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Central Nervous system
the part of the nervous system that consist of the brain and spinal cord
Peripheral nervous system
the neurons that connect the central nervous system to the rest of the body, including the muscles and glands.
Somatic nervous system
the division of the peripheral nervous system that connects the central service system with sensory receptors, muscles and the skin
Autonomic nervous system
the subdivision of the peripheral nervous system that regulated body functions, such as respiration and digestion
Sympathetic nervous system
branch of the nervous system that plays a crucial role in perp the body for the “fight or flight” response.
Parasympathetic nervous system
division of automatic nervous system, maintaining homeostasis and promoting relaxation
Neurons
a nerve cell the basic building block of the nervous system
Action potential
rapid change in cell membrane potential that signals a cell is active
Synaptic transmission
process by which neurons communicate with each other in the nervous system
Neurotransmission
process where neurons transmit signals to each other using chemical messengers
MRI
Magnetic resonance imaging
fMRI
functional magnetic resonance imaging
PET
Any animal kept by a human being as a source of companionship and pleasure
CAT
Study how cats think and behave, how their environment instincts influence those behaviors
EEG
electronencephalography, used to to study brain function, diagnose brain disorders.
Sleep cycle
natural process that involve alternating periods of wakefulness and sleep
NREM
Non-rapid eye movement
REM
Rapid eye movement
Circadian rhythm
body natural 24/h cycle that regulates various physiological and behavioral processes.
Dreams
a series of thoughts, images and sensations occurring in a periods mid during sleep
Hypnosis
a state of altered consciousness where a person is more receptive to suggestions
Addiction
The fact or condition of being addicted to a particular substance, thing or activity.
Stimulants
A class of drugs or calcium sulfate used to treat bone and joint infections
Depressants
induce sleep, relieve anxiety and muscle spasms and prevent seizures
Halluciongen
psychoactive drugs that produce significant alterations in perception, cognition and mood
sensation
physical feeling or perception resulting from something that happens to body
Perception
process of organizing and interpreting sensory information to understand the environment
Sensory transduction
process of converting a stimulus into electrical signal that the body can use
Opponent process theory
theory in psychology and color vision, explain how the mind perceives color and emotions.
Trichromatic theory
human eye can perceive three colors , red green and blue
Frequency theory
a theory of hearing that explains of the brain perceives sound
Volley theory
theory about how the auditory nerve responds to sound
Place theory of hearing
psychological theory that explains how the brain perceives pitch
Perceptual illusions
discrepancy between how physical world is and how its perceived by the brain
Top-down processing
cognitive process that uses existing knowledge to interpret new information
Bottom up processing
psychological process that use sensory information to understand stimuli
