New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

Psych 3322- Exam 1

by: Madilene Williams

Psych 3322- Exam 1 Psych 3322 (Psychology: Brain and Behavior.)

Madilene Williams
Texas State

Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

This study guide covers Topic 4 for Exam 1.
Brain and Behavior
Carmen Westerberg
Study Guide
psych, 3322, brian, and, behavior, exam1, Ch.2, Topic4
50 ?




Popular in Brain and Behavior

Popular in Psychology And Social Behavior

This 4 page Study Guide was uploaded by Madilene Williams on Friday September 16, 2016. The Study Guide belongs to Psych 3322 (Psychology: Brain and Behavior.) at Texas State University taught by Carmen Westerberg in Fall 2016. Since its upload, it has received 3 views. For similar materials see Brain and Behavior in Psychology And Social Behavior at Texas State University.

Similar to Psych 3322 (Psychology: Brain and Behavior.) at Texas State

Popular in Psychology And Social Behavior


Reviews for Psych 3322- Exam 1


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 09/16/16
Friday, September 16, 2016 Psych 3322- Exam 1 Topic 4 • Correlation= take 2 measure from a person and seeing if they co-vary (one behavioral, one somatic) ex. brain size to the learning scores. • Difference between a positive and a negative correlation= positive (both measures increase together), negative (one measure increases while the other measure decreases) • Main limitation of correlational research= there is no causality/ cant specifically give a straight answer, its just showing the association. • Somatic intervention= manipulate body and measure the change in the behavior/ ex. (somatic) administer a hormone- to (behavior) strength of mating behavior. • Behavioral intervention= manipulate the behavior or experience and then measure how the body changes/ ex. put a male in the presence of females, and see the changes in hormone levels. BOTH of these DO have causality. • - Know the difference between these three (may be examples on test) • 3 different techniques used to visualize brain cells, how each one works, and when would each type be useful= microscope (using dye with tissue and put under the microscope)- developed Golgi stains (doesn’t attach to all neurons) this can figure out the different types of neurons. -Nissl stain (dye is attracted to the genetic material which is in the nucleus so you can only really see the cell bodys/ used for counting and seeing the density of cells. -Retrograde labeling (cool pics; they inject a tracer into tissue and is taken up by the axon terminals and travels to the cell body and to 1 Friday, September 16, 2016 dendrites; shows where the cell bodies are coming from. ALL used to look at the structure of the neurons. • Single-cell recordings= when you record the electrical activity of a single neuron. (mapping out the visual system) • Single-cell recordings tell us about cells in the visual cortex compared with cells in the temporal cortex= • Two common methods for visualizing brain structure= CT scan/ MRI. • How CT works, and when it is used= its using x-ray technology; the x - ray start at one point and then at the end you can tell how much energy was absorbed by the head after being scanned. (3D volume of data/ takes pictures all the way around the head.)- problem: cannot make out details and specific structures/ BUT they can see things like a stroke. • How MRI works, and when it is used= Magnetic resonance imaging (strong magnet, protons line up in the parallel, brain sends radio wave pulses, and then protons hold onto that energy and then when the machine is stopped the protons will let off that energy. (measuring that energy) You can get a lot more details. • What did MRI tell us about the relationship between hippocampus size and memory in patients with early Alzheimer’s disease= They used the scans to measure the size of the hippo.- the size correlated with memory scores so people with a bigger hippo. have better or more memory. • Logic behind PET and fMRI= Participant performs behavior/ measuring the amount of blood that flows to other places (blood flows to active areas,) etc./ 2 Friday, September 16, 2016 • PET= Positron emission tomography- radioactive tracer (the tracer is detecting the gama rays and then see the amount of increased blow flow to active areas. • Subtraction and why it is necessary= researchers look at the amount of increased blood flow and the subtract it to see whats left and see where in general the increased blood flows are. (blood is always flowing) • Difference between MRI and fMRI= (functional MRI)- detects changes in blood flow; MRI= reveals brain anatomy while fMRI= reveals brain function. fMRI also relies on subtraction. • Four problems with fMRI and PET= poor info. about timing (you don't see the increased blood flow until 5 seconds after the fact), they are expensive (using radioactive tracer which is very expensive to make), they can be dangerous to the subject because radioactivity isn't good for you (they inject you with the radioactive tracer but a very small amount), and most of all, these studies are correlative, so you cannot give specific answers (theres no for sure so you cant draw causal conclusion). • Lesions used to study brain/behavior relationships= they happen when certain damage happens to the brain and then study how it affects their brain/ behavior. • How does the fear response differ in monkeys with and without an amygdala= the amount of time it takes to actually do something because of fear (monkey and the banana picture)- with amygdala they had fear of the snake/ without it, they no longer feared the snake.= amygdala contributes to fear in the brain. • TMS// what is the advantage of TMS over lesions= (you can use humans and theres not a lasting damage/ lesions are permanent) (Transcranial magnetic stimulation) you put foil on top of a persons head and it makes a magnetic field, so it 3 Friday, September 16, 2016 disrupts processing in the brain (the magnetic field will affect processing in that specific area), this is considered a virtual lesion./ Drawbacks: its not completely precise/ specific because the brain is too deep so we aren't sure if we are reaching certain areas ( they think its only going about 1.5 inch deep) • EEG= (electroencephalogram) recording of electrical activity at scalp. (reading the tiny signals at the cap of the scalp). • Main advantage of EEG over fMRI= you can see responses down to the millisecond, however you cannot specifically tell where exactly the signals are coming from. (EEG= mainly good for timing info.) And you don't necessarily get that with fMRI. • MEG// what are its advantages over other methods, and why isn’t it used more often=(magnetoencephalography) measures the tiny magnetic fields given off by active neurons./ good info about timing and location./ Very expensive tho/ when measuring magnetic field like this you have to have all of the other magnetic draw closed off to get a true measurement of this magnetic field study. • Neurobunk= when people make premature assumptions… Note: just in case you missed them, Topic 1, 2, and 3 are also under Psych 3322 Exam 1: Brain and Behavior, so don’t miss out!! Good luck on the Test! 4


Buy Material

Are you sure you want to buy this material for

50 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Steve Martinelli UC Los Angeles

"There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

Anthony Lee UC Santa Barbara

"I bought an awesome study guide, which helped me get an A in my Math 34B class this quarter!"

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"

Parker Thompson 500 Startups

"It's a great way for students to improve their educational experience and it seemed like a product that everybody wants, so all the people participating are winning."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.