PSY BEH 11A Lecture Notes - Lecture 6: Sensory Neuron, Striatum, Oligodendrocyte
3 Feb 2016
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1/19/16 chapter 3: brain and nervous system part 1. The organism as a machine: descartes: energy from the outside is reflected by the nerbous systemback to an organism"s muscles (reflex) Which transmits excitation up to the brain. Which relays the excitation down to a muscle or gland. Producing action: descartes: the ability to choose different actions in response to a stimulus depends on activity of the soul, modern neurosciences research seeks more mechanistic accounts. Building blocks of the nervous system: the basic unit of communication in the nerbous system is htte neuron, neurons have: Collects information being sent by other neurons. Information goes to the cell body an axon. Cable existing the information to other neurons: our nervous systems have on the order of 100 billion neurons, there are many kinds of neurons, a simple classification: Axonless interneuron (locust nervous system: afferent (towards the central nervous system) Most neurons are interneurons that connect to other interneurons.
