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

Chapter 7 Part 2

by: Alex Buckley

Chapter 7 Part 2 35184

Alex Buckley

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

Second half of Chapter 7 Lecture
Intro to Physiological Psych
Dr. Bursten
Class Notes
psych, 110, Biology, anatomy
25 ?




Popular in Intro to Physiological Psych

Popular in Psychology (PSYC)

This 5 page Class Notes was uploaded by Alex Buckley on Sunday October 9, 2016. The Class Notes belongs to 35184 at Santa Barbara City College taught by Dr. Bursten in Fall 2016. Since its upload, it has received 3 views. For similar materials see Intro to Physiological Psych in Psychology (PSYC) at Santa Barbara City College.

Similar to 35184 at SBCC

Popular in Psychology (PSYC)


Reviews for Chapter 7 Part 2


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: 10/09/16
Connections from the Brain to the Spinal Cord - Messages from the brain must reach the medulla and spinal  cord to control muscles  - Corticospinal tracts are paths from the cerebral cortex to  the spinal cord - Two such tracts: o Lateral (to the side) corticospinal tract  o Medial (to the middle) corticospinal tract Lateral Corticospinal Tract - Fine, controlled movements - A set of axons from the primary motor cortex, surrounding  areas, and red nucleus to the spinal cord o Controls movement in peripheral areas (hands and  feet) o Red nucleus: a midbrain area with output mainly to  the arm muscles  - Axons extend from one side of the brain to the opposite  side of the spinal cord, and control opposite side of the  body  Medial Corticospinal Tract  - General, gross movements  - A set of axons from many parts of the cortex  o Reticular formation, midbrain tectum, and vestibular  (balance control) nucleus  - Vestibular nucleus is a brain area that receives information  from the vestibular system  Axons and the Spinal Cord - Axons go to both sides of the spinal cord o Allows control of muscles of the neck, shoulders and  trunk o Enables movements such as walking, turning,  bending, standing up, and sitting down  Cerebellum  - Coordination of movement  - Learned motor habits  o E.g. brushing your teeth, swinging a bat, playing a  piano o Once learned, it is coded in the cerebellum and can be  preformed without thinking  - Cerebellar damage or alcohol intoxication many lead to  deficits in rapid ballistic movements o Ballistic movement: only one trajectory  o Guided movement: modified by peripheral  movement, cognitive desires/thoughts - Purkinje cells are the most numerous and are more  metabolically active than other cells o This makes the cerebellum more sensitive to stress  than other areas o Short and long term physical stress, e.g. from boxing  or football cause cerebellar ataxia, the “punch­ drunk” or “drunken sailors gait” - Linked to habit formation, timing, certain aspects of  attention, and other psychological functions as well as  motor functions - Receives input from the spinal cord, from each of the five  senses via cranial nerve nuclei, and from the cerebellar  cortex - Action potentials of parallel fibers (axons parallel to one  another) excite one Purkinje cell (very flat cells in  sequential planes) after another - Purkinje cells inhibit cells in the interior nuclei of the  cerebellum and the vestibular nuclei in the brain stem Basal Ganglia  - A group of subcortical structures in the forebrain o Caudate nucleus  May be involved in OCD  Involved in mediation of “pleasurable” effects of  high sugar/fat foods o Putamen—may be involved in motor synchronization  to the auditory stimuli—e.g. dancing - Brake hypothesis o Principal neurotransmitters are ACh (Acetylcholine),  GABA (Gamma­Amino Butyric acid) and dopamine o Overall effect on thalamus is inhibitory o To sit still, you must “put on the breaks” on all  movements except those reflexes that maintain an  upright posture o To move, you must apply a break to some postural  reflexes and release the brain on voluntary movement  o So basal ganglia select movement by ceasing  inhibition  o Small disturbances can throw the whole system out of  whack, often in unpredictable ways. Deficits tend to  fall into one of two categories  Presence of extraneous unwanted movements  (Tourette’s)  An absence or difficulty with intended  movements (reaching for water bottle and  missing it)


Buy Material

Are you sure you want to buy this material for

25 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

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!"

Allison Fischer University of Alabama

"I signed up to be an Elite Notetaker with 2 of my sorority sisters this semester. We just posted our notes weekly and were each making over $600 per month. I 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."

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.