What is the tissue that covers the axon called?
Myelin Sheath
What is the blue, yellow, pink, and green section of the brain called?
frontal, parietal, occipital, temporal lobe, respectively.
What are the two types of photoreceptor cells in the eye?
Rods and Cones
What is the difference between MRI and fMRI?
MRI just portrays structure while fMRI shows structure and function.
What is brain plasticity?
brain can adapt and reorganize. experiences can sculpt features of the brain
What is the space between the two neurons called?
Synaptic Cleft
What is the location and main function of the Broca's Area?
The Broca's Area is in the frontal lobe and involved in speech production
Which photoreceptor is responsible for peripheral vision, and which is responsible for higher light level vision?
Rods for peripheral and night vision.
Cones for high-light and acute vision.
What is a PET vs a CT scan?
PET scan shows metabolic acitivty in the tissue of the brain while CT scans show structure of the brain.
When you initally go out on a cold day, you start shivering, but after a while, you become ok again. What is this called?
Sensory Adaptation
Name the different types of nuertransmitters
Acetylcholine, Dopamine, Norepinephrine, Serotonin, GABA, Endorphins
This area of the brain is where all the long-term memories are stored
Hippocampus
What is the fovea and where is it located?
The fovea is a circle in the back of the eye that contiains mostly Cones. Spot of visiual acuity
What is an electroencephalogram?
an amplified recording of the waves of electrical activity that sweep across the brain's surface. These waves are measured by electrodes placed on the scalp.
State the two types of processing theories and explain them.
Bottom-up-
bits and pieces of info processed into a meaningful whole
Top-down-
recognize whole patterns before analyzing component parts
Incorrect levels of serotonin leads to these desieases
Parkinson's, Schizophrenia
To do such actions, this girl must have a balanced ____.
Cerebellum
Which lobe in the brain is responsible for controlling the perception of the eye stimulus?
Occipital lobe
What is a brain lesioning?
A procedure in which special needles are used to create lesions along selected nerves
Split brain reasearch was driven by -____ and ____.
Roger and Sperry
In the inside of a resting nueron is ____ charged and the outside is ____ charged with _____ ions.
negativley; positively; sodium
What is the structure that connects two hemispheres of the brain, and what syndrome can occur it is severed?
After a split-brain surgery the two hemispheres do not exchange information as efficiently as before. This impairment can result in split-brain syndrome, a condition where the separation of the hemispheres affects behavior and agency.
What order is the stimulus processed from the eye to the brain?
Photoreceptors to bipolar cells to ganglion cells.
__ scans work this way: the patient is given a small amount of a radioactive substance. A detector then views an image of this "radiotracer" as it moves through the body.
PET Scans.
Describe Phineas Gauge's condition and the result of his study.
A iron rod went through his head and hit both parts of the frontal lobe. This impared his judgement about how to act and he lost his morals.