Brain parietal lobe

Compared to the Category Test, SSP and SRT results show a relatively mixed performance profile. This profile is indicative of temporal lobe impairment and may explain the idiosyncratic character of PCP-induced brain dysfunction. Other HRB subtest data suggest that parietal lobe-mediated functions are less influenced by PCP abuse, since approximately 30 percent of this sample had error-free performances on a test sensitive to finger agnosia. 

Named for the bones of the cranium under which they lie, the lobes are conspicuously defined by prominent sulci of the cortex, which have a relatively constant position in human brains. Each lobe is specialized for different activities (see Figure 6.3). Located in the anterior portions of the hemispheres, the frontal lobes are responsible for voluntary motor activity, speaking ability, and higher intellectual activities. The parietal lobes, which are posterior to the frontal lobes, process and integrate sensory information. The occipital lobes, located in the posterior-most aspects of the cerebrum, process visual information, and the temporal lobes, located laterally, process auditory information. 

Mehta, M.A., Owen, A.M., Sahaklan, B.J., Mavaddat, N., Pickard, J.D., and Robbins, T.W. (2000) Methylphenldate enhances working memory by modulating discrete frontal and parietal lobe regions in the human brain. / Neurosci 20 RC651-RC656. 

The parietal lobes are responsible for integrating the sensory input from touch, taste, smell, etc. The complex organization of this section of the brain allows us to recognize patterns in our experience, maintain physical orientation and stability, and perform more intricate intellectual tasks such as math and chemistry. 

In summary, multiple fines of evidence have implicated the frontal and parietal lobes in the dysfunction of deficit symptoms. Most evidence implicates the dorsolateral prefrontal cortex and the inferior parietal cortex. Other brain areas of interest are the thalamus and caudate. There are indications that this... 

Neuronal loss is a pathognomonic finding in AD and the final common path of multiple pathogenic mechanisms leading to neurodegeneration in dementia. Atrophy of the medial temporal lobe, especially the hippocampus and the parahippocampal gyrus, is considered to be the most predictive structural brain biomarker for AD. The medial and posterior parts of the parietal lobe seem to be preferentially affected, compared to the other parietal lobe parts [19]. 

Anterior Cingulate Gyrus. C Frontal Lobe. D Parietal Lobe. E occipital Lobe (primary visual cortex), f Temporal Lobe most of this area of the cortex is on the outside of the far side of the brain, hidden in this view. G Cerebellum. H Thalamus. Encircling the Thalamus are the Hippocampus, the Amygdala, the Basal Ganglia and other parts of the limbic system. l Pons. 3 Midbrain, area in which are found the various brain stem nuclei including the Raphe Nuclei, the Locus Coeruleus, the Substantia Nigra, etc. K Medulla. 

The back portion of the human cerebrum, comprised by the parietal (P), temporal (T), and occipital (O) lobes, is the sensuous portion of our brain. It is devoted to processing all the sights, sounds, smells, tastes, and touch-based sensations that we consciously experience. It connects those experiences to each other and with our memories and emotions. So thank your parietal lobes for being able to feel the hands of your masseur (or masseuse), your occipital lobes for seeing him, and your temporal lobes for hearing his voice. 

The brain is divided into several areas that specialize in different functions. Some of the major sections of the brain are the frontal lobe, the parietal lobe, the temporal lobe, the pons, the medulla oblongata, the occipital lobe, and the cerebellum. The spinal cord connects the brain to the body via millions of nerves that transmit information between the brain and the rest of the body. 

Your parietal lobe controls your speech, visual perception, pain and touch perception, spatial orientation (like knowing what direction is up), and other cognitive processes. As you can probably tell by now, there is some degree of overlap between the broad types of functions carried out by different parts of the brain. 

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