PSYC 2230 Chapter Notes - Chapter 3: Non-Rapid Eye Movement Sleep, Slow-Wave Sleep, Basal Forebrain
4 Dec 2016
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Emphasize the organism as a whole and argues we can best understand behaviour by understanding how the organism becomes activated. We can understand motivation by viewing it on a continuum of behavioural activation ranging from low levels of arousal to high levels. Behaviour will change as we become more aroused. Inverted u function indicated that increasing arousal improves performance only up to a point (optimal arousal) The arousal performance relationship yerkes dodson law. Optimal arousal for one task may not be optimal for another. Ras is a group of neurons located in the brain stems central core which runs from the level of the medulla through the thalamus. Ras is also responsible for the activation of the organism. Ras is a part of the brain circuitry that serves to arouse the organism from sleep to wakefulness and determine where on the arousal continuum we find ourselves and to what we pay attention.
