week 3 biology and behavior

What happens when a neuron fires

chemicals are released from terminal buttons

The cell membrane depolarizes

An action potential occurs

damage to the temporal lobe causes what?

Impairment of memory, loss of ability to process auditory information, and recognize faces and objects

damage to parietal lobe can cause

hemineglect. patients pay far less attention to one side of their surroundings

function of left hemisphere

is called interpretation and it is associated with language processing

prefrontal cortex

conscious thought and planning occurs

hippocampus

memory

basal ganglia

movement, reward

thalamus

sensory gateway

Agonist

increase the effect of neurotransmitters

Antagonist drugs

decrease the effect of neurotransmitters

Autonomic nervous system

regulates body’s glands and internal organs

sympathetic division

Activates body for action and arousal

Sensory information from right visual field goes where ?

left hemisphere

repolarization

membrane potential becoming negative once again due to potassium ions exiting the cell

relative refractory period

membrane potential is slightly more negative than resting potential requiring more excitatory input to trigger another action potential

depolarization

more positive ions inside the cell

A neuron at rest is?

polarized and has more negative electrical charge inside than outside

reuptake

recycles neurotransmitters

enzyme deactivation

destroys neurotransmitters

auto reception

stop neurotransmitter release

neurogenesis

production of new neurons