AP Psych Unit 1 - Chemical Signals

Neurotransmitters and Hormornes

Dopamine

Reward pathway, voluntary movement, influences sleeping

Serotonin

Mood, sleep, hunger

Norepinephrine

Alertness and arousal (vigilance), with epinephrine during SNS response

Gultamate

Learning and memory, wildly distributed excitatory neurotransmitter

GABA

Sleep, calm, slowdown, inhibitory neurotransmitter

Endorphins

Reduce pain

Substance P

In the brain and spinal cord, transmit pain signals

Acetylcholine (Ach)

Muscle actions & attention (in learnin)

Endocrine System

The system in the body that controls hormones, chemical communication system

Leptin

Inhibts hunger when it doesn't need energy

Melatonin

Regulation of circadian rhythm, pineal response to light

Ghrelin

Triggers hunger, growth hormones, insulin release, protects cardio vascular health

Cortisol

Maintain homeostasis → stress hormone

Adrenilin

Prepare body for emergencies → Flight or fight response

Hormones

Chemical messenger that are manufactured by the Endocrine glands, travel through the blood stream, affect other tissues