PSYCH 140 Chapter Notes - Chapter 2: Rapid Eye Movement Sleep, Cell Division, Jerky

• School: Berkeley
• Department: Psychology
• Course: PSYCH 140
• Professor: Alison Gopnik

Document Summary

Epigenesis: the emergence of new structures and functions in the course of development. We all originates as a single cell that resulted from the union of two highly specialized cells: a sperm of out father and an egg from our mother. Gametes: reproductive cells----egg and sperm that contain only half the genetic material of the other cells in the body. Cell division, mitosis: cell division that results in two identical daughter cells. Embryo: developing organism from 3rd week to 8 week of prenatal development. Fetus: developing organism from 9th week to birth. State: the level of arousal and engagement in the environment, ranging from deep sleep to intense activity. Rem sleep (rapid eye movement): an active sleep state characterized by quick, jerky eye movements under closed lids and associated with dreaming in adults. Non-rem sleep: absence of motor activity or eye movements and more regular, slow brain waves, breathing, and heart rate.