ITP

Donald Olding Hebb 

(Canadian psychologist)

•Influential in the area of neuropsychology;

•He sought to understand how the function of neurons contributed to psychological processes such as learning.

•Father of neuropsychology and neural networks;

•His views on learning described behavior and thought in terms of brain function, explaining cognitive processes in terms of connections between neuron assemblies.

Input

Receiving Information

Processing

Integrating the infoemation with the past experience

Output

activating or guiding the various mechanisms for the appropriate action

Nervous system

•is able to operate partly because it is made up of cells that form an elaborate communication network.

2 Major types of cell

•NEURONS - a specialized cell of the nervous system that receives and transmits messages

•GLIAL CELLS - cells that remove dead neurons and waste products from the nervous system, nourish and insulate neurons, form myelin, and play a role in neural transmission of messages

Glial Cell •Its four main functions include:

1.to surround neurons and hold them in place,

2.to supply nutrients and oxygen to neurons,

3.to insulate one neuron from another, and

4.to destroy and remove the carcasses of dead neurons (clean up).

NEURONS

a nucleus, are encased in membrane, and contain an assortment of tiny structures. But unlike other cells, neurons are capable of communicating or interacting with one another.

Afferent or sensory neurons

convey messages from the sense organs to the brain

Efferent or motor neurons

•relay messages from the brain to the glands and muscles.

Interneurons

carry impulses from one neurons to another.