The Function Of The Cerebral Cortex And It's Main Lobes

1378 words - 6 pages

Describe the structure and functions of the cerebral cortexThe cerebral cortex is a vital contributor to human cognitive processing, and has a complex structure due to its plethoraof processing responsibilities. It's structure, although difficult to define with the naked eye, has various lobes with specific roles in order to function with day to day living. There are many different cognitive functions within each lobe and each contributes to our overall ability to function effectively.The cerebral cortex consists of 4 main sections called lobes. These lobes are the frontal lobe, the parietal lobe, the occipital love and the temporal lobe. Each lobe serves a specific role contributing to cognitive process. It is also divided into the left and right hemispheres, the left hemisphere is often responsible for logical thinking, and the right hemisphere responsible for creative thinking. These two hemispheres are connected via the corpus callosum, which is constructed of axons. The cerebral cortex is the outer layer of the brain and contributes around two-thrids of its mass.The cerebral cortex is often described as the grey matter area of the brain as it contains many cell bodies but fewmyelinated axons, as opposed to the cerebrum which appears white due to it's higher percentage of myelin.The cognitive processes of the brain take place in the grey matter areas, and the communication between these areas takes place in the white matter areas of the brain.The cerebral cortex is responsible for most of our information processing and is the most recent construction of the brain's evolution. Below is a diagram of the cerebral cortex with each of the lobes labelled:C:\Users\ccuk\Desktop\cerebral Cortex.jpgThe cerebral cortex has a large amount of 'folds' which make up it's unusual shape. The protruding part of the ridges are called gyri and the crevice between the ridgesare called sulci. The cerebral cortex is developed in this way to increase it's surface area (including the number of neurons it contains) without increasing it's actual size. The Frontal lobe is located nearest the front of the head, while the Occipital lobe is located at the back. Each lobe is associated with various specific processes. Below is a list of each lobes' main function:
The Parietal lobe is associated with processing information, sensations from touching and pain, spatial awareness and orientation, visual perception, and speech.

The frontal lobe is responsible for making decisions, solving problems, planning and movement. The Frontal lobe itself is divided into three main areas, with the prefrontal cortex being responsible for our general personalities and our cognitive behaviours, and the premotor and motor areas of the frontal lobes controls the execution of our voluntary muscle movements. The frontal lobe is also responsible for our memories and our ability to control impulses.

The occipital lobes are associated with visual processing, including colour recognition, and is...

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