Psychology 2040A/B Lecture 3: lecture 3

• School: Western University
• Department: Psychology
• Course: Psychology 2040A/B
• Professor: J.Bruce Morton

Document Summary

Ele(cid:272)tro measure electrical changes in brain at scalp level. Brain starts off similar in everyone, but changes are made during the development of brain which can cause defects. Head 2 hemispheres that form into brain (in frontbrain) Tube binds then closes into direction of head and tail. Eat folic acid (diet) which helps close tube. Brain splits into 3 sections (fore, mid, hind) which is maintained throughout life. Optic nerve and retina is also forming already (can be seen) in the forebrain. 2 spheres of forebrain grow very large and wrap around the entire brain. Surface is initially flat, then folds as it grows (increase area of cortex without increasing volume. ) Medulla and pons: basic functions breathing. Hypothalamus bridge between nervous and endocrine (sends hormones). Internal capsule connects thalamus to cerebral cortex. *info goes first to thalamus, to internal capsule, to cortex: mechanisms of change: cortical development. Glial cells: outnumber neurons 10:1, support.