Some quantitative measures of structural asymmetry in fields 41 and 22 of the human auditory cortex.

The aim of the present work was to perform a quantitative study of the cytoarchitectonic features of cortical fields 41 and 22 in the left and right hemispheres of the human brain. Studies addressed frontal sections of the brains of 10 subjects (right-handers) aged 29-59 years, stained with cresyl violet by the Nissl method; sections were 20 microm thick. The following quantitative parameters were measured: volume of field, thickness of cortex, and neuron field profile area.

[Quantitative parameters of structural asymmetry of auditory cortex area 41 and 21 in the human brain].

The aim of this work was to give a quantitative characteristic of cytoarchitectonic peculiarities of cortical areas 41 and 22 in the left and right hemispheres of human brain. 20 mm thick frontal brain sections of 10 right-handed adult persons aged 29-59 stained by Nissl's crezyl-violet method were studied. The following quantitative parameters determined included area volume, cortical thickness and neuron profile area.

[Peculiarities of the structure of the speech-motor cortex of the brain frontal lobe in a deaf-mute child].

The aim of present investigation was the study of the cytoarchitecture of the motor-speech areas 44 and 45 of the brain cortex of a 4-year-old deaf-mute child. We have also compared cytoarchitecture of the motor-speech zone of the brain cortex in a deaf-mute child with the same brain region in a normal child of a similar age. Series of 20 mm-thick frontal sections stained with cresyl violet were studied using morphometric methods.