##s Of Prenatal Cocaine Exposure And Cortisol Reactivity In Infants

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On September 13th, we discussed various topics within the field of the brain, biology, and development. Topics ranged from prenatal cocaine exposure and cortisol reactivity in infants to adolescent risk-taking. I particularly enjoyed Eiden and colleagues’ article the most out of the assigned articles. Eiden and colleagues conducted a study examining the effects of prenatal cocaine exposure on infant hypothalamic-pituitary-adrenal axis activity and reactivity at seven months old (Eiden et al., pg 528). They hypothesized that infants exposed to cocaine would have higher cortisol reactivity and would have a slower recovery in response compared to those in the control group. They also hypothesized that caregiving instability may moderate…show more content…
For example, teenagers would drive their cars fast because it gives them a rush, a feeling of walking on dangerousness even though it is a stupid attempt at possibly gaining popularity in their friendship circles. Dopamine plays an important role in the brain’s area focused on reward, increasing, decreasing, and the redistribution of dopamine. We discussed the fact that adolescents feel invincible and may share more emotions with their peers which can lead to choosing to take certain risks. For example, if they see (or hear) that their peers are partaking in the consumption of alcohol or drugs, they may do it themselves to feel a part of the gang or to feel just as invincible as their friends are. The claim of the day was that genetic factors play a strong role in human development that genes alone can determine certain human behavioral characteristics. Plomin focused on behavioral genetics in the 21st century. He discusses quantitative genetics and molecular genetics along with three different directions for genetic research such as developmental genetics, environmental genetics, and multivariate genetics. The greatest need for quantitative genetic research going beyond heritability is asking how much genetic factors are important in behavioral development. The three different directions of

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