Gregory R. Lockhead | Scholars@Duke

Gregory R. Lockhead
Professor Emeritus of Psychological and Brain Sciences

Theoretical issues of cognitive processes (perception and categorization), and measurement issues of psychophysics (vision, audition, judgment, context), as they relate to questions about identification and classification (e.g., How will I recognize you the next time I see you?).

Current Appointments & Affiliations

Professor Emeritus of Psychological and Brain Sciences, Psychology and Neuroscience, Trinity College of Arts & Sciences 2006

Contact Information

242 Soc-Psych, Durham, NC 27708
Box 90086, Durham, NC 27708-0086
greg@psych.duke.edu (919) 660-5704

Background
Education, Training, & Certifications
- Ph.D., Johns Hopkins University 1965
Duke Appointment History
- Professor of Psychological and Brain Sciences, Psychology and Neuroscience, Trinity College of Arts & Sciences 1972 - 2006
- Chair, Psychology and Neuroscience, Trinity College of Arts & Sciences 1991 - 1997
- Associate Professor with Tenure, Psychology and Neuroscience, Trinity College of Arts & Sciences 1968 - 1972
- Assistant Professor, Psychology and Neuroscience, Trinity College of Arts & Sciences 1965 - 1968
Research
Selected Grants
- (89-0037) On Categorizing Sounds awarded by Air Force Office of Scientific Research 1987 - 1990
- (87-0225) On Categorizing Sounds awarded by Air Force Office of Scientific Research 1987 - 1990
- (90-0255) On Categorizing Sounds awarded by Air Force Office of Scientific Research 1987 - 1990
- (89-0486) The Perception of Structure: A Scientific Conference awarded by Office of Naval Research 1989 - 1990
Publications & Artistic Works
Selected Publications
- Journal Articles
  - Huettel, SA, and Lockhead, GR. "Range effects of an irrelevant dimension on classification." Percept Psychophys 61, no. 8 (November 1999): 1624-1645. Link to Item
  - Dragoi, V, and Lockhead, GR. "Context-Dependent Changes in Visual Sensitivity Induced by Muller-Lyer Stimuli." Vision Research 39 (1999): 1657-1670. (Academic Article)
  - Lockhead, GR, and Huettel, SA. "Isomorphisms and subjective colors." Behavioral and Brain Sciences 22, no. 6 (1999): 959-960.
  - Lockhead, G. "The bases for simple judgments are complex: Review of Sensation and Judgment by J.C. Baird." American Journal of Psychology 111, no. 2 (1998): 296-303. (Academic Article)
  - Lockhead, GR, Dragoi, V, and Wolbarsht, M. "The Microgenesis of Geometrical Illusions: Context-Dependent Changes in Visual Sensitivity and the Muller-Lyer Effect." Investigative Ophthalmology & Visual Science 38, no. S643 (1997). (Academic Article)
  - Lockhead, G. "Psycholphysical scaling methods reveal and measure context effects." Behavioral and Brain Sciences 18 (1995): 601-612. (Academic Article)
  - Lockhead, G. "Psychological measures of objects and their features: It is time for a change." Behavioral and Brain Sciences 17, no. 4 (1994): 757-772. (Academic Article)
  - LOCKHEAD, GR. "A PARALLEL VIEW OF THE HISTORY OF PSYCHOPHYSICS." BEHAVIORAL AND BRAIN SCIENCES 16, no. 1 (March 1993): 154-155. Full Text Link to Item
  - LOCKHEAD, GR. "PSYCHOPHYSICAL SCALING - JUDGMENTS OF ATTRIBUTES OR OBJECTS." BEHAVIORAL AND BRAIN SCIENCES 15, no. 3 (September 1992): 543-558. Full Text Link to Item
  - Lockhead, G. "Constancy in a changing world." Behavioral & Brain Sciences 15 (1992): 587-601. (Academic Article)
  - Lockhead, GR, and Wolbarsht, ML. "Toying with the moon illusion." Appl Opt 30, no. 24 (August 20, 1991): 3504-3507. Link to Item
  - ALLAN, LG, SIEGEL, S, TOPPAN, P, and LOCKHEAD, GR. "ASSESSMENT OF THE MCCOLLOUGH EFFECT BY A SHIFT IN PSYCHOMETRIC FUNCTION." BULLETIN OF THE PSYCHONOMIC SOCIETY 29, no. 1 (January 1991): 21-24. Link to Item
  - Seaber, J, and Lockhead, GR. "McCullough aftereffects in strabismus and amblyopia." Vision Research 29 (1989): 609-617. (Academic Article)
  - Lockhead, G. "Modeling temporal and spatial differences." The Behavioral and Brain Sciences 11 (1988): 302-303. (Academic Article)
  - Lockhead, GR, and King, M. "Assimilation and contrast: Two processes or one?." New Ideas in Psychology 6 (1988): 293-299. (Academic Article)
  - Seaber, JH, Fisher, B, Lockhead, GR, and Wolbarsht, ML. "Incidence and characteristics of McCollough aftereffects following video display terminal use." J Occup Med 29, no. 9 (September 1987): 727-729. Link to Item
  - HINSON, JM, and LOCKHEAD, GR. "MOMENTARY AND GLOBAL MAXIMIZING." BEHAVIOURAL PROCESSES 14, no. 1 (February 1987): 21-34. Full Text Link to Item
  - Lockhead, G. "Category thresholds." Fechner Day, Northampton, MA: International Society for Psychophysics (1987): 23-28. (Academic Article)
  - Wallace, WT, and Lockhead, GR. "Brightness of luminance distributions with gradual changes." Vision Res 27, no. 9 (1987): 1589-1601. Link to Item
  - Lockhead, GR, and Hinson, J. "Range and sequence effects in judgment." Percept Psychophys 40, no. 1 (July 1986): 53-61. Link to Item
  - Hinson, J, and Lockhead, GR. "Range effects in successive discrimination procedures." Journal of Experimental Psychology: Animal Behavior Processes 12 (1986): 270-276. (Academic Article)
  - Wolbarsht, ML, and Lockhead, GR. "Moon illusion: a new perspective." Appl Opt 24, no. 12 (June 15, 1985): 1844-. Link to Item
  - Bradow, F, Lockhead, GR, and Bradow, R. "Implications of perception thresholds for soiling." Proceedings of the Air Pollution Control Association, 8.5 (1985): 1-20. (Academic Article)
  - Lockhead, GR, and King, MC. "A memory model of sequential effects in scaling tasks." Journal of Experimental Psychology. Human Perception and Performance 9, no. 3 (June 1983): 461-473. Full Text
  - Reed, SK, Hock, HS, and Lockhead, GR. "Tacit knowledge and the effect of pattern configuration on mental scanning." Mem Cognit 11, no. 2 (March 1983): 137-143. Link to Item
  - Lockhead, G. "A word processor induced visual aftereffect." Human Factors Society Bulletin 26 (1983): 2-7. (Academic Article)
  - Lockhead, G. "Biologic Analogues of Image Inhancement and the Dynamics of the Visual System." Technical Report to the Southeastern Center for Electrical Engineering Education (1983): 138-. (Academic Article)
  - Lockhead, GR. "Practically perfect performance." J Acoust Soc Am 71, no. 3 (March 1982): 755-756. Link to Item
  - King, MC, and Lockhead, GR. "Response scales and sequential effects in judgment." Percept Psychophys 30, no. 6 (December 1981): 599-603. Link to Item
  - Lockhead, GR, and Byrd, R. "Practically perfect pitch." The Journal of the Acoustical Society of America 70, no. 2 (August 1981): 387-389. Full Text
  - LOCKHEAD, GR. "CONTEXT AFFECTS MEASURES OF SENSORY INTENSITY." BEHAVIORAL AND BRAIN SCIENCES 4, no. 2 (1981): 196-197. Full Text Link to Item
  - Lockhead, GR, Johnson, RC, and Gold, FM. "Saltation through the blind spot." Percept Psychophys 27, no. 6 (June 1980): 545-549. Link to Item
  - Gruenewald, PJ, and Lockhead, GR. "The free recall of category examples." Journal of Experimental Psychology: Human Learning & Memory 6, no. 3 (1980): 225-240. Full Text
  - LOCKHEAD, GR, and CRIST, WB. "MAKING LETTERS DISTINCTIVE." JOURNAL OF EDUCATIONAL PSYCHOLOGY 72, no. 4 (1980): 483-493. Full Text Link to Item
  - Staddon, JER, King, M, and Lockhead, GR. "On sequential effects in absolute judgments." Journal of Experimental Psychology: Human Perception and Performance 6 (1980): 290-301. (Academic Article)
  - Lockhead, GR. "Holistic versus analytic process models: a reply." J Exp Psychol Hum Percept Perform 5, no. 4 (November 1979): 746-755. Link to Item
  - KING, MC, CRIST, WB, and LOCKHEAD, GR. "CONTEXT AND GOODNESS IN A FOCUSING TASK." PERCEPTION & PSYCHOPHYSICS 26, no. 4 (1979): 305-311. Full Text Link to Item
  - LOCKHEAD, GR, and EVANS, NJ. "EMMERTS IMAGINAL LAW." BULLETIN OF THE PSYCHONOMIC SOCIETY 13, no. 2 (1979): 114-116. Full Text Link to Item
  - Lockhead, GR, Gruenewald, P, and King, M. "Holistic vs. attribute repetition effects in classifying stimuli." Mem Cognit 6, no. 4 (July 1978): 438-445. Link to Item
  - King, MC, Gruenewald, P, and Lockhead, GR. "Classifying related stimuli." Journal of Experimental Psychology: Human Learning & Memory 4, no. 5 (1978): 417-427. Full Text
  - Lockhead, GR, and King, MC. "Classifying intergral stimuli." J Exp Psychol Hum Percept Perform 3, no. 3 (August 1977): 436-443. Link to Item
  - Walker, CF, Lockhead, GR, Markle, DR, and McElhaney, JH. "Parameters of stimulation and perception in an artificial sensory feedback system." J Bioeng 1, no. 3 (August 1977): 251-256. Link to Item
  - HUTCHINSON, JW, and LOCKHEAD, GR. "SIMILARITY AS DISTANCE - STRUCTURAL PRINCIPLE FOR SEMANTIC MEMORY." JOURNAL OF EXPERIMENTAL PSYCHOLOGY-HUMAN LEARNING AND MEMORY 3, no. 6 (1977): 660-678. Full Text Link to Item
  - MONAHAN, JS, and LOCKHEAD, GR. "IDENTIFICATION OF INTEGRAL STIMULI." JOURNAL OF EXPERIMENTAL PSYCHOLOGY-GENERAL 106, no. 1 (1977): 94-110. Full Text Link to Item
  - WHITE, CW, LOCKHEAD, GR, and EVANS, NJ. "MULTIDIMENSIONAL-SCALING OF SUBJECTIVE COLORS BY COLOR-BLIND OBSERVERS." PERCEPTION & PSYCHOPHYSICS 21, no. 6 (1977): 522-526. Full Text Link to Item
  - Monahan, J, and Lockhead, GR. "Concerning processes involved in judging redundant two-dimensional stimuli." Proceedings of the American Psychological Association (1974). (Academic Article)
  - Gravetter, F, and Lockhead, GR. "Criterial range as a frame of reference for stimulus judgment." Psychol Rev 80, no. 3 (May 1973): 203-216. Link to Item
  - Lockhead, GR. "Processing dimensional stimuli: a note." Psychol Rev 79, no. 5 (September 1972): 410-419. Link to Item
  - Gravetter, FJ, and Lockhead, GR. "Critical response as a frame of a reference for judgment." Program of the Psychonomic Society (1972): 26-. (Academic Article)
  - Arend, LE, Buehler, JN, and Lockhead, GR. "Difference information and brightness perception." Perception & Psychophysics 9 (1971): 367-370. (Academic Article)
  - Ward, LM, and Lockhead, GR. "Response system processes in absolute judgment." Perception & Psychophysics 9 (1971): 73-78. (Academic Article)
  - Lockhead, GR. "Identification and the form of multidimensional discrimination space." J Exp Psychol 85, no. 1 (July 1970): 1-10. Link to Item
  - Ward, LM, and Lockhead, GR. "Sequential effects and memory in category judgments." Journal of Experimental Psychology 84 (1970): 27-34. (Academic Article)
  - Gravetter, FJ, and Lockhead, GR. "Criterial dispersion's and the stimulus range." Proceedings 78th Annual APA Convention (1969): 41-42. (Academic Article)
  - Lockhead, GR, and Ward, LM. "Memorial processes and category judgments." Psychonomic Bulletin 15 (1969). (Academic Article)
  - Holland, MK, and Lockhead, GR. "Sequential effects in absolute judgments of loudness." Perception & Psychophysics 3 (1968): 409-414. (Academic Article)
  - Lockhead, GR, and Khokhlov, N. "Multidimensional discriminability and salience of attributes." Proceedings of the Eastern Psychological Association (1968): 132-. (Academic Article)
  - Lockhead, G. "Form of redundancy and identification of three-dimensional stimuli." Psychonomic Bulletin 1 (October 1967): 2-. (Academic Article)
  - Crovitz, HF, and Lockhead, GR. "Possible monocular predictors of binocular rivalry of contours." Perception & Psychophysics 2, no. 2 (1967): 83-85. Full Text
  - Lockhead, GR. "Effects of dimensional redundancy on visual discrimination." J Exp Psychol 72, no. 1 (July 1966): 95-104. Link to Item
  - Lockhead, G. "Visual discrimination and methods of presenting redundant stimuli." Proceedings of the American Psychological Association (1966): 67-68. (Academic Article)
  - Chapanis, A, and Lockhead, GR. "A test of the effectiveness of sensor lines showing linkages between displays and controls." Human Factors 7, no. 3 (June 1965): 219-229. Full Text
  - Lockhead, G. "Repetition redundancy and visual form discrimination." Psychonomic Science 3 (1965): 319-320. (Academic Article)
  - Lockhead, G, and Klemmer, ET. "Productivity and errors in two keying tasks: A field study." Journal of Applied Psychology 46 (1962): 401-408. (Academic Article)
  - Lockhead, G. "Methods of presenting paired associates." Journal of Verbal Learning and Verbal Behavior 1 (1962): 62-65. (Academic Article)
  - LOCKHEAD, GR. "A re-evaluation of evidence of one-trial associative learning." Am J Psychol 74 (December 1961): 590-595. Link to Item

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Education, Training, & Certifications

Duke Appointment History

Selected Grants

Selected Publications

Journal Articles