How are the primary biological foundations of behavior linked to psychology?

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One of the primary biological foundations of behavior is a genotype. A genotype is the genetic make up of an individual that is comprised of DNA from the individual's parents. A person's genetic make up and the environment influence their phenotype. This is the individual's observable behavioral or physical traits....

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One of the primary biological foundations of behavior is a genotype. A genotype is the genetic make up of an individual that is comprised of DNA from the individual's parents. A person's genetic make up and the environment influence their phenotype. This is the individual's observable behavioral or physical traits. These genetic traits relate specifically to psychology's dispositional theory. The dispositional theory looks at personality and behavior including patterns of behavior, thoughts, and emotions in an individual. The core personality traits that are focused on in psychology are extroversion, agreeableness, conscientiousness, neuroticism, and openness to experience. With this being said, psychology clearly studies behaviors, and these behaviors are influenced by our biological genetic make up and the environment around us.

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When you are looking at biology and how it affects behavior you are looking at neurons as these are the base level of how the body communicates and form behavior.  A neuron is the basic working unit of the nervous system (which includes the central and peripheral nervous system). The central nervous system (CNS) is comprised of the brain and spine and the peripheral nervous system (PNS) is comprised of nerves that are connected to every other part of the body.  Behavior occurs within the body when neurons within the CNS send messages from the brain, down the spine, and to the PNS.  This results in muscle movement, and automatic behaviors such as breathing.  Information is taken from the PNS and is sent back through the spine to the brain where that information is processed and reactions and emotions are formed.  Without the neuron firing within the CNS this sequence of events could not occur and behavior would not be possible.

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