Publications

Total =113 

Articles in blue font may be downloaded.  I believe none violate copyright, but limit to one copy, please

Articles in Scholarly Journals

01. Rollins, J.B., Thomas, R.K., & Remley, N. (1965).  An investigation of drive summation in a water runway.  Psychonomic Science, 3, 183- 184.

02. Thomas, R. K., Jr., & Peacock, L. J. (1965). A method for measuring brain lesions. Psychonomic Science, 3, 184.

03. Thomas, R. K., Jr. (1966). Immediate and subsequent effects of brain damage in rats. Journal of Comparative and Physiological Psychology, 62, 472-475.

04. Peacock, L. J., Hodge, M. H., & Thomas, R. K., Jr. (1966). Ultrasonic measurements and automatic analysis of general activity in the rat. Journal of Comparative and Physiological Psychology, 62, 284-288.

05. Barge, E. M., & Thomas, R. K., Jr. (1969). Conditional discrimination learning in the squirrel monkey. Psychonomic Science, 15, 161 -162.

06. Thomas, R. K., Jr. (1969). The influence of Sernylan on the EEG and averaged evoked potential in the squirrel monkey. Laboratory Primate Newsletter, 8, 19-21.

07. Noble, C. S., & Thomas, R. K.7 Jr. (1970). Oddity learning in the squirrel monkey. Psychonomic Science, 19, 305-307.

08. Thomas, R. K., Jr. (1970). Mass function and equipotentiality: A reanalysis of Lashley's retention data. Psychological Reports, 27, 899-902. 

09. Davis, J. W., Thomas, R. K., Jr., & Adams, H. E. (1971). Interactions of scopolamine and physostigmine with ECS and one-trial learning. Physiology and Behavior, 6, 219-222.

10. Mitcham, J. C., & Thomas, R. K., Jr. (1972). Effects of substantia nigra and caudate nucleus lesions on avoidance learning in rats. Journal of Comparative and Physiological Psychology, 81, 101-107.

11. Thomas, R. K., & Boyd, M. G. (1973). A comparison of Cebus albifrons and Saimiri sciureus on oddity performance. Animal Learning and Behavior, 1, 151-153.

12. Thomas, R. K., & Hill, A. S. (1973). The caudate nucleus and avoidance learning: A reevaluation. Bulletin of the Psychonomic Society, 1, 346-348.

13. Mendoza, J. E., & Thomas, R. K. (1975). An investigation of the effects of posterior parietal and frontal neocortical lesions in the squirrel monkey. Journal of Comparative and Physiological Psychology, 89, 170- 182.

14. Thomas, R. K., & Weir, V. K. (1975). The effects of lesions in the frontal or posterior association cortex of rats on maze III. Physiological Psychology, 3, 210-214

15. Weir, V. K., & Thomas, R. K. (1975). Failure to find spatial reversal deficits following medial frontal lesions. Bulletin of the Psychonomic Society, 5, 465-468.

16. Czerny, P., & Thomas, R. K. (1975). Sameness-difference judgments in Saimiri sciureus based on volumetric cues. Animal Learning and Behavior, 3, 375-379.

17. Prewett, M. J., & Thomas, R. K. (1976). Interactions of ECS and a light-dark cycle on one-way avoidance learning in rats. Physiological Psychology, 4, 118-120.

18. Thomas, R. K., & Peay, L. (1976). Length judgments in squirrel monkeys: Evidence for conservation? Developmental Psychology, 12, 349-352.

19. Thomas, R. K., & Kerr, R. S. (1976). Conceptual conditional discrimination in Saimiri sciureus. Animal Learning and Behavior, 4, 333-336.

20. Thomas, R. K., & Crosby, T. N. (1977). Absolute and relative class conceptual behavior in squirrel monkeys (Saimiri sciureus). Animal Learning and Behavior, 5, 265-271.

21. Boyd, M. G., & Thomas, R. K. (1977). Posterior association cortex lesions in rats: Mazes, pattern discrimination and reversal learning. Physiological Psychology, 5, 455-461.

22. McDaniel, W. F., McDaniel, S. E., & Thomas, R. K. (1978). Thalamo-cortical projections to the temporal and temporal association cortices in the rat. Neuroscience Letters, 7, 121-125.

23. McDaniel, W. F., & Thomas, R. K. (1978). Temporal and parietal association cortex lesions and spatial and black-white reversal learning in the rat. Physiological Psychology, 6, 300-305.

24. Thomas, R. K., & Ingram, D. K. (1979). Conceptual volume judgments by squirrel monkeys. American Journal of Psychology, 92, 33-43.

25. Thomas, R. K., Fowlkes, D., & Vickery, J. D. (1980). Conceptual numerousness judgments by squirrel monkeys. American Journal of Psychology, 93, 247-257.

26. Gammon, W. D., & Thomas, R. K. (1980). Interactive effects of light/dark cycle, ECS, physostigmine, and scopolamine on one-way avoidance learning in rats. Physiological Psychology, 8, 72-76.

27. Thomas, R. K., & Chase, L. (1980). Relative numerousness judgments by squirrel monkeys. Bulletin of the Psychonomic Society, 16, 79-82.  

28.  Thomas, R. K. (1980).  Evolution of intelligence: An approach to its assessment. Brain, Behavior and Evolution, 17, 454-472.

29. Thomas, R. K. (1980). Attention, motivation and emotion: Entia non sunt multiplicanda praeter necessitatem. Behavioral and Brain Sciences, 3, 517-518.

30. Thomas, R. K. (1982). The assessment of primate intelligence. Journal of Human Evolution, 11, 247-255.

31. Thomas, R. K., & Frost, T. (1983). Oddity and dimension-abstracted dimension-abstracted oddity in squirrel monkeys.  American Journal of Psychology, 96, 51-64.

32. Burdyn, L. E. Jr., Noble, L. M., Shreves, L. E., & Thomas, R. K. (1984). Long-term memory for concepts by squirrel monkeys. Physiological Psychology, 12, 97-102.

33. Burdyn, L. E., Jr., & Thomas, R. K. (1984). Conditional discrimination with conceptual simultaneous and successive cues in the squirrel monkey (Saimiri sciureus). Journal of Comparative Psychology, 98, 405-413.

34. Thomas, R. K. (1985). Are cognitive and radical behaviorism incompatible? Behavioral and Brain Sciences, 7, 650. [Reprinted in A.C. Catania & S. Harnad (Eds.) The operant behaviorism of B.F. Skinner: Comments and consequences. New York: Cambridge University Press, 1988.]

35. Noble, L. M., & Thomas, R. K. (1985). Oddity and dimension-abstracted oddity (DAO) in humans. American Journal of Psychology, 98, 549-557.

36. Thomas, R. K. (1987). Overcoming contextual variables, negative results, and Macphail's null hypothesis. Behavioral and Brain Sciences, 10, 680-681.

37. Thomas, R. K., & Noble, L. M. (1988). Visual and olfactory oddity learning in rats: What evidence is necessary to show conceptual behavior? Animal Learning & Behavior, 16, 157-163.

38. Thomas, R. K. (1988). Misdescription and misuse of anecdotes and mental state concepts. Behavioral and Brain Sciences, 11, 265-266.

39. Thomas, R. K. (1988). To honor Davis and Perusse and repeal their glossary of processes of numerical competence. Behavioral and Brain Sciences, 11, 600.

40. Terrell, D. F., & Thomas, R. K. (1990). Number-related discrimination and summation by squirrel monkeys (Saimiri sciureus sciureus; Saimiri boliviensus boliviensus) based on the number of sides of polygons. Journal of Comparative Psychology, 104, 238-247.

41. Steirn, J. N., & Thomas, R. K. (1990). Comparative assessments of intelligence: Performances of Homo sapiens sapiens on hierarchies of oddity and sameness-difference (SD)tasks. Journal of Comparative Psychology, 104, 326-333

42. Thomas, R. K. (1992). Interactive models of cognitive abilities of monkeys and humans (Saimiri sciureus sciureus; S. boliviensus boliviensus; Homo sapiens sapiens). International Journal of Comparative Psychology, 5, 179- 190.

43. Thomas, R. K., & Young, C. D. (1993). A note on the history of electrical stimulation of the human brain. Journal of General Psychology, 120, 73-81.

44. Thomas, R. K. (1994). A critique of Nakagawa"s (1993) "Relational rule learning in the rat." Psychobiology, 22, 347-348.

45. Thomas, R. K. (1994). Pavlov Was "Mugged." History of Psychology newsletter, 26, 86-91. [Please see 49 below.]

46. Thomas, R. K. (1994). Pavlov used a bell. Commentary on Littman on Pavlov Bell. Psycoloquy 5.63.pavlov.bell.2.thomas. [Please see 49 below.]

47. Thomas, R. K. (1994, December). Pavlov"s dogs "dripped saliva at the sound of a bell." Further commentary on Littman on Pavlov-Bell. Psycoloquy 5.80.pavlov-bell.4.thomas. [Please see 49 below.]

48. Thomas, R. K. (1996). Investigating cognitive abilities in animals: Unrealized potential. Cognitive Brain Research, 3, 157- 166.

49. Thomas, R. K. (1997). Correcting some Pavloviana regarding "Pavlov's Bell" and Pavlov's "mugging." American Journal of Psychology, 110, 115-125.

50. Bailey, A.M., & Thomas, R.K. (1998). An investigation of oddity concept learning by rats. Psychological Record, 48, 333-344.

51. Thomas, R. K., Phillips, J.A., & Young, C.D. (1999). Comparative cognition: Human numerousness judgments. American Journal of Psychology, 112, 215-233.

52. Bailey, A. M., & Thomas, R. K. (2001). The Effects of Nucleus Basalis Magnocellularis (nBM) Lesions in Long-Evans Hooded Rats (Rattus norvegicus) on Two Learning Set Formation Tasks, Delayed Matching-to-Sample Learning, and Open Field Activity. Behavioral Neuroscience, 115, 328-340.

53. Leavens, D. A., Hopkins, W. D., & Thomas, R. K. (2004). Referential communication by chimpanzees (Pan troglodytes). Journal of Comparative Psychology, 118, 48-57.

54. Bailey, A.M., McDaniel, W.F, & Thomas, R.K. (2007) Approaches to the study of higher cognitive functions related to creativity in nonhuman animals. Methods, 42, 3-14.

55. Thomas, R. K. (2007) Recurring errors among recent history of psychology textbooks. American Journal of Psychology, 120, 477-495.

56. Thomas, R. K. (2009). Ludwig Reinhold Geissler and the founding of the Journal of Applied Psychology. American Journal of Psychology, 122, 395-403.

57. Thomas, R. K. (2011). The Southern Society for Philosophy and Psychology and Francis Cecil Sumner.  American Jourmal of Psychology, 124, 355-364.

58.  Thomas, R. K. (2016).  Priority Disputes in the History of Psychology with Special Attention to the Franz-Kalischer Dispute About Who First Combined Animal Training with Brain Extirpation to Investigate Brain Functions.  The Psychological Record., 66, 191-199.

Chapters in Scholarly Books

01. Thomas, R. K., & Walden, E. L. (1985). The assessment of cognitive development in human and nonhuman primates. E. S. Watts (Ed.), Nonhuman primate models for human growth and development. (pp. 187-215). New York: Alan R. Liss, Inc.

02.Thomas, R.K. (1986). Vertebrate intelligence: A review of laboratory studies. In R.J. Hoage & L. Goldman (Eds.). Animal intelligence: Insights into the animal mind. (pp. 37-56). Washington: Smithsonian Institution Press.

03. Thomas, R. K., & Lorden, R. B. (1989). What is psychological well-being? Can we know if primates have it? In E. F. Segal (Ed.), The psychological well-being of captive nonhuman primates, (pp. 12-26). Park Ridge, NJ: Noyes Publications. [NOTE: References from the 26 chapters in this book were intermingled in a single Reference section at the end of the book.  References from our manuscript are appended here in uneven pages, because they began near the bottom of page 18 of the manuscript and each page was numbered.  To avoid possible confusion by showing that partial last page of text and by showing page numbers, the pages were trimmed accordingly.]

04. Thomas, R. K. (1992). Primates' conceptual use of number: Ecological perspectives and psychological processes. In T. Nishida, W. C. McGrew, P. Marler, M. Pickfbrd, & F. B. M. de Waal (Eds.). Topics in Primatology, 1: Human Origins (pp. 305-314) Tokyo: Tokyo University Press.

05. Thomas, R. K., & Lorden, R. B. (1993). Animals Use of Number: A Conservative View. S. T. Boysen & and J. Capaldi (Eds.) The Development of Numerical Ability: Animal and Human Models (pp. 127-147). Hillsdale, NJ: Lawrence Erlbaum Associates, Inc.

06. Thomas, R. K. (1993). Squirrel Monkeys, Concepts, and Logic. In R. G. Burton (Ed.), Minds: Natural and Artificial, (pp. 101-119). State University of New York Press.

07. Thomas, R. K. (1998). Lloyd Morgan's Canon. In G. Greenberg & M. Haraway (Eds.), Comparative Psychology: A Handbook. (pp. 156-163), New York: Garlad Publishing Co.

08. Thomas, R. K. (Accepted for publication). Austin Southwick Edwards (1885-1976). In J. L. Pate (Ed.). Southern Society for Philosophy and Psychology Presidents and Presidential Addresses. Amsterdam: Rodopi Press.

09. Thomas, R. K. (Accepted for publication) Shepherd Ivory Franz (1874-1933). In J. L. Pate (Ed.). Southern Society for Philosophy and Psychology Presidents and Presidential Addresses. Amsterdam: Rodopi Press.

10. Thomas, R. K. (Accepted for publication). Ludwig Reinhold Geissler (1879-1932). In J. L. Pate (Ed.). Southern Society for Philosophy and Psychology Presidents and Presidential Addresses. Amsterdam: Rodopi Press.

11.  Thomas, R. K. (Accepted for publication).  Roger K. Thomas (1939 -  ).  In J. L. Pate (Ed.). Southern Society for Philosophy and Psychology Presidents and Presidential Addresses. Amsterdam: Rodopi Press.

12.  Thomas, R. K. (Accepted for publication). Lelon J, Peacock, III (1928-2013).  In J. L. Pate (Ed.). Southern Society for Philosophy and Psychology Presidents and Presidential Addresses. Amsterdam: Rodopi Press.

Other Archived, Published Scholarly Writings

01. Thomas, R. K., Jr., King, F. A. and Roberts, L. (1969). Avoidance conditioning in normal and prefrontal lesioned squirrel monkeys. International Neurosciences Abstracts, 1, 6.

02. Thomas, R. K., Jr. (1969). Prefrontal lesions and classical conditioning in squirrel monkeys. International Neuroscience Abstracts, 1, 55.

03. Thomas, R. K. (1982). Review of Beyond sociobiology by J. D. & J. I. Baldwin. Ethology and Sociobiology, 3, 45-46.

04. Thomas, R.K. (1983). Statistics. Lab Animal, 12, 64.

05. Thomas, R. K. (1986). Conceptual behavior in nonhuman animals: What evidence is necessary? Primate Report, 14, 93.

06. Thomas, R.K. (1989). Review of Intelligence and evolutionary biology. H.J. Jerison & I. Jerison (Eds. ). Contemporary Psychology, 34, 1088- 1089.

07. Thomas, R. K. (1993). Introduction: A Biopsychology Festschrift in Honor of Lelon J. Peacock, Journal of General Psychology, 120, 5.

08. Thomas, R. K. (1994).  Pavlov Was "Mugged." History of Psychology Newsletter, 26, 86-91,

09. Boeglin, J. A., & Thomas, R. K. (1996). Where does the term neuropsychology come from? International Journal of Psychology, 31, 162.

10. Thomas, R. K. (1999). Shepherd Ivory Franz (1874-1933). In J. A. Garraty (Editor-in-Chief), American National Biography. New York: Oxford University Press.

11. Thomas, R. K. (1999). Francis Cecil Sumner (1895-1954). In J. A. Garraty (Editor-in-Chief), American National Biography. New York: Oxford University Press.

12. Thomas, R. K.. (2000). Vladimir Mikhailovich Bekhterev (1857-1927) In Encyclopedia of Psychology (Vol. 1, pp. 398-399)  Washington: Encyclopedia of Psychology.

13. Thomas, R.K. (2000). George John Romanes (1848-1894). In Encyclopedia of Psychology (Vol. 7, pp. 113-115). Washington: Encyclopedia of Psychology.

14. Thomas, R. K. (2000). Shepherd I. Franz (1874-1933). In Encyclopedia of Psychology (Vol. 3, pp. 396-398), Washington: Encyclopedia of  Psychology.

15. Thomas, R.K. (2000). Clifford T. Morgan (1915-1976). In A.E. Kazdin (Editor- in-Chief), Encyclopedia of Psychology, Washington: American Psychological Association.

16. Thomas, R.K. (2000). Heinrich Kluver (1897-1979 ). In A.E. Kazdin (Editor-in-Chief), Encyclopedia of Psychology, Washington: American Psychological Association.

17. Thomas, R. K. (2000). Letter to the Editor: What's Fair? APS Observer, 13, 4.

18. Thomas, R. K. (2001). Florene Mary Young (1901-1994). The Feminist Psychologist, 28, 27, 32.

19. Thomas, R. K. (2001). Hazards of "Emergentism" Originally publishd in History & Theory of Psychology Eprint Archive: York University, Canada.

20. Thomas, R. K. (2001). Lloyd Morgan's Canon: A History of Misrepresentation. Originally publishd in History & Theory of Psychology Eprint Archive: York University, Canada.

Dewsbury, D. A. (2002) On Misrepresenting Lloyd Morgan's Canon: Comment on Thomas.  http://htpprints.yorku.ca/archive/00000044/00/Dewsbury-on-Thomas.htm

21. Thomas, R. K. (2002). Reply to Dewsbury on "On Misrepresenting Lloyd Morgan's Canon: Comment on Thomas." Originally publishd in History & Theory of Psychology Eprint Archive: York University, Canada.

Black, S. (2002).   Comment on Roger Thomas' "Lloyd Morgan's Canon: A History of Misrepresentation" http://htpprints.yorku.ca/archive/00000037/00/Black-on-Thomas.htm

Wozniak, R. H. (2002). Comment on Roger Thomas' "Lloyd Morgan's Canon: A History of Misrepresentation" http://htpprints.yorku.ca/archive/00000038/00/Wozniak-on-Thomas.htm

22. Thomas, R. K. (2002). Reply to Black and Wozniak on "Lloyd Moregan's Canon: A History of Misrepresentation. History and Theory of Psychology Eprint Archive. 

23. Thomas, R. K. (2003). Crawford W. Long's Discovery of Anesthetic Ether: Mesmerism, Delayed Publication, and the Historical Record. Originally publishd in History & Theory of Psychology Eprint Archive: York University, Canada. 

24. Thomas, R. K. (2005). Gosset, William Sealy.  In Encyclopedia of Statistics in Behavioral Science.  West Sussex, UK: John Wiley & Sons, Ltd.

25 Thomas, R. K. (2005). Galton, Francis. In Encyclopedia of Statistics in Behavioral Sciences. West Sussex, UK: John Wiley & Sons, Ltd.

26 Thomas, R. K. (2006). Celestia Susannah Parrish (1853-1918): Pioneering Psychologist, Native Virginian, and "Georgia's Greatest Woman." The Feminist Psychologist, 33, pp. 16 & 28.

27. Thomas, R. K. (2009). Review of Harry Whitaker, C.U.M. Smith, and Stanley Finger (Eds.). Brain, Mind and Medicine: Essays in Eighteenth-Century Neuroscience. New York: Springer, 207. 376 pp. $59.95 (hardcover). ISBN-13 978-0-70-966-6. Journal of the History of the Behavioral Sciences, 45, 176-179.

28. (Manuscript Version) Thomas, R. K. (2012). Conditional reasoning by nonhuman animals. In Norbert Seel (Ed.). Encyclopedia of the Sciences of Learning: Part 3 (pp. 742-745). New York, NY: Springer-Verlag.

29. (Manuscript Version) Thomas, R. K. (2012). Learning set formation and conceptualization. In Norbert Seel (Ed.). Encyclopedia of the Sciences of Learning: Part 12 (pp. 1966-1968). New York, NY: Springer-Verlag.

30. Thomas, R. K. (2012). Bekhterev, V. M. In Robert W. Rieber (Ed.). Encyclopedia of the History of Psychological Theories (Vol 1, pp. 110-112). New York: Springer-Verlag.

31. Thomas, R. K. (2012). Broca, Pierre Paul. In Robert W. Rieber (Ed.). Encyclopedia of the History of Psychological Theories (Vol 1, pp. 137-138). New York: Springer-Verlag.

32. Thomas, R. K. (2012). Flourens, Pierre. In Robert W. Rieber (Ed.). Encyclopedia of the History of Psychological Theories (Vol. 1, pp. 442-443). New York: Springer-Verlag.

33. Thomas, R. K. (2012). Galton, F. In Robert W. Rieber (Ed.). Encyclopedia of the History of Psychological Theories (Vol. 1, pp. 462-464). New York: Springer-Verlag.

34. Thomas, R. K. (2012). Geissler, L. R. In Robert W. Rieber (Ed.). Encyclopedia of the History of Psychological Theories (Vol 1, pp.: 465-466). New York: Springer-Verlag.

34. Thomas, R. K. (2012). Harlow, Harry. In Robert W. Rieber (Ed.). Encyclopedia of the History of Psychological Theories (Vol. 1, pp. 504-506). New York: Springer-Verlag.

35. Thomas, R. K. (2012). Klüver, H. In Robert W. Rieber (Ed.). Encyclopedia of the History of Psychological Theories (Vol 1, pp. 606-607). New York: Springer-Verlag.

36. Thomas, R. K. (2012). Mesmer, Franz Anton. In Robert W. Rieber (Ed.). Encyclopedia of the History of Psychological Theories (Vol. 2, pp. 672-673). New York: Springer-Verlag.

37. Thomas, R. K. (2012). Parrish, C. S. In Robert W. Rieber (Ed.). Encyclopedia of the History of Psychological Theories (Vol. 2, pp. 765-767). New York: Springer-Verlag.

38. Thomas, R. K. (2012). Romanes, G. J. In Robert W. Rieber (Ed.). Encyclopedia of the History of Psychological Theories (Vol. 2, pp. 957-959). New York: Springer-Verlag.  

39.  Thomas, R. K. (2012). Sumner, Francis Cecil.  In Robert W. Reiber (Ed.). Encyclopdia of the History of Psychological Theories (Vol.2, pp.  1049-1050).  New Yorl: Springer-Verlag.

40. Thomas, R. K. (2012). Von Helmholtz, Hermann. In Robert W. Rieber (Ed.). Encyclopedia of the History of Psychological Theories (V ol. 2, pp.  1170-1172). New York: Springer-Verlag.

[A more extensive history of the Un iversirty of Georgia De[artment of Psychology, which began as this encyclopedia article, may be found at: http://www.psychology.uga.edu/about/brief-history-department ] Thomas, R. K. (2012). University of Georgia, History of Psychology at the. In Robert W. Rieber (Ed.). Encyclopedia of the History of Psychological Theories (Vol. 2, pp. 1148-1152). New York: Springer-Verlag. 

42. Thomas, R. K. (2016) Intelligence, Evolution of.  In H. L. Miller (Ed.). Encyclopedia of Theory in Psychology (pp. 454-456). Thousand Oaks, CA: SAGE Publications.  Manuscript Version: Sage holds the Copyright.

43. Thomas, R.K. (2016). Brain and  intelligence.  In H. L. Miller (Ed.).  Encyclopedia of Theory in Psychology (pp. 107-110). Thousand Oaks, CA: Sage Publications.  Manuscript version: ©Sage holds the Copyright