Biological And Behavioral Variations Of The And Other Brain Areas

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(1) The personality trait anxiousness seems to have a genetic component, because individuals with that have different biological and behavioral variations of the serotonin-transporter-linked-promotor region (5HTTLPR) genotypes indicate that it’s the cause of differential biological stress reactivity. “Susceptibility to stress may have biological roots, especially in the serotonergic system” (Petersen). Different people becoming anxious and reacting to stress differently because of a genotype shows that there’s a strong nature component. One of the parts of the brain that anxiousness can affect is the amygdala, which signals aggression and fear. “Cognitively changing the meaning of emotional stimuli effects evoked responses in the amygdala and other brain areas” (Mocaiber). So trait-anxious individuals sometimes unconsciously change the meaning of a stimulus to an anxious context. Not only are they succeptible to making stimuli a threat, Mocaiber also claims that they can be “abnormally sensitive to threat-related stimuli.” This makes sense that anxious people see more things as threats and can spot an actual threat very easily.
“Literature has shown that anxious individuals frequently use maladaptive emotion strategies such as suppression” (Mocaiber).
(2) “Increased stressed responsivity in later relative to earlier adolescence may arise from the dynamic changes in genetic effects across development” (Petersen). This suggests that from a developmental perspective,
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