scholarly journals CYTOARCHITECTONICS OF THE CORTEX OF AREA 7 OF THE UPPER PARIETAL REGION OF THE BRAIN OF THE SCIENTIST-INVENTOR

2020 ◽  
pp. 5-10
Author(s):  
P.A. Agapov ◽  
I.N. Bogolepova
Keyword(s):  
Parietal Region ◽  
Area 7 ◽  
The Brain

scholarly journals Cytoarchitectonics of the Superior Parietal Cortex of an Outstanding Russian Scientist-Physiologist

2021 ◽  
Vol 10 (3) ◽  
pp. 9-14
Author(s):  
P. A. Agapov ◽  
I. N. Bogolepova
Keyword(s):  
Cognitive Activity ◽  
Brain Slices ◽  
Control Group ◽  
Parietal Region ◽  
Age Related ◽  
Area 7 ◽  
Cortex Area ◽  
The Brain ◽  
Satellite Glia ◽  
Profile Field

The aim of the study is to identify possible cytoarchitectonic features of the structure of the cortex in the superior parietal region of an outstanding and talented scientist-physiologist.Material and methods. The cortex (area 7) of the superior parietal region of a scientist-physiologist and men of the senile age in the control group (8 hemispheres) was studied on the series of frontal brain slices, 20 μ thick, stained with cresyl purple according to Nissl method. The cortex area thickness, the thickness of the cytoarchitectonics layer III, the area of profile field of pyramidal neurons in layers III and V, the density of neurons surrounded by satellite glia and satellite glia density in layers III and V were measured in the cortex (area 7) of the superior parietal region in the left and right hemispheres of the brain.Results. We have identified several features of the cytoarchitectonics structure of the cortex (area 7) in the brain of the scientist-physiologist that may correlate with his outstanding scientific abilities. The cortex of a scientist-physiologist is characterized by a large thickness of the studied cortex and its cytoarchitectonic layers III and V, and a greater value of the area of the profile field of neurons if compared with the cortex in men of the senile age from the control group. A higher value of the neuron density and satellite glia in the cortex of the superior parietal region of the scientist-physiologist was revealed. There was also a lower severity of age-related changes in the cortex of the scientist-physiologist compared with the control group of men.Conclusion. The structure of the cortex (area 7) of the superior parietal region of the scientistphysiologist is characterized by a greater parameter of the cortical thickness and the thickness of the associative layer III, the size of neurons and the density of satellite glia if compared with those in men of the senile age of the control group. These features distinguish the structure of his cortex from the similar cortex of the control group of men and may be related to the features of the cognitive activity of the outstanding scientist-physiologist.

scholarly journals Recurrent Malignant Fibrous Histiocytoma in the Left Parietal Region of Cranium: A Case Report

1970 ◽  
Vol 17 (1) ◽  
pp. 55-56
Author(s):  
ML Rahman ◽  
ASM Shawkat Ali
Keyword(s):  
Malignant Fibrous Histiocytoma ◽  
Fibrous Histiocytoma ◽  
Brain Parenchyma ◽  
Parietal Region ◽  
Skull Bone ◽  
Previous Surgery ◽  
History Of ◽  
One Year ◽  
The Brain ◽  
Space Occupying Lesion

A male of 20 years of age presented with features of intracranial space occupying lesion of cranium involving the brain. He came with the history of previous surgery in the head one-year back. On operation, an osteolytic growth from the skull bone invading the meninges and brain parenchyma. Who found Histopathological report revealed malignant fibrous histiocytoma.   doi: 10.3329/taj.v17i1.3492 TAJ 2004; 17(1) : 55-56

scholarly journals The effect of fatigue on brain connectivity networks

2020 ◽  
Vol 6 (2) ◽  
pp. 120-131
Author(s):  
Shangen Zhang ◽  
Jingnan Sun ◽  
Xiaorong Gao
Keyword(s):  
Functional Connectivity ◽  
Normal State ◽  
Brain Connectivity ◽  
Memory Task ◽  
Visual Presentation ◽  
Mental States ◽  
Parietal Region ◽  
Brain Response ◽  
Brain Functional Connectivity ◽  
The Brain

In the fatigue state, the neural response characteristics of the brain might be different from those in the normal state. Brain functional connectivity analysis is an effective tool for distinguishing between different brain states. For example, comparative studies on the brain functional connectivity have the potential to reveal the functional differences in different mental states. The purpose of this study was to explore the relationship between human mental states and brain control abilities by analyzing the effect of fatigue on the brain response connectivity. In particular, the phase‐scrambling method was used to generate images with two noise levels, while the N‐back working memory task was used to induce the fatigue state in subjects. The paradigm of rapid serial visual presentation (RSVP) was used to present visual stimuli. The analysis of brain connections in the normal and fatigue states was conducted using the open‐source eConnectome toolbox. The results demonstrated that the control areas of neural responses were mainly distributed in the parietal region in both the normal and fatigue states. Compared to the normal state, the brain connectivity power in the parietal region was significantly weakened under the fatigue state, which indicates that the control ability of the brain is reduced in the fatigue state.

Case of Metastasis of Alveolar Soft Part Sarcoma Lower Limb To Brain Diagnosed on Squash Cytology

JMS SKIMS ◽  
2017 ◽  
Vol 20 (2) ◽  
pp. 108
Author(s):  
Sumat Ul Khurshid ◽  
Iqbal Lone ◽  
Imza Feroz ◽  
Wajahat Mir
Keyword(s):  
Lower Limb ◽  
Soft Part ◽  
Low Density ◽  
Parietal Region ◽  
Limb Weakness ◽  
Left Lower Limb ◽  
History Of ◽  
One Year ◽  
The Brain ◽  
Space Occupying Lesion

A 19‑year‑old male patient was admitted, after experiencing occasional headaches during the previous 6 months. The patient's headaches had become progressively more severe 1 month prior to admis­sion to hospital, and were associated with right upper limb weakness. As revealed by cranial computed tomog­raphy, a high‑density lesion was observed in the left parietal region [CT values, 52 Houns field units, (HU)] and a peripheral low‑density edematous zone was visible.(figure a) . The medical history of the patient included an indolent 4x4 cm subcutaneous iliac mass in the left lower limb from last one year, which the patient had neglected. Therefore, the patient was diagnosed as space occupying lesion brain. During surgery, a purplish‑red tumor was observed in the brain. Intraoperative crush cytology was asked for. JMS 2017;20(2):108

Brain Activities in a Skilled versus a Novice Artist: An fMRI Study

Leonardo ◽  
2001 ◽  
Vol 34 (1) ◽  
pp. 31-34 ◽  
Author(s):  
Robert L. Solso
Keyword(s):  
Blood Flow ◽  
Parietal Region ◽  
Facial Information ◽  
Fmri Study ◽  
Magnetic Reso ◽  
Posterior Parietal ◽  
Motor Movements ◽  
The Right ◽  
A Site ◽  
The Brain

Functional Magnetic Reso-nance Imaging (fMRI) scans of a skilled portrait artist and of a non-artist were made as each drew a series of faces. There was a dis-cernible increase in blood flow in the right-posterior parietal region of the brain for both the artist and non-artist during the task, a site normally associated with facial per-ception and processing. However, the level of activation appeared lower in the expert than in the nov-ice, suggesting that a skilled artist may process facial information more efficiently. In addition, the skilled artist showed greater acti-vation in the right frontal area of the brain than did the novice, which the author posits indicates that such an artist uses “higher-or-der” cognitive functions, such as the formation of associations and planning motor movements, when viewing and drawing a face.

Case Study

2014 ◽  
Vol 4 (3) ◽  
pp. 27-30
Author(s):  
Akash Shrikhande ◽  
Thierry Galvez ◽  
Nicolas Langendorfer ◽  
Krishna Jain ◽  
Rakesh Biswas
Keyword(s):  
Experiential Learning ◽  
Clinical Course ◽  
Parietal Region ◽  
Lower Zone ◽  
Left Thalamus ◽  
The Right ◽  
Contrast Ct ◽  
Supportive Management ◽  
The Brain

The authors discuss the clinical complexities surrounding an 85-year-old male complaining of left sided weakness for one month, along with cough and fever for 20 days. Findings on non-contrast CT scan of the brain showed an acute-on-chronic infarct in the right parietal region, in the territory of the right middle cerebral artery, with lacunar infarct in the left thalamus. A chest radiograph showed a heterogeneous opacity in the right lower zone, and air bronchogram with an elevated right dome of the diaphragm. The patient was diagnosed to have suffered a stroke with a subsequent right-sided pneumonia due to diaphragmatic palsy. The patient was put on ventilator and further supportive management was instituted. This article presents the clinical course of the case and the experiential learning associated with it.

scholarly journals Neuroimaging in stroke and non-stroke pusher patients

2011 ◽  
Vol 69 (6) ◽  
pp. 914-919 ◽  
Author(s):  
Taiza Elaine Grespan Santos-Pontelli ◽  
Octavio Marques Pontes-Neto ◽  
Draulio Barros de Araujo ◽  
Antonio Carlos dos Santos ◽  
João Pereira Leite
Keyword(s):  
Stroke Volume ◽  
Postural Control ◽  
Recovery Time ◽  
Hemorrhagic Stroke ◽  
Parietal Region ◽  
Vascular Territory ◽  
Midline Shift ◽  
The Brain ◽  
Neurological Unit

Pusher behavior (PB) is a disorder of postural control affecting patients with encephalic lesions. This study has aimed to identify the brain substrates that are critical for the occurrence of PB, to analyze the influence of the midline shift (MS) and hemorrhagic stroke volume (HSV) on the severity and prognosis of the PB. We identified 31 pusher patients of a neurological unit, mean age 67.4±11.89, 61.3% male. Additional neurological and functional examinations were assessed. Neuroimaging workup included measurement of the MS, the HSV in patients with hemorrhagic stroke, the analysis of the vascular territory, etiology and side of the lesion. Lesions in the parietal region (p=0.041) and thalamus (p=0.001) were significantly more frequent in PB patients. Neither the MS nor the HSV were correlated with the PB severity or recovery time.

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