3. Biological Bases Of Behavior Flashcards
Neurotransmitter: acetylcholine’s function?
Problems associated w/ excess or deficit?
Function: motor movement
Lack of it associated with Alzheimer’s disease
Acetylcholine, dopamine, endorphins, and serotonins are all:
Neurotransmitters
Dopamine:function?
Problems associated?
Function: Motor movement and alertness
Problems: lack of it associated with Parkinson’s disease
Over abundance is associated with schizophrenia
Endorphins function?
Problems associated?
F: pain control
Problems: involved in addictions
Serotonin function?
Problems?
F: mood control
Prob: lack of it associated with clinical depression
What is associated with Alzheimer’s disease?
Lack of acetylcholine
What is associated with Parkinson’s disease?
Lack of dopamine
What is associated with clinical depression?
Lack of serotonin
What is associated with schizophrenia?
Over abundance of dopamine
Ways of studying the brain in order of worst to best and from structural to functional
EEG -> CAT Scan -> MRI -> PET Scan -> fMRI
EEG detects
Brain waves
CAT Scan is for
3D pictures
MRI
Detailed images
PET Scan
Functional use: brain activity
fMRI
MRI + PET
Brain can be divided into 3 parts: hindbrain, midbrain, and forebrain.
What structures are in each part?
Hind: medulla, pons, cerebellum
Mid: reticular formation
Fore: thalamus, hypothalamus, amygdala, hippocampus
Function of medulla
Control of blood pressure, heart rate, and breathing
Function of pons
Control of facial expressions
Function of cerebellum
Coordinates habitual muscle movements
Function of midbrain
Area btwn hind and forebrain, and integrates some types of sensory info and muscle movements
Function of thalamus
Located in the middle, acts as a junction of sensory signals
Function of hypothalamus
Very small but controls body temp, sexual arousal, hunger, thirst, and endocrine system.
Basically, BIOLOGICAL THYTHMS
Function of amygdala
Emotion
Function of hippocampus
Memory must pass through here to be encoded
What is the limbic system?
Parts of the forebrain are grouped together and called limbic system cuz they all deal with aspects of emotion and memory
Which lobe is Broca’s area in and what is it’s function
Frontal lobe, and is responsible for controlling muscles in producing speech.
W/o it, we cannot speak
Which lobe is Wernicke’s area located and what is it’s function?
In the temporal lobes, and it interprets both written and spoken language
What is endocrine system?
System of hormone producing glands that affect our biological processes
What do adrenal glands produce?
Adrenaline to signal the body to prepare for fight or flight
What is a monozygotic twin
Identical twin
Speech is usually controlled by which hemisphere
Left hemisphere
What chemical ions are most involved in action potential of a neuron?
Sodium(Na) and potassium(K)