Functional MRI signal changes in the central nervous system in response to psychoemotional stress

Zashezova M.Kh., Shariya M.A., Ustyuzhanin D.V., Ternovoy S.K., Belkind M.B.

Functional magnetic resonance imaging (fMRI) is an important research tool, which is widely used to study the regional activity patterns of the cerebral cortex in response to a variety of tasks. Also fMRI can be used to study the brain activation, associated with cognitive and emotional processing. Some types of tasks, typically evoking pain, anxiety, elicit reactive changes in autonomic and humoral state that can be used as experimental challenges for studying stress.

1 - Federal establishment “Cardiology research center” Ministry of Health of Russian Federation 2 - I.M. Sechenov First Moscow State Medical University. Moscow, Russia.

 

 

 

 

 

 

 

 

 

Purpose. FMRI usage in studying the regional activity patterns of the cerebral cortex in response to a variety of tasks. Materials and methods. A total of 34 male volunteers were included to the study. Electric tactile stimulus was used as stress generator. While performing fMRI two zones of significant activity were revealed: in the left insula hemisphere and in the area of precentral gyrus cortex of right hemisphere. Сonclusion. Functional imaging studies of experimental challenges provide insight into brain mechanisms mediating psychoemotional stress responses.

 

Keywords: functional magnetic resonance imaging, neurovascular interaction, BOLD-contrast, psychoemotional stress.

 

Corresponding author: Zashezova M.Kh., Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript

 

For citation: : Zashezova M.Kh., Shariya M.A., Ustyuzhanin D.V., Ternovoy S.K., Belkind M.B. Functional mri signal changes in the central nervous system in re-sponse to psychoemotional stress. REJR. 2017; 7 (1):-. DOI:10.21569/2222-7415-2016-6-2-91-96.

Received: 09.02.2017 Accepted: 27.02.2017