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Biomedical subjects

B A Karpov

Publications and source records attributed to B A Karpov.

14 recordsLinked to original sources
PubMed1990

[Study of disorders of speech and thinking in schizophrenia by recording eye movements during reading].

Eye movements (EM) were recorded during reading in 16 patients with continuous schizophrenia of long (9 to 35 years) standing. EM in patients were found to differ materially from those in normals. Two pathological forms (strategies) of successive text review were revealed. As far as the first strategy is concerned, it is characterized by the predominance of disorganization of perceptive motor reading automatism. As to the second one, the reading automatism is on the whole retained but demonstrates the signs of stereotypy, loss of motivation to realization of the operations of control and adequate adaptive rearrangement. It is concluded that speech and thinking disorders formed as a result of long schizophrenia are pathogenetically non-uniform and reflect nonspecific regularities of psychotic responsiveness.

Adult↗
PubMed1975

[Eye movement disorders in visual agnosia].

By the aid of photooptical methods the authors studied eye movements in 6 patients with disorders of visual gnosis due to focal lesions in the occipitallbrain lobes. The examination included studies of a fixation of immovable objects, a tracing of linear and pendulum moving objects and a voluntary change of points of fixation in space. It was demonstrated that expressed symptoms of agnosia are accompanied by defects in the organization of all forms of opticomotor activity. The authors discuss problems of the pathogenesis of oculomotor disorders in optical agnosia.

Agnosia↗