200.211 Sensation and Perception

 

Class meets:

TBA

 

Instructor:
Steven Yantis
Office:
Ames 228
Phone:
410-516-5328
email:
yantis@jhu.edu
Office Hours:
TBA
 

V. Kandinsky, Composition viii (1923)



Text: Goldstein, E. B. (2007). Sensation and Perception (7th Edition). Belmont, CA: Thomson Wadsworth. Click on the book title to go to the book's web site for supplemental material, including review quizes.

ISBN: 0534558100

 


Course Objectives

How do you use your senses to obtain reliable and useful information about what is happening around you? How do you perceive what objects are where from the light reflected from surfaces? How do you identify events by listening to sounds? How do you perceive the texture of objects via touch? How do smell and taste together provide information about flavor? What can illusions tell us about how perception normally works?  In the figure at left, for example, the contours bounding the bent triangle do not exist in the image, yet we experience them as if they did.  What's going on?    

We will look at behavior (how does an outfielder catch a fly ball?) and neurophysiological evidence (what parts of the brain are most active when we view a spot of red light?) We will explore the anatomical structure of the various sensory systems (how is light transformed into a neural signal within the eye?); the functional architecture of the perceptual parts of the human brain; psychophysics (the quantitative measurement of perceptual experience); form, depth, and motion perception; color vision; visual attention; perceptual memory; auditory perception, and the senses of touch, taste, and smell. We'll also talk about conscious awareness.

Exams and Grading

Readings will come from the text and from additional readings assigned for each lecture. You should do all the readings, because the lectures are meant to supplement and expand on the readings, and not replace them. You should come to lectures, because the lectures will contain material not in the readings that will appear on the exams. Your grade will depend on your performance on quizzes, three examinations, and two short papers.

Mini-Reviews

You will be required to submit two mini-reviews of approved topics in sensation and perception [e.g., synesthesia (a phenomenon in which people "taste colors"), auditory hallucinations, etc.] . These are 3-4 page papers (typed, double spaced) each reviewing a pair of recent empirical research articles. Click on the following link to see the guidelines.

Mini-Review Guidelines

Quizzes

There will be ten 15-minute quizzes given on Wednesdays (in weeks without exams) covering the material for that week. Your final quiz score will be based on your top eight quiz scores. There will be no makeup quizzes for any reason. The quizzes will include both multiple choice and short answer questions.

Exams

There will be two midterm exams lasting 50 minutes and one final exam lasting two hours and scheduled for the final exam period for this class. The exams are cumulative and can include questions from any part of the course. The exams will have both multiple-choice and essay questions. I will provide study questions before each exam; some of these study questions will appear on the exam, so it is well worth your time to prepare answers to these questions. The exams are closed book and closed notes.

There will be no makeup exams. If you missed an exam due to a documented illness or injury, then you will be required to write a 10-15 page paper to make up the exam. If you do miss an exam, contact me as soon as possible after the missed exam, with the documentation concerning your absence. You must contact me no later than one week after the missed exam.

Grades

Your final score will be based on your performance on the quizzes (25%), the midterm exams (15% each), the final exam, (30%), and two mini-reviews (15%).

A final weighted total that is less than 50% of the highest possible score will result in a failure. It will not be possible to raise your grade at the end of the term by writing a paper or carrying out some other additional work. There is no "senior option" in this course.

Research Experience for Extra Credit

It will be possible to earn extra credit for participating in psychology experiments during the term. You earn one percentage point toward your final grade for each research experience unit you earn, up to a limit of one-half letter grade increase (e.g., from B to B+). If you earn four research experience credits, you are guaranteed a one-half letter grade increase.

Go to the Research Participation Website and click on read.me to learn how to sign up for experiments.

Academic Ethics

The Johns Hopkins University has adopted policies concerning academic ethics and the consequences of cheating.

Cheating is wrong. Cheating hurts our community by undermining academic integrity, creating mistrust, and fostering unfair competition. The University will punish cheaters with failure on an assignment, failure in a course, permanent transcript notation, suspension, and/or expulsion. Offenses may be reported to medical, law or other professional or graduate schools when a cheater applies.

Violations can include cheating on exams, plagiarism, reuse of assignments without permission, improper use of the Internet and electronic devices, unauthorized collaboration, alteration of graded assignments, forgery and falsification, lying, facilitating academic dishonesty, and unfair competition. Ignorance of these rules is not an excuse.

You may collaborate with other students when you are studying, reviewing lectures, and readings, etc. You may not collaborate on your examinations or written assignments. If you have questions about this policy, please ask the instructor.

On every exam, you will sign the following pledge: "I agree to complete this exam without unauthorized assistance from any person, materials or device. [Signed and dated]"

For more information, see the guide on "Academic Ethics for Undergraduates" and the Ethics Board web site


Lecture Outline

Note: This schedule is subject to change.

 

 

 

 

 

 

 

 

*For readings designated Gx, the x stands for a chapter in Goldstein. (See bibliography below).

Wk Date Topic Reading
1   Introduction, Psychophysics, Detection Theory G1; Appendix, Signal Detection Theory demo
2   Visual Neurophysiology G2
3   Retina and Neural Circuits  G3, Cornsweet (1970)
4  

Neural Architecture of Vision
Mini-Review 1 Topic Due

G4
5  

Cognitive Neuropsychology
Functional Neuroimaging

Coltheart (2002), Courtney & Ungerleider (1997)
6   Midterm EXAM 1  
7  

Object Perception
Attention

G5, G6
8   Color Vision
Mini-Review 1 Due
G7
9   Depth and Size Perception G8
10  

Midterm EXAM 2
Mini-Review 2 Topic due

   

Motion Perception
Perception and Action

G9, G10

11  

Auditory Physiology
Pitch Perception

G11
12   Auditory Scene Analysis
Speech Perception
G12, G13
13   Touch
Taste and Smell
Mini-Review 2 due
G14, G15
    Final Exam, date and time TBA  

 


Additional Readings:

Coltheart, M. (2002). Cognitive Neuropsychology (**NOTE. pp. 139-155 ONLY**). In J. Wixted and H. Pashler, Stevens' Handbook of Experimental Psychology, 3rd Edition (Vol. 4: Methodololgy in Experimental Psychology). New York: Wiley.

Cornsweet, T. (1970). Visual Perception. New York: Academic Press. Chapter II: The Experiment of Hecht, Schlaer, and Pirenne. This chapter provides a detailed description of a famous psychophysical experiment illustrating several important aspects of early vision.

Courtney, S. M., & Ungerleider, L. G. (1997). What fMRI has taught us about human vision. Current Opinion in Neurobiology, 7, 554-561. A brief review of recent studies using functional magnetic resonance imaging to reveal the functional architecture of the human visual system.