PSY100H1 Lecture Notes - Cerebral Cortex, Agnosia, Switchboard Operator
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PSY100H1 Full Course Notes
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Document Summary
One ant is no ant, but if there"s a million ants is a viable community of organisms that exhibits coordinated, self-directed behaviour, they behave differently together than when they"re by themselves individually. Similarly, one neuron is no neuron, because neurons need to communicate with each other for thoughts to be processed, if there"s only one neuron, it cannot do anything, 100 billion neurons is you, and it is the interactions between the neurons that makes you who you are. Neurons are communication devices through chemical neurotransmitters which influence the electric potential. Interneurons facilitate within the central nervous system transmission of information. Dendrites: receive information from other neurons and transmit towards the cell body. Cell body: keeps the neuron alive and determines whether it will fire - if its electrical potential is strong enough (threshold potential) Axon: extending fibre that conducts impulses away from the cell body.
