Psychology and Biology
Neuron - specialized cell of nervous that receives and transmit messages.
Afferent/ sensory neurons - transmit messages from sensory receptors to-the brain and
spinal cord
Efferent/ motor neurons - transmits messages from the brain and spiral cord to muscles
and glands.
Neurotransmitters
• chemical-substances involved in the transmission of neutral impulses from one
neuron to the other.
• Either excitatory( keep passing the message along) or inhibitory ( stop messages)
• involved in both physical and psychological processes.
• excesses and deficiencies of neurotransmitters linked to disorders.
Acetylcholine - Dopamine -
• Functions - Muscle functions, • Function - pleasure, voluntary
learning, memory movement, learning, memory
• Associated Disorders - Alzheimer's • Associated Disorders - Parkinson's
Disease (-) , Muscle Spasms (+) disease(-), schizophrenia(+) ,
addiction(+)
Norepinephrine - Serotonin -
• Function - arousal, learning, • Function - mood regulation,
memory, eating, fight or flight. hunger, sleep
• Associated Disorder- anxiety(+), • Associated Disorders - eating
depression and other mood disorders (-), alcoholism(-)
disorders (-) depression(-), aggression
(-), insomnia(-)
GABA - Endorphins -
• Function - calming, sleep-wake • Function - pain relief, stress
cycle reduction, sense of competence.
• Associated Disorders - depression • Associated Diseases - pain(-),
(-), anxiety, sleep disorders (-) depression(-), anxiety(-)
Neuron - specialized cell of nervous that receives and transmit messages.
Afferent/ sensory neurons - transmit messages from sensory receptors to-the brain and
spinal cord
Efferent/ motor neurons - transmits messages from the brain and spiral cord to muscles
and glands.
Neurotransmitters
• chemical-substances involved in the transmission of neutral impulses from one
neuron to the other.
• Either excitatory( keep passing the message along) or inhibitory ( stop messages)
• involved in both physical and psychological processes.
• excesses and deficiencies of neurotransmitters linked to disorders.
Acetylcholine - Dopamine -
• Functions - Muscle functions, • Function - pleasure, voluntary
learning, memory movement, learning, memory
• Associated Disorders - Alzheimer's • Associated Disorders - Parkinson's
Disease (-) , Muscle Spasms (+) disease(-), schizophrenia(+) ,
addiction(+)
Norepinephrine - Serotonin -
• Function - arousal, learning, • Function - mood regulation,
memory, eating, fight or flight. hunger, sleep
• Associated Disorder- anxiety(+), • Associated Disorders - eating
depression and other mood disorders (-), alcoholism(-)
disorders (-) depression(-), aggression
(-), insomnia(-)
GABA - Endorphins -
• Function - calming, sleep-wake • Function - pain relief, stress
cycle reduction, sense of competence.
• Associated Disorders - depression • Associated Diseases - pain(-),
(-), anxiety, sleep disorders (-) depression(-), anxiety(-)
