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What is
Capgras Delusion ?
Can identify objects (LEFT HEMISPHERE) but can not give emotional familiarity to the object
Damage in the RIGHT hemisphere
Message goes to the TEMPORAL lobe but connections to the AMEGDALA (emotional response) is severed
Neurons from AUDITORY complex to AMEGDALA are not severed so does have emotion when talking to someone over the phone
Recognition identification is distributed in the brain
Who is
Phineas Gage
?
Iron pole damaged FRONTAL LOBE
Drastic personality change (Basic needs)
Died of seizure
What is
Cotard Delusion
?
Look at the self but can not recognize themselves. There is no emotion and they think they are zombies and are dead.
What is the function of the
Hindbrain
?
Basic life fuctions
What is the function of the
Midbrain
?
Transition from the body to the brain
Pain
What is the function of the
Corpus
Colunus
?
Joins the 4 parts + the neurons between all 4 main sections of the brain
What is the function of the
Thalamus
?
Relay station, sensory info passes through here to perietal lobe to be processed
What is the function of the
Hypothalamus
?
Regulation of body function (temperature, hormonal flow ect), metabolic function
What does the
Broca
area do ?
Deals with speech
People with damage to this area are not able to produce speech but can understand what is being asked
Use
Telegraphic Speech
= content words of them trying to express things (me..go..mall)
What does the
Wernicke
area do ?
Failure to comprehend speech - not sensable sentences or words 'word salad'
Symptom is
Ecophilia
= repeat the exact same question being asked of them
Do both the
Broca
area & the
Wernicke
area communicate with each other through the auditory section ?
Yes
What is the
Left
Hemispheric Specialization ?
Speech
Movement
Verbal memory
What is the
Right
Hemispheric Specialization ?
Visual
Non-verbal memory
Spatial aspects
What is the order of the
Neuron
?
Dendrites -> Soma -> Axon -> Axon terminals
Where does the electrical signal go through in the neuron ?
Axon
What is the
Electroencephalogram
(EEG) ?
Place nets of electrodes on the surface of the scalp
Tells you the accurate TIME (Temporal) but very broad on the area of activity (Spacial)
What is a
Transcranial
Magnetic
Stimulation
(TMS) ?
Use of electrical impulses put over an area of the brain & it knocks out those signals for a short period of time
Used in treatment of depression
There is a potential for making the effects long term if using it ofter
What are
CT
scans ?
X-ray
Cheap
What are
PET
scans ?
put in radio active substance to see where the sugars are being used
What is
Magnetic
Resonance
Imaging
(MRI) ?
Creates a static image
Use a strong magnetic signal to make the hydrogen atoms act in a specific way
Registers the density of the signal
You can use this with other scans to create better scans
What is a
fMRI
?
Dynamic
Hemoglobin depleated due to nurishment of neurons - when the hemoglobin is depleted then that area is working in the brain
BOLD signal (Blood oxygenation level dependent)
What were Roger Sperry's experiments ?
Patients had extreme levels of epilepsy
Operation to sever the CORPUS COLLUSUM to stop any further damage
What are the
Rods
function ?
Light vs dark
What are the
Cones
function ?
Color & Detail
Central attention
What are the functions of the
Bipolar
Cells
?
Communicating with Rods & Cones & Ganglion cells
What are the functions of the
Ganglion
Cells
?
Send information out of the eye into the brain
What are the functions of the
Horizontal
Cells
?
Mediating laterally with Cones, Rods, & Bipolar cells
What are the functions of the
Amacrine
Cells
?
Mediating laterally with Bipolar & Ganglion cells
What is the
Convergence
on
Rods
?
A lot of rods are giving information to a single ganglion so not able to get a lot of detail
What is the
Convergence
on
Cones
?
Cones are able to give more information & more detail because it is a 1:1
What specialized cells are located in the
Fovea
?
Cones
What specialized cells have a
Large
Receptive
Field
?
Rods
What is
Sensory Information
?
The data & actual photons of light creating information to ganglion cells to the brain
What is
Perceptual Information
?
Conscious awareness of what we see with NO blind spots
What is
Cyclopian
Vision
?
Unified vision of the world
What is the
Moch
Band
illusion ?
Flat areas of color, the edges of each band tend to be different then the middle
Edges of grey scale darker on the Right side & lighter on the Left
What colors emerge from the Small-Wave Rods ?
Black & Blue
What colors emerge from the
Medium
-
Wave
Rods
?
Green & Yellow
What colors emerge from the
Large
-
Wave
Rods
?
Red
What is
Bottom
-
Up
process ?
Sensory data processing
What is
Top
-
Down
process ?
Experiencing
Memory
Processing concept driven processing
Author
avarricc
ID
256892
Card Set
Cognition
Description
Vision, scanning machines, lesions of the brain
Updated
1/20/2014, 9:49:03 PM
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