the vision scene depth in anurans. How the frog vision system can evaluate external stimulus and trigger either feeding behaviour or avoidance behaviour? Methods: behavioural experiments, electrophysiology. Tutor: Vladimir Bastakov firstname.lastname@example.org
- A study of the retina morphology in animals with day and night mode of life. Can the retinal structure evidence about adaptation to one or another habitat? Tutor: Oleg Orlov email@example.com
- Electrophysiological and behavioural experiments of color vision in frogs and toads? Tutors: Vladimir Bastakov firstname.lastname@example.org; Oleg Orlov email@example.com
Audition and acoustic communication
- Bioacoustics of sanguivorous mosquitoes. How does the mosquito auditory system function under the conditions of flight? Methods: electrophysiology, acoustic testing of mosquitoes under natural conditions, distant methods of control. Tutor: Dmitry Lapshin firstname.lastname@example.org
- A study of the role of various courtship parameters during the mate choice in Orthoptera (crickets, grasshoppers) and Heteroptera (stick bugs). Methods: behavioural experiments, video-taping, song recordings and analysis. Tutors: Varvara Vedenina email@example.com, Leo Schestacov firstname.lastname@example.org
- A study of the individual odor codes in humans and animals and their role in various forms of behaviour (e.g. in mate choice). Developing the methods of the odor-marker use for early diagnostics of oncologic diseases. Methods: using of mouse models of transplantable tumor, inflammation, immune response; behavioural experiments, presentation of the sick animal samples to dogs. Tutor: Elena Rodionova email@example.com
- A study of a function of sleep. Checking a hypothesis according to which all cortex zones analyzing exteroceptive information during the wake phase switch to an analysis of interoceptive information (from gastrointestinal, cardiovascular systems, etc.) during sleep. Methods: registration of the single neuron activity and the local slow potentials in different cortex zones, basal ganglia and structures of the spinal cord during the transitions from the sleep to wake phase and backwards. Tutor: Ivan Pigarev firstname.lastname@example.org