Behavior of and individual is guided mainly by biological, psychological and socio-cultural factors. Biological factors included hereditary, role of nervous system, neurotransmitters and different hormones secreted by glands. These biological factors are very important in determining behaviors. Some examples of he biological factors which contribute for our behavior are illustrated here. The Hippocampus and the amygdale are involved in formation of new memories, the retention of memories and emotions (witting, 2001). Vasopressin hormone is an important regulator of water balance in the body (Levinthal, 2003)imbalance in the neurotransmitters dopamine and serotonin may underlie mental disturbances like schizophrenia and depression (Wade and tarvis, 1990).
Nervous system is the sum totals of the tissues that record and distribute information within individual. It is the complex network of neurons that regulates bodily processes and is ultimately responsible for all aspects of conscious experience. Nervous system is composed mainly of two types of cells i.e. Neuron and Glia cell. “Glia Cell provide a mechanical framework supporting the network of neurons, they insulate one neuron from another hey police the nervous system from foreign materials and debris resulting from injury or infection and hey provide chemical barrier, the blood brain barrier which prevents some substances in the blood from contacting the sensitive nerve cells” (Mohanty, 1990). Neuron is the structural and functional unit of nervous system. All the function of nervous system is carried oft through neurons.
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