Psychology 2011A/B Lecture 3: Psych - Sleep
2 Feb 2018
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Can feel the fur, the head, tail this feeling travels through the spine, to the brain, and through a structure which is in the centre of the head. Thalamus projects incoming signals to where they need to go. Cortex is the outer layer, responses to signal. There are 2 parts to the cortex: Occipital lobes primary projection for vision. Frontal lobes (prefrontal lobes) organizing the material you are processing in your brain to give it structure. There is a cell body, projections coming from the cell body, the signal moves down the axon to the end. The signal itself is a change in the electrical potential in the cell membrane. In humans and mammals, most of the connections are not direct, there is a gap filled with spinal fluid in the central nervous system. It is small, and when the signal reaches the end of the axon, there are chemicals which open up. Receptor sites a lock and key mechanism.
