CAS BI 107 Lecture Notes - Lecture 4: Central Pattern Generator, Thoracic Ganglia, Bipedalism
4 Jan 2017
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Paper in nature reports that amygdala volume correlates with the size and complexity of social networks in adult humans. Thus, the amygdala in important in social behavior. There are more connections in the human brain than there are stars in the milky way, so scientists use simple organisms to search for universal neural circuits . The stimuli in the environment have to be converted to the energy of a nervous impulse. Two steps: transduction conversion of energy of stimulus (light, sound or chemical) to electrical energy of nerve impulse. What happens when we use ear buds: neural circuitry neural organization from senses to muscles. Chameleon"s exceptional vision helps it catch insects very quickly. Specialized retina cells that track the motion of small moving objects that are dark in contrast with the rest of the background. Example: vision: rhodopsin is the visual pigment, made of retinal and a protein (opsin, retinal has cis and trans forms.
