Psychology 2220A/B Lecture Notes - Lecture 12: Fetal Alcohol Spectrum Disorder, Motor Cortex, Morning Sickness

• School: Western University
• Department: Psychology
• Course: Psychology 2220A/B
• Professor: Jody Culham

Document Summary

Cortical evolution vs development: visual cortex is only slightly bigger, while the parietal cortex is 32x bigger than the. Brain abnormalities: brain of someone with fasd is smaller, doesn"t have as many gyri and sulci, not as convoluted, and shows abnormalities, can get callosal agenesis in extreme cases, where the corpus collosum doesn"t develop. Epigenetics: nature vs nurture idea is actually wrong you are born with certain genes and your environment determines which are turned on and off, the way we function depends on which genes are turned off and on. Identical twins: monozygotic: come from one zygote, 100% relatedness. Fraternal twins: dizygotic: originate from two separate zygotes, 50% relatedness (same as any two siblings) If one twin has it, their identical twin has a 69% chance of having it too, but the other dizygotic twin has only a 10% chance of having it too.