# Register now to access 7 million high quality study materials (What's Course Hero?) Course Hero is the premier provider of high quality online educational resources. With millions of study documents, online tutors, digital flashcards and free courseware, Course Hero is helping students learn more efficiently and effectively. Whether you're interested in exploring new subjects or mastering key topics for your next exam, Course Hero has the tools you need to achieve your goals.

3 Pages

### problemset2

Course: PSYC 6274, Fall 2009
School: Maple Springs
Rating:

Word Count: 151

#### Document Preview

6274 PSYC Laboratory methods of perceptual psychology Winter 2009 Problem set #2 1. Write a function called measurecsf.m that measures a contrast sensitivity function. Measure 2AFC contrast thresholds at spatial frequencies 0.5, 1, 2, 4, 8, and 16 cycles/degree. Use a stimulus duration of 250 ms, an interstimulus interval of 500 ms, and a scale constant of two wavelengths. Measure each 71% threshold in a...

Register Now

#### Unformatted Document Excerpt

Coursehero >> Maryland >> Maple Springs >> PSYC 6274

Course Hero has millions of student submitted documents similar to the one
below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.

Course Hero has millions of student submitted documents similar to the one below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.
6274 PSYC Laboratory methods of perceptual psychology Winter 2009 Problem set #2 1. Write a function called measurecsf.m that measures a contrast sensitivity function. Measure 2AFC contrast thresholds at spatial frequencies 0.5, 1, 2, 4, 8, and 16 cycles/degree. Use a stimulus duration of 250 ms, an interstimulus interval of 500 ms, and a scale constant of two wavelengths. Measure each 71% threshold in a separate block of 200 trials with a 1-up 2-down staircase. Take the observer's initials as an input argument, and save data trial-by-trial in a file named csf_jfk.txt, where "jfk" is replaced by the observer's initials. Without a high-contrast-resolution video card, you will not be able to show gratings at threshold on a blank background, so show all stimuli in Gaussian white noise with a pixelwise standard deviation of 20...

Find millions of documents on Course Hero - Study Guides, Lecture Notes, Reference Materials, Practice Exams and more. Course Hero has millions of course specific materials providing students with the best way to expand their education.

Below is a small sample set of documents:

Maple Springs - PSYC - 3270
Attention All current Psychology Majors:The online application for the Specialized Honours program in Psychology (120 credit BA or BSc) opens April 1st. The primary focus of the Specialized Honours program is to enable students to become more compet
Maple Springs - PSYC - 6273
Richard Murray York UniversityMATLAB OVERVIEW1. Environment - command window accepts commands - workspace records variables - save saves variables to disk - clear clears variables - current working directory is default directory for commands and o
Maple Springs - PSYC - 6273
PSYC 6273 Computer programming for experimental psychology Fall 2008Lecture 2 workshop1. Write a function bubblesort.m that implements the bubblesort algorithm, as described in class. 2. Write a script mreport.m that prints a list of all the M-fi
Kentucky - BULL - 0506
University FacultyUniversity Faculty351COLLEGE OF AGRICULTURE AND SCHOOL OF HUMAN ENVIRONMENTAL SCIENCESM. Scott Smith, dean AGRICULTURAL COMMUNICATIONSCarla G. Craycraft, directorCarla G. Craycraft, extension professor, Ph.D., Oklahoma Stat
Washington - ECON - 300
Econ 300-FWinter 2009, Edwin WongEcon 300 - Intermediate Microeconomics Homework #6, Due March 3, 2009Answer the following questions and subparts. Explain all answers fully. 1. Short Run Prot Maximization Suppose that a rms cost function is give
Kentucky - BULL - 0203
324University FacultyUniversity FacultyCOLLEGE OF AGRICULTUREM. Scott Smith, dean AGRICULTURAL COMMUNICATIONSCarla G. Craycraft, directorCarla G. Craycraft, extension professor, Ph.D., Oklahoma State, 1981 Kim Ragland, associate extension pr
Washington - ECON - 300
Econ 300-FWinter 2009, Edwin WongEcon 300 - Intermediate Microeconomics Chapter 11 Notes - MonopolyIn this chapter 8 we studied the first of the numerous supply/demand models. In chapter 11, we deviate from the competitive model, but relaxing as
Washington - EC - 200
DARTMOUTH COLLEGE Department of Economics Economics 1 First Hour Examination Suggested Answers 1. a. (20 minutes, 30 points) Economic Costs (6 points) For a simple model economy with only two goods, X and Y, show on a graph a production possibilities
Naval Academy - HW - 211
Hmwk 19 Introduction to Graphical User Interfaces (GUI ) Tutorial Due: Beginning of class on Tuesday 7 AprilConcepts Graphical User Interfaces (GUIs) Using the Java API JOptionPane JFrame JLabelGUI eventsWindowListenersOverviewThis lab
Mitchell - BU - 126
BU126 Interpersonal Skills Group Project, Spring, `07 Objective: To provide a creative opportunity for students to consider and present their viewpoint of the ideal workplace based on concepts and discussions held during the course thus far. The Phot
Naval Academy - SI - 204
SI204 Spring 2009 Programming Project 3 Will You Be My Friend?Executive Summary This project is going to use linked lists to explore the connections of people and their mutual friendships. Using linked lists you will finish a partially completed pro
Coastal Carolina University - MATH - 242
MATH 242Poker Hands1Poker HandsSeptember 26, 2007A standard deck of 52 cards contains four dierent suits: clubs, diamonds, hearts, and spades. Each suit contains 13 dierent face values: 2, 3, .,10, Jack, Queen, King, Ace. Poker is a popular car
Coastal Carolina University - MATH - 320
Coastal Carolina University - MATH - 242
December 7, 2007 | MATH 242Modeling for Scientists1Study GuideFinal Exam: 1. The Final Exam will be Thursday, December 13 at 11 am in Wall 110. As discussed in class, if Thursday is a really bad day for you to take the exam, you may make arrange
Coastal Carolina University - MATH - 242
MATH 242 / Lab 5: A Parametric Model of Daylight Data1Lab 5: A Parametric Model of Daylight DataSeptember 6, 2007Objectives Read data from a file and plot the data points. Use the data to determine parameter values for the parametric model y
Coastal Carolina University - MATH - 320
Coastal Carolina University - CHEM - 321
Equilibrium Activity Name _ Co-Worker _ Learning Objectives: 1. To carry out calculations involving equilibriums. 2. To determine appropriate use of significant equations involving equilibrium. Procedure: For this activity, make sure to work in pairs
Naval Academy - SI - 475
Simple Model Layer: Maps and Map MakingThe attribute layer can on its own make a robot behave in reasonably clever ways but there are some things it just can't do, like find efficient paths from one place to another, or determine if the robot can m
Naval Academy - SI - 475
Simple Model II: Path PlanningOnce a map has been built (or provided) to the robot, the next question is what to do with it. Well just like the maps you use, most likely the robot will want to use the map to navigate, that is find a path from one l
Cal Poly Pomona - MATH - 04747
Math 107. Rumbos Assignment #16Fall 20081Due on Friday, November 7, 2008 Read Section 3.1 on The Calculus of Curves, pp. 5365, in Bressoud. Read Section 5.2 on Line Integrals, pp. 113119, in Bressoud. Do the following problems 1. Consider a por
Washington - OC - 583
OC583 Isotope Biogeochemistry Paul Quay, Rm 417, 5-8061, pdquay@u. Meets Tues and Thurs at 12:00 1:20 in Rm 425 OSB Lectures, problem sets, paper discussions Bring lecture notes and figures to class Grade: midterm, problem sets and project (ei
Washington - CHEM - 530
Naval Academy - IT - 360
The News-Herald - News - 03/19/2007 - Two Mentor employees fired, one disciplinedPage 1 of 203/19/2007Two Mentor employees fired, one disciplinedBy: John Arthur Hutchison JHutchison@News-Herald.comWorkers accused of misusing police LEADS sys
Naval Academy - IT - 360
David M. Kroenke'sIntroduction Database processing and document processing need each other. Database processing needs document processing for transmitting database views. Document processing needs database processing for storing and manipulating
Kentucky - JAT - 520
Mass society and the belief in powerful mediaIndustrial revolution Began in England in the latter part of the 18th century Development of factory system Textiles Mechanization Entrepreneurs Enclosures Mercantile classManufacturing Manufac
UNLV - FIN - 303
FIN 303 (001) Intermediate Managerial Finance Spring 2008 Professor: Tomas Mantecon Prieto Office: BEH 520 Office Phone: 895-2526 Office Hours: 2:20 3:50 Mondays and Wednesdays, and by appointment e-mail Address: tomas.mantecon@unlv.edu Web page htt
Naval Academy - IT - 360
IT360 Lab 9 Locks and Transactions SOLUTION IT360 Lab 9 Locks and Transactions SOLUTION DUE: April 21, 2009, BEFORE start of labThis lab should get you familiarized with transactions and concurrency-related problems. The first part of this lab requi
Kentucky - JAT - 520
The media and realityReflection or construction?Traditional thinking on media and reality Scholars have looked at how well the media reflect reality The focus has been on the news and how good a job it does in presenting a correct picture of the
Kentucky - JAT - 300
Developing hypothesesCorrelation versus causation What kind of relationship are you proposing? Causal theory is preferred It is more useful and informative Correlation-two things are related They vary together (knowing someone's score on one
Kentucky - JAT - 520
Emotion and electronic mediaWhat is emotion? Robert Masters makes the following distinctions between affect, feeling and emotion: &quot;As I define them, affect is an innately structured, noncognitive evaluative sensation that may or may not register i
Kentucky - JAT - 520
Reality and its relationship to mediaPresence, identification, realismHow do we think about reality? It seems so obvious that we never really give it much thought Two major concerns about reality are: Our theory of it (ontology) How we come to
UNLV - CEE - 301
Autodesk MapGuide EnterpriseWorking with ResourcesAutodesk MapGuide Enterprise software has a powerful API (application programming interface) for manipulating resources such as feature and drawing sources, maps, layers, and layouts. Using the Re
Mansfield - FACULTY - 2202
Inseln im strmischen Meer = SS1 2 34 657 8 10 12 13 14 16 17 18 19 20 15 11 921222324Waagerecht2. hectare (=10,000 m2, 2.47 acres) 5. stall, stable, barn 6. small item; snack; trifle 7. to spend the night 11. to step onto/into, ent
Mansfield - FACULTY - 2202
Seewind II = SS1 2 34 6 7 859 10 111213141516 18 191720212223 24 25 26272829303132Waagerecht1. harmful(ly), damaging 4. consumption, use 5. renewable 7. electric consumption 9. movement, initiative 10. harmf
Mansfield - FACULTY - 1101
Datum Mo 5.11. Mi 7.11. Fr 9.11.Arbeit in der Klasse THEN DO (pages in Lernbuch covered) finish Test 3; 4.1 S. 50-51 4.1 S. 51-53 Vocab Quiz 4.1; 4.2 54-55Interaktive CD (IA) (do IA first) IA 4.1 printout IA 4.2 1,2 IA 4.2 2 printout;Lernbuch
Kentucky - PHY - 361
Wave Particle DualityLight behaves as both a wave and a particle at the same time! PARTICLE properties WAVE properties individual interaction dynamics: F=ma mass quantization position(time) localized mass spin COMMON properties:
Kentucky - PHY - 160
PHYSICS 160-002SPRING 2009Modifications to Physics by Inquiry, Volume 1, Astronomy by Sight: The Sun, Moon, and Stars, 1 &amp; 45 (pp.325354)CHECKs: 1.5 1.7 4.6 5.4 5.5Section 1. Sun shadows (pp.325330)1) Start on page 325 of Volume 1 of McDermo
Kentucky - PLS - 210
Light regulation of plant developmentLightPea (Pisum sativum) seedlingsDarkFig. 15-19a, p. 251Light and Plant Development Light most important environmental factor influencing plant development Light has both positive as well as negative
Kentucky - GMSWAN - 575
Super Multiplication Quizzer (patent pending)X=Super Picture Viewer
Washington - COM - 340
University of New York in Prague - CI - 1150
CIS 1150 Event Timeline for Internet: Launch of Sputnik by Russia (1957) The Challenger disaster (1984) Gulf War (1991) eBay/Amazon.com (1995) Napster copyright cases and eventual shutdown (restart as subscription service later in 2001) (1999 2001)
Washington - COM - 340
Washington - LIS - 507
Patricia A. Gomez LIS 507 WIN 03FORMAT PRESERVATION FACT SHEET1. Format name(s) Photographic slides and transparencies 2. Brief history of format. Photographic slides were first introduced in 1905 (Zanish-Belcher, 5), but were available on a comm
North-West Uni. - CS - 211
CS 211, Winter 2004 Lab 1 Handin InstructionsBrian M.Dennis, Instructor Bin Lin, Tom Lechner, Teaching AssistantsHow to Turn In Lab 1Tom will be the coordinator for lab 1. You will mail your submission to him at: t-lechner@northwestern.edu. If yo
Stanford - CS - 262
UNLV - MATH - 124
College AlgebraMath 124 Section 1Summer 2009 (May 11 May 29) Course SyllabusCLASS INFORMATION: Course Number: Math 124 Section 1 Class Times: MTWRF 2:00 4:40 Class Location: WRI C-303 INSTRUCTOR INFORMATION: Name: Dr. Bellomo Office Location: C
UNLV - MATH - 122
Math 122Chapter 6 Review Solutions1.3 6 = 3(10) = 6(5), 30 = 30 5 102.756 12 63 63 7 9 9 = = = = 1176 12 98 98 7 14 14 5 + 5 10 1 = = 9 + 11 20 23. 4.23 11 = 4 4 4 11multiplicative inverse is5.4 21 4 36 144 48 = = = 7 36 7
Kentucky - PHR - 961
Drug Induced Liver DiseaseThomas S. Foster, Pharm.D. Integrated Therapeutics PHR 961Introductionz Drug-induced liver disease encompasses a broad spectrum of hepatic lesions, including both acute and chronic disorders. z Liver injury may occur a
St. Mary's CA - PHYS - 003
Exam 3 review sheetFriday May 8. 8:10-10:10am or 12:30-2:30pm1 A 3&quot;x5&quot; card of notes (both sides) and a calculator are allowed. Present clear and complete answers. Show your work in some coherent fashion. Unjustified answers will earn no points. Wel
St. Mary's CA - PHYS - 003
Ch 22 solutions22.7. Model: Two closely spaced slits produce a double-slit interference pattern.Visualize: The interference pattern looks like the photograph of Figure 22.3(b). Solve: The dark fringes are located at positions given by Equation 22.9
Kentucky - STA - 635
Due 5/6/2009 12:00 noonVersions of the Stanford heart transplant data:1. Data up to 4/1/1974 (103 patients). (SAS book)2. Data up to 2/14/1980 but only include those who did receive a transplant (184 patients, in R stanford2).3. Data up to
Kentucky - MA - 322
MA322-021 Syllabus Matrix Algebra &amp; Applications 2nd Summer Session 2008 Instructor: Joshua Roberts Patterson Office Tower 718 859-257-6806 http:/www.ms.uky.edu/~jroberts jroberts@ms.uky.edu Office Hours: M, W, Th 1:30-2:30pm and by appointment. Chec
Washington - ASTRO - 190
Mon May 4 ofce hrs today 3:30-5pm Todays topic: astrometry + direct imagingexoplanet detection techniques Todays key themes/questions:10.0 Exoplanet detection technique: astrometry Defn:exoplanets gravitationally interact with their host st
Washington - ASTRO - 190
Wed April 29 office hrs today 3:30-5pm Today's topic: Microlensing + transit photometryexoplanet detection techniques Today's key themes/questions: What is microlensing? What are the strengths/ weaknesses of using microlensing to detect exoplan
Washington - ASTR - 323
ASTR 323 Spring 2009Solutions to Problem Set 4 (24 points total)Due: April 28, 2009 (CO = Carroll &amp; Ostlie) 1. (3 pt) CO 25.14 Solution: The radial equation is = R Rm = AR sin t (25.34). At the midpoint of the excursion, R = Rm , so t = 0 or . At
Glasgow Caledonian University - CS - 252
From: ohmega@cbv.netNewsgroups: cult.cbv.discussMessage-ID: &lt;2C9F8CC7.3ED3@cbv.net&gt;Date: 22 Jun 19106 06:44:29X-Organization: Cult of the Bound VariableSubject: Programming in Two DimensionsDear cult.cbv.discuss:I'm pleased to announce a ne
Glasgow Caledonian University - CS - 252
From: ohmega@cbv.netNewsgroups: cult.cbv.discussMessage-ID: &lt;67BC2AC4.F4C0@cbv.net&gt;Date: 19 Jul 19106 17:21:07X-Organization: Cult of the Bound VariableSubject: Ray TracingDearest friends,I have discovered the most amazing application of th
Glasgow Caledonian University - CS - 260
Comp 260: Advanced Algorithms Tufts University, Spring 2009Prof. Lenore Cowen Scribe: Andrew FoxLecure 11: Introduction to Linear Programming1A motivating example problemEnergy/serve Protein/serve Calcium/Serve Cost/serve 110 kcal 4g 2 mg 3c
Caltech - JOVIANPOLA - 584
Caltech - JOVIANPOLA - 584
Caltech - JOVIANPOLA - 584
7 &gt;15R 6 5 4 3 2 1 0 1*K 3*K 10*K 30*KIntensity (R)6065 Latitude (degrees)70