The incidence rate of different hippocampal anatomical variants in healthy population was specified in the study. In our study we have analyzed MRI data of mediobasal parts of temporal lobes in healthy volunteers based on literature review and our own experience. Besides, hippocampal formation, being complex structure, consists of different parts, including subregions (head, body and tail) and subfields (СА1-СА4, subiculum, presubiculum, dentate gyrus), which changes depend on different psychological and psychiatric symptoms. Different anatomical variants of these structures were described in literature indistinctly, often leading to misinterpretation of neuroimaging findings. This can be explained by the insufficient knowledge of normal volume and linear measurements of brain structures responsible for human emotional and cognitive functioning including different age periods. However, obtained results are often contradictory. Nowadays the question of limbic structures involvement in different types of brain pathology is much debated in literature. MR anatomy, anatomical variants and morphometry of hippocampal formation. Petersburg, 199034, Russian Federationįor citation: Ananyeva N. Petersburg, 192019, Russian Federationħ-9, Universitetskaya nab., St. Bekhterev National Medical Research Center for Psychiatry and Neurology (V. But hippocampal fissure become smaller in elder ages because of atrophic changes. In our research we found out certain significant differences in hippocampus fissure volumes, parasubiculum, molecular layer of dentate gyrus, fimbria, СА3 and СА4 Brodmann areas, demonstrating that in adulthood morphofunctional connections are not finally formed, that's why volumes of molecular layers CA1-CA3 smaller in adulthood than in elder population. We have also determined MR voxel-based morphometry as a method permitting to define and evaluate volumes of different hippocampal subfields. Most of the actual information processing in the brain takes place in the cerebral cortex.Аннотация научной статьи по клинической медицине, автор научной работы - Ananyeva Natalia I., Andreev Evgeniy V., Akhmerova Linara R., Salomatina Tatiana A., Wasserman Ludvig I. The telencephalon contains the largest part of the brain, the cerebrum. The diencephalon contains structures such as the thalamus and hypothalamus which are responsible for such functions as motor control, relaying sensory information, and controlling autonomic functions. There are two major divisions of forebrain: the diencephalon and the telencephalon. The forebrain is the division of the brain that is responsible for a variety of functions including receiving and processing sensory information, thinking, perceiving, producing and understanding language, and controlling motor function. Both the midbrain and the hindbrain make up the brainstem.The hindbrain is associated with balance and equilibrium and the coordination of movement along with autonomic functions like our breathing and our heart rate.
It is associated with motor functions and auditory and visual responses.
0 kommentar(er)
