View
- Term
- Definition
- Both Sides
Study
- All (34)
Shortcut Show
Next
Prev
Flip
PSYCH 110: Exam 2
Neural communication
|
Chemical and electrical communication between cells communication between cells is chemical communication in sales is electrical
|
Neurons
|
Electrically excitable cells that process and transmit information electrically
|
What are neurons comprised of
|
Cell body
Dendrites
Axon
Neural impulse
Myelin Sheath
Terminal branches of axon |
What is the neuron process
|
Information sent from one end to another and then to other neurons
|
How is the process like flashing a toilet
|
It's an all or nothing response
|
What a different kind of neurons |
Sensory
motor and
Inter |
What are Glial Cells and what do they do |
The neurons super staff they surround neurons and hold them into place supply nutrients and oxygen destroy pathogens and remove dead neurons |
What are neurotransmitters and why are they important |
Chemicals released from the sending neuron that travel across the synapse's and bind receptor site they influence opening and closing of specific channels |
What are different kinds of neurotransmitters |
Acetylcholine
Dopamine
Serotonin
norepinephrine
GABA
Glutamate |
What are the various parts of the central nervous system |
Brain and spinal cord
cerebral cortex
limbic system
cerebellum |
What is each part or division of the peripheral nervous system responsible for
|
Somatic controls skeletal muscles or voluntary movement
Automatic controls glands are other muscles or involuntary movement
Sympathetic control arousal
Parasympathetic controls calming |
What are the different parts or division of the peripheral nervous system |
The automatic controls including sympathetic and parasympathetic
This somatic controls |
What are the technical names for identical and fraternal twins |
Identical twins are mono-zygotes
Fraternal twins are di zygotes |
What is the difference between identical and fraternal twins |
Identical twins are one egg and one sperm
Fraternal twins are two eggs and two sperms |
What is the difference between sensation and perception |
Sensations the process of receiving incoming sensory signals
Perception is the process of organizing and interpreting the sensory information so it makes it |
Bottom up versus top down processing |
Bottom-up is from sensory receptors to the brain
Top-down is from the brain to the sensory preceptors which is more like expectation |
What is psychophysics |
Study of the relationship between the physical characteristics of stimuli and our psychological experience with them |
Absolute threshold |
Minimum stimulation needed to detect a particular stimulus 50% of the time |
Just noticeable difference |
The lowest point where a change in the stimuli can be detected |
Weber's law |
The difference between threshold is always in proportion to the size of the stimulus |
Attentions impact on our perception of the world |
Selective attention ; paying attention to what you want to
Inattentional blindness ; failure to detect major things
Change blindness
Sensory adaption; increases sensitivity to the most important information |
What is the binding problem it was important |
How and where does our brain put the pieces together to make one unified whole |
Trichromatic theory versus opponent process theory |
The eye has three different kinds of receptors; red green and blue
Color receptors and I have opposite colors
Red versus green
Black versus white
Blue versus yellow |
Blindsight |
In some individuals the brain doesn't register sensory information consciously but you can still see |
Soundwaves |
Amplitude determines volume
Frequency determines pitch |
What sound frequencies can we hear |
20-20,000 Hz |
Why do we have two ears |
Location of sounds 3-D hearing allows us to locate were sounds are coming from |
Sensory interaction |
Interactions with smell and touch to enhance flavor
|
Why do we have a good memory for Smell
|
Brain region for Smail is closely connected with the brain reading that involves memory which is the limbic system
|
For specific senses of touch
|
Pressure
warm
cold
pain |
Gestalt Principles
|
When given a cluster sensations people tend to organize them into a meaningful whole
|
Stages of sleep in difference
|
Stage one; like stage of sleep lasting about 515 minutes when your brain actively powers down by 50% or more produces theta waves
Stage two; brain waves slow down even more... But sudden burst of electrical activity sleep spindles
Stages 3-4; extremely short duration in stage III usually only a couple of minutes long stage four is our deepest level of sleep produces delta waves |
Stage five
|
REM sleep internally the bodies raging the brainstem is blocking messages from the motor cortex this is where dreams happen
|
How do drugs impact consciousness
|
Can cause hallucinations lucid dreams no impact on what is being sensed just how it is perceived
|