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

PSY 1010, Sensation and Perception Week 4

by: Madie Ritter

PSY 1010, Sensation and Perception Week 4 1010

Marketplace > Ohio University > Psychology (PSYC) > 1010 > PSY 1010 Sensation and Perception Week 4
Madie Ritter
View Full Document for 0 Karma

View Full Document


Unlock These Notes for FREE

Enter your email below and we will instantly email you these Notes for Psychology

(Limited time offer)

Unlock Notes

Already have a StudySoup account? Login here

Unlock FREE Class Notes

Enter your email below to receive Psychology notes

Everyone needs better class notes. Enter your email and we will send you notes for this class for free.

Unlock FREE notes

About this Document

These notes cover chapter 4, sensation and perception.
Sandra Hoyt
Class Notes
Psychology, Intro to Psychology




Popular in Psychology

Popular in Psychology (PSYC)

This 3 page Class Notes was uploaded by Madie Ritter on Thursday September 29, 2016. The Class Notes belongs to 1010 at Ohio University taught by Sandra Hoyt in Fall 2016. Since its upload, it has received 44 views. For similar materials see Psychology in Psychology (PSYC) at Ohio University.


Reviews for PSY 1010, Sensation and Perception Week 4


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: 09/29/16
Week 4: Chapter 4 SENSATION AND PERCEPTION 1. SENSATION The physiological process through which you are aware of external stimuli A. Boundaries of sensations i. Absolute threshold: minimum amount of stimulus necessary for detection 50% of the time 1. We can see a candle flame that is 30 miles away on a dark clear night 2. We can hear the ticking of a wristwatch 20 feet away in a quiet room 3. We can taste 1 teaspoon of sugar in 2 gallons of water 4. We can smell 1 drop of perfume in a typical 3 room apartment ii. Just noticeable difference: amount of difference between two stimuli necessary for detection of difference 1. Differences at lower levels are more noticeable than the same differences at higher levels of stimuli 2. PERCEPTION The physiological process of interpreting those stimuli 3. THREE PROCESSES IN SENSATION AND PERCEPTION A. Translation: turning external stimulation into a neural message i. Translating visual images 1. Structure of the eye a. Properties of light: wavelength and intensity b. Receptor cells i. Rods: detect information about intensity (brightness) ii. Cones: detect information from the wavelengths of light (color) iii. A message through the eye moves from the receptor cells to bipolar cells to the ganglion cell to the optic nerve 2. Problems in visual translation a. Color blindness and night blindness 3. How do we see color? a. Trichromatic theory i. 3 types of cones detect 3 primary colors 1. red, green, blue b. Or the opposite: processing theory i. 6 primary colors are detected in pairs 1. red and green, blue and yellow, and black and white ii. color receptors work in opposing fashion c. rebound effect produces after images B. Extraction: breaking the message down into basic components for processing i. Many parts of the brain get the information through a process 1. The thalamus gets 50% of visual signals a. i.e. detail, color, brightness, movement, and depth 2. The occipital lobe is the next step a. Feature detectors: single types of cells responsible for specific information C. Interpretation: re-combining all the processed information i. Building a stable understanding of the stimulus or event ii. Knowledge, expectations, and rules impact our interpretations iii. Gestalt rules for organizing information 1. Figure and ground (foreground and background) 2. Proximity: objects near each other tend to be grouped together 3. Similarity: items that are similar are grouped 4. Closure: finishing something your eyes do not fully see 5. Continuity: lines are seen as following the smoothest path 6. Common fate link: objects moving are grouped 4. OTHER SENSES A. Hearing i. Receptor cells: hair cells in cochlea ii. Amplitude: loudness, frequency, pitch 1. Wave of sound activates hair cells, peak at certain place corresponding to certain frequency 2 2. The number of hair cells that are stimulated relates to information about loudness iii. Hearing problems 1. Problem with the eardrum has to do with amplitude 2. Problem with the cochlea has to do with frequency 3. Sounds above 85 decibels can be harmful a. A person whispering is about 25 decibels b. A normal conversation is about 60 decibels c. A baby’s cry is about 90 decibels B. Smell i. Olfactory receptors ii. Messages sent to amygdala and hippocampus iii. Anosmia: complete loss of sense of smell C. Taste i. Gustatory cells activated by food molecules ii. Many flavors are a combination of taste and smell 1. Synesthesia: intermingling of senses iii. Supertasters: can distinguish flavors exceptionally well D. Touch i. Sensitivity to touch ii. The what and where systems of touch 1. Pain a. A-delta fibers: throbbing pain b. C fibers: (quick pain) c. Gate control theory of pain: there is a certain point where your body experiences too much pain and no longer lets you experience pain after that point 2. Kinesthesis: sense of body position and movement 3. Vestibular sense: motors your heads movement and your balance 3


Buy Material

Are you sure you want to buy this material for

0 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!"

Jennifer McGill UCSF Med School

"Selling my MCAT study guides and notes has been a great source of side revenue while I'm in school. Some months I'm making over $500! Plus, it makes me happy knowing that I'm helping future med students with their MCAT."

Jim McGreen Ohio University

"Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."

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.