Hormones and Development Lecture 6

Food for thought How do hormones affect brain? What effect do hormones have on behavior at critical points in development?

How boys and girls become boys and girls Default at conception is girl

How boys and girls become boys and girls Default at conception is girl Early in prenatal development, male hormones are secreted (in boys), and male sex organs begin to develop

How boys and girls become boys and girls Default at conception is girl Early in prenatal development, male hormones are secreted (in boys), and male sex organs begin to develop What happens if something here goes wrong

How boys and girls become boys and girls Default at conception is girl Early in prenatal development, male hormones are secreted (in boys), and male sex organs begin to develop What happens if something here goes wrong androgenized females

How boys and girls become boys and girls Default at conception is girl Early in prenatal development, male hormones are secreted (in boys), and male sex organs begin to develop What happens if something here goes wrong androgenized females XY females

Effect of hormones on behavior Hormones can act as neurotransmitters

Effect of hormones on behavior Hormones can act as neurotransmitters Used in communication between neurons in the brain just like other chemicals

Effect of hormones on behavior Hormones can act as neurotransmitters Used in communication between neurons in the brain just like other chemicals Can impact how effectively other neurotransmitters work

Neurotransmitters Chemicals released in communication between neurons

Neurotransmitters Chemicals released in communication between neurons Could be affected by hormonal changes

Neurotransmitters Chemicals released in communication between neurons Could be affected by hormonal changes Examples

Neurotransmitters Chemicals released in communication between neurons Could be affected by hormonal changes Examples Dopamine

Neurotransmitters Chemicals released in communication between neurons Could be affected by hormonal changes Examples Dopamine prefrontal cortex development

Neurotransmitters Chemicals released in communication between neurons Could be affected by hormonal changes Examples Dopamine prefrontal cortex development PKU

Neurotransmitters Chemicals released in communication between neurons Could be affected by hormonal changes Examples Dopamine prefrontal cortex development PKU Seratonin

Neurotransmitters Chemicals released in communication between neurons Could be affected by hormonal changes Examples Dopamine prefrontal cortex development PKU Seratonin Depression

Neurotransmitters Chemicals released in communication between neurons Could be affected by hormonal changes Examples Dopamine prefrontal cortex development PKU Seratonin Depression Autism?

Effect of hormones on behavior Hormones are like neurotransmitters

Effect of hormones on behavior Hormones are like neurotransmitters They are secreted by glands in the body and brain

Effect of hormones on behavior Hormones are like neurotransmitters They are secreted by glands in the body and brain In response to stress

Effect of hormones on behavior Hormones are like neurotransmitters They are secreted by glands in the body and brain In response to stress In response to bodily changes Eating disorders

Effect of hormones on behavior Hormones are like neurotransmitters They are secreted by glands in the body and brain In response to stress In response to bodily changes Eating disorders Aging

Adolescence How might hormones change the brain in adolescence

Adolescence How might hormones change the brain in adolescence Possibly have some role in changes we know about – behavior, maturation of frontal lobes, impulse control

Adolescence How might hormones change the brain in adolescence Possibly have some role in changes we know about – behavior, maturation of frontal lobes, impulse control Sexuality

Adolescence How might hormones change the brain in adolescence Possibly have some role in changes we know about – behavior, maturation of frontal lobes, impulse control Sexuality Hormones secreted by hypothalamus likely play a role

Adolescence How might hormones change the brain in adolescence Possibly have some role in changes we know about – behavior, maturation of frontal lobes, impulse control Sexuality Hormones secreted by hypothalamus likely play a role Hypothalamus size in homosexuality