A.P. Psychology 3-B (A) - Brain Monitoring Tools
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Transcript A.P. Psychology 3-B (A) - Brain Monitoring Tools
Unit 3-B (A):
Brain Monitoring Tools
Mr. McCormick
A.P. Psychology
Do-Now
(In Journal)
Why is it important to learn about the brain
when studying Psychology?
What
roles does it play in human thought and
behavior?
What are some ways that neuroscientists
monitor brain activity?
Monitoring the Brain: Lesions
Lesion:
Tissue destruction
Naturally or experimentally caused destruction of
brain tissue
Monitoring the Brain: Lesions
How can lesions in the brain
help neuroscientists
better understand neural activity?
Monitoring the Brain:
Recording Electrical Activity
E.E.G. (Electroencephalogram):
Amplified recording of the waves of electrical
activity that sweep across the brains surface
Measured electrodes placed on the scalp
Monitoring the Brain:
Neuroimaging Techniques
C.T. (Computed Tomography) Scan:
X-ray photos taken from different angles. combined through
computers into a composite representation
Reveals brain damage
“CAT” Scan
P.E.T. (Positron Emission Tomography) Scan:
Visual display of brain activity
Detects where a radioactive form of glucose goes while the
brain performs a given task
Neuroimaging Techniques:
P.E.T. Scan
Video Clip: P.E.T. Scan
How
do neuroscientists use
P.E.T. Scans to determine the
neural activity of language?
What
is the role of radioactive
glucose?
Monitoring the Brain:
Neuroimaging Techniques
M.R.I. (Magnetic Resonance Imaging):
Uses magnetic fields and radio waves to produce
computer-generated images of soft tissue
Displays brain anatomy
f.M.R.I. (Functional M.R.I.):
Reveals brain activity and blood flow by comparing
successive M.R.I. scans
Displays brain function
Monitoring the Brain:
Comparing M.R.I. Scans
MRI scan of a healthy individual (left) and a person with schizophrenia (right)
Video Clip: f.M.R.I.
What
is the difference between a
M.R.I. and a f.M.R.I. Scan?
How
do f.M.R.I. Scans display
the functions of the brain?
Review
Differentiate between the following methods of
measuring brain activity:
E.E.G. (Electroencephalogram)
C.T. (Computed Tomography) Scan
P.E.T. (Position Emission Tomography) Scan
M.R.I. (Magnetic Resonance Imaging)
f.M.R.I. (Functional M.R.I.)
Homework
Unit 3-B FRQ:
Unit 3 Key People:
Unit 3 Project: “3-D Brain Model”