HTHSCI 1G03 Lecture 3: Psychobiology Lecture 3 – Neurons and Information Transfer
6 Nov 2016
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Psychobiology lecture 3 neurons and information transfer. Behaviour systems & pathways centers & local circuits neuron microcircuit synpase . ** highlighted area displays what will be focused on in this course. Interested in how individual neurons contribute to sight; psychologists have provided a link between sight and the occipital cortex. Insert a metal (metal conducts electrical signal) electrode into the back of the brain (visual cortex) of a cat. Show the cat bars displayed vertically, diagonally and horizontally. The action potentials of the cat are displayed it is greatest for the vertical bar and decreases as it become horizontal. Neuron has a preferential activation for vertical bars opposite it has a preferential activation for horizontal bars. Neurons and glia are the basic units of the brain (glia cells will not be discussed in this course) Neurons are the basic signalling units of the nervous system, they: receive information, integrate information, transmit information. Dendrites - branches or arms; they receive information.
