Functions of Cerebral Lobes

Cerebrum is the largest part and constitute about 80% of the brain. It consists of  two cerebral hemispheres, which held together by a  curved thick band of nerve  fibres called corpus callosum. Three deep and wide fissure divide each cerebral hemisphere into four lobes. They are frontal lobe, parietal lobe, temporal lobe and occipital lobe.

Lobes and Area	Function
I. Frontal Lobe	Monitoring complex thoughts, actions, creative ideas, perceptions,memories, muscle movements, judgement, insight, reasoning, expression of emotions, decision making, personality, will power etc.
a. Motor area	Controls voluntary movements of the muscles.
b. Premotor area	The highest centre for involuntary movements of muscles and autonomic neural system.
c. Motor speech area (Broca’s area)	Speech
II. Parietal lobe	Registration of sensory perception of touch, pain, heat and cold, knowledge about position in space etc.
a. Somaesthetic area	Perceptions of general sensations like pain, touch, pressure and temperature etc.
b. Gustatory area	Sense of taste.
c. Sensory speech area	Speech
III. Temporal lobe	Decoding and interpretation of sound, language comprehension, smell, memory etc.
a. Olfactory area	Sense of smell
b. Auditory area	Hearing
c. Wernicke’s area	Understanding speech
IV. Occipital lobe	Decoding and interpretation of visual information, shape, colour etc.
a. Visual area	Sensation of light.