hindbrain, midbrain, forebrain

hindbrain

cranial nerves

pons

cerebellum

medulla

cranial nerves

they occur in pairs

some are sensory some are motor some are both

many are located in the brain stem (medulla, pons)

pons

link the cerebellum and cortex

cerebellum

coordination of fine motor movement

motor movement integrated with sensory info

timing

medulla

regulates:

sleep wake cyle

heart rate

breathing

etc

mid brain structures

superior colliculus

inferior colliculus

superior colliculus

integrates information from vision, hearing, touch

involved with programming fast eye movements

inferior colliciulus

involved in auditory information

forebrain structures

thalamus

hypothalamus

amygdala

hippocampus

thalamus

the relay station for all cincoming sensory info bound for the cortex

hypothalamus

involved in hunger, thirst, sexual arousal, temp regulation

communicates with pituitary gland (synthesizes and releases hormones)

amygdala

big emotion area, involved in emotional processing and facilitating aggression

hippocampus

learning, memory, and some emotion

henry molaison

had interactable epilepsy

underwent surgery to remove hippocampus

left profoundly amnesic

ventromedial hypothalamus

known as the satiation center

if removed, a rat will eat until it becomes obese but will only eat food it likes

lateral hypothalamus

the hunger center

if removed, a rat doesn’t know its hungry and might not eat

limbic system

includes the hippocampus and amygdala

the amygdala is involved with emotionmal processing, memory, and aggression

neuronal coding

rate of responding: the frequency at which a neuron fires

selectivity: neurons fire when processing a stimulus they are designed to process