Cognitive Neuroscience

Cognitive Neuroscience

There are two hemispheres in our brain , the right and the left . At first glimpse , these hemispheres appear to be mirror images of one another , however closer examination reveals that they are extremely specialized regions that serve differing functions . Left and right hemispheres are a vital part of the brain due to its function and roles Both contribute mainly but have different roles the will be discuss in this . In general terms it is well understand that the left hemisphere controls linguistic awareness , such as talking , writing reading , speech

communication , spelling , verbal intelligence and memories , as well as information processing in the areas of math grammar , typing , logic , analytic reasoning , and awareness of facts . On the other hand the right hemisphere is connected with unconscious awareness in the sense that it is not linguistically based , such as perception of faces and patterns , knowledge of body language and social cues , imagination and insight , instinctive reasoning , visual-spatial processing , and holistic understanding

Communication among the two hemispheres takes place throughout the corpus callosum , which is more completely developed in women than men- likely giving rise to women 's intuition . In addition , this corpus callosum is the main connection between the left and right hemispheres of the cerebral cortex . Connection among the two halves takes place through axons that unite purely alike regions of the two cerebral cortices

Furthermore , researchers found that , when presented with a stimulus both hemispheres were active and could recognize the nature of visual stimuli in addition to spoken words . However , while the left hemisphere can express itself by verbally describing a stimulus , the right hemisphere can express itself non-verbally by selecting the matching stimulus . In addition , the left hemisphere deal with word choice , rules of grammar , and the meaning of words . The right hemisphere actually determines the emotional content of speech . It communicates using images and pictures and has extremely developed spatial abilities

Moreover , brain damage might occur due to a wide range of conditions illnesses or injuries . Probable causes of widespread brain damage include prolonged hypoxia (deficiency of oxygen , poisoning , infection and neurological illness . Frequent causes of focal or localized brain damage are physical trauma , head injury , stroke , aneurysm or neurological illness . The degree and effect of brain injury is frequently assessed by the use of neurological examination , brain imaging and neuropsychological assessment . In addition , there is a huge difference among adult and baby brains in what causes damage . Baby brains are particularly vulnerable to chemical damage . This is because the development requires chemical signals . Growing neurons can overcome mechanical damage . On the other hand adult brains are principally susceptible to cell death . This is because the moderately few new neurons are created in adults Axon growth is limited

Moreover , damage or disease in the left hemisphere shows up in the right side of the body and visa versa . The left hemisphere tends to be foremost in terms of hand use and language storage in about 92 of humans . To determine its dominance simply watch...