lobes of the brain
1.3) The frontal lobes
-Damage to certain areas of the frontal lobes can result in changed behaviour that is sometimes referred to as personality change, because the individual no longer behaves in the way they used to before the damage -Much of what we call intelligent behaviour relates to the ability to effectively use functions regulated by the frontal lobe.
The temporal lobes
-One of the main functions of the temporal lobes is the perception of sound. -Auditory information is projected to the temporal lobes, where it is registered and interpreted. -The left temporal lobe is regarded as the language centre of the brain and damage to this area can negatively affect the ability to understand what is heard and to use language effectively. -The right temporal lobe is concerned more with non-verbal sounds but also plays some role in speech.
1.1) The frontal lobe
-The frontal lobes represent the most recently evolved part of the brain. -The frontal lobes regulate complex mental activities and behaviours. -Other lobes have more specific functions, the frontal lobes function in a more generalised way to produce intergrated behaviours. -One of the main functions of the frontal lobes is the control of voluntary motor movements including the production of speech
1.2) The frontal lobes
-The motor area of the frontal lobes ensures smooth performance of a sequence of motor movements that make up complex actions like typing. -If this part of the frontal lobe is damaged, the person makes jerky, uncoordinated movements. - Other important functions of the frontal lobe, are to maintain attention and concentration through optimal arousal of the cortex, to apply abstract thinking and to regulate emotions and behaviour.
Occipital lobes
-The occipital lobes lie at the back of the brain. -They are the primary visual area of the cortex. -This is where the area where visual input is interpreted. -If there is a tumour or cell growth that interferes with brain activity in the occipital lobe vission will be affected. -The occipital lobes are also responsible for combining visual stimuli into meaningful patterns. -The intergration of sensory experiances takes place in the occipital lobes.
1.1) The parietal lobes
- The parietal lobes are made up of somatosensory cortex. -The word somatosensory refers to bodily sensations like touch, temperature, pressure and pain. -The parietal lobes receive input about these sensations and also information from muscles and joints, which tells the brain about the bodys position in space. -Areas of the body that are very sensitive , such as hands and lips, have a larger area of representation in the parietal cortex.
1.2) The parietal lobes
- The parietal lobes put together all the somatosensory information received and provide feedback based on that information so that the individual can know what part of the body is being touched and can co-ordinate movements in space.