The Nervous System

all nerve cells in the body that are not part of the central nervous system. Includes somatic and autonomic nervous systems

part of the peripheral nervous system which sends information to and from muscles, joints and skin

system in the peripheral nervous system which includes internal organs and glands

fight or flight reaction acts when we believe we are threatened

stress causes this reaction

the rest and digest part of autonomic nervous system

changes the body back to a its calm state

the brain and spinal cord

spinal cord= "go between" between PNS and CNS
also has some basic motor movements- doesn't relay messages to brain but can be overidden

connects the spinal cord to the brain- it is home to the basic programs of survival
ex: breathing, swallowing, vomiting, unrinating, mating

controls the automatic functions of the body

Lower/middle portion of the brainstem
it is associated with sleep/wake/consciousness/alertness

Damage= coma

part of the brainstem which controls heartbeat, circulation, respiration

damage= death

controls balance, coordination, graceful movement, motor learnining

damage= loss of motor coordination "ataxia"

maybe associated with "simulation"

the sensory weigh-station, all sensory info except smell goes through ____ to the cortex

restricts senses during sleep

the master regulator of the brain, projects to whole brain, regulates internal bodily functions
4 Fs: fighting, fleeing, feeding, fucking

memory

emotion, sensory input before cortex

allows us to have preferences, emotion markers--> helps us make decisions easier based on preferences

the outer layer of brain tissue which forms the surface of the brain

bridge of millions of axons which connects the two hemispheres of the brain so information can flow between

VISION
Primary visual cortex- spatial relations
Secondary visual cortex- color, form, motion

deals with color and form

deals with motion and location

sensory association, touch, has left and right lobe

part of parietal lobe associated with touch, integration of sensory info--> projected to the frontal lobe

recognize concurrent sensory signals as a single object

takes places in the primary somatosensory cortex

to be able to mentally "view" objects in different perspectives

takes place in primary somatosensory cortex

if one lobe of the parietal part of brain is damaged

a distorted representation of the entire body

"little man"

the lobe associated with auditory and categorization

needed for spoken language comprehension

part of temporal lobe associated with hearing

also facial recognition

intersection of the temporal and occipital lobes associated with facieal reconition

lose ability to categorize the sounds of language

cannot understand language or speak (coordinate right sounds)

part of brain associated with motor, sensory, planning
it is the last part of the brain to fully develop

part of frontal lobe which controls fine movements like the face and fingers

cannot produce language but can understand it

in the left frontal lobe

part of frontal lobe associated with planning, directing/maintaining attention

rational activity

part of the prefrontal lobe, controls social functioning, and impulse control

the ability to change over time
brains have it

a specific time when certain processes must develop

subjective awareness of experience

possibility of having two distinct conscious minds

the corpus callosum is severed

left controls the right and vice versa

hemisphere of brain which specializes in spoken language/grammar and motor control of the right side of the body

hemisphere of the brain which specializes in spatial relations, emotion and motor control of the left side of the body

lack of speech

lack of emotion/ variation of tone in speech

conversion of stimulus (light, sound, etc) to neural impulses at receptor sights

interpreting the stimuli, applying meaning to them

can be affected by learning

process of sensory signals being relayed from lower sensory to higher perception

prior knowledge, expectation--> what we percive in context

we have limited sensory capacity- some sensations screened to let into awareness