Latency of the blink reflex and stimulus intensity J

The latency of the eyeblink reflex is inversely related to the intensity of the auditory or visual stimuli used to evoke it. This is true for both mechanical and muscle action potential methods for recording the response.     

The Non-Achievement Syndrome,Group Therapy,and Achievement Change

174 selected failing students at Illinois Institute of Technology were provided group counseling as a condition of their remaining in school. The assumption of the psychodynamics of the non-achievement syndrome was made regarding these students and a group counseling approach (NAS therapy) derived from an approach delineated by Roth and Meyersburg seemed appropriate and was utilized. 52 male subjects in this population were randomly selected for study as were 52 probationary, noncounseled males who were used as a comparison group. The results indicated that the counseled group increased their GPA's significantly and that these changes held over time. The GPA's of the comparison group did not increase significantly. The differences were attributable to the counseling experience.     

Book reviews

Machine Intelligence. Edited by N. L. Collins and D. Michie. Edinburgh: Oliver & Body. 1967. Pp x + 278. 63s.

Mechanisms of Animal behavior. By P. R. Marler and W. J. Hamilton III. London and New York: Wiley. 1966. Pp. xi + 740. 113s.

Animal Behaviour: A Synthesis of Ethology and Comparative Psychology. By Robert A. Hinde. London: McGraw-Hill. 1966. Pp. x + 534. 84s.

Manual of Psychophysiological Methods. Edited by P.H Venables and Irene Martin. Amsterdam: North-Holland publishing Co. 1967. Pp ix + 557. £4 10s. od.

The Senses. By Lowenstein. London: Penguin Books. Pelican Original. 1966. Pp. 217. 5s.

Human Spatial Orientation. By I. P. Howard and W. B. Templeton. London and New York: Wiley. 1966. Pp. 553. 84s. net.

Attention: An Enduring Problem in Psychology. Edited by Paul Baskan. London: van Nostrand. Insight book No. 34. 1966. Pp. iv + 225. 14s. $1.75.

Amnesia. Edited by C. W. M. Whitty and O. L. Zangwill. London: Butterworths. 1967. Pp. x + 217. 64s.

Brain Function. Volume III: Speech, Language and Communication. Edited by Edward C. Carterette, UCLA Forum in Medical Sciences. No. 4. University of California Press. London: Cambridge University press. 1967. Pp. xiii + 279. 96s.

Annual review of Psychology. Volume 18. Edited by P. R. Farnsworth, O. McNemar and O. McNemar. Palo Alto, California: Annual Reviews Inc. 1967. PP. 606. $9.00 ($8.50 in U.S.A.).

Contemporary Approaches to Psychology. Edited by H. helson and W. bevan. Princeton, New Jersey and London: Van Nostrand Company. 1967. Pp. xii + 596. £5 16s.

The Hypnotic Investigation of Dereams. By C. scott Moss. London and New York: Wiley. 1967. Pp. xi + 290. 60s.

The Dynamics of Behavior Development: An Epigenetic View. By Zing-Yang Kuo. Random House Studies In Psychology (Consulting Editor, L. J. Stone) New York: Random House. 1967. Pp. xii + 240. $2.45.

Self-Evaluation: Concepts and Studies. By James C. Diggory. London and New York: Wiley. 1966. Pp. xiii + 477. 80s.

The Psychology of Interpersonal Behaviour. by Michael Argyle. Harmondsworth: Penguin Books Ltd. 1967. Pp. 223. 4s. 6d.

The Causes of Behaviour II. Second edition. Edited by Judy F. Rosenblith and Wesley Allinsmith. Boston: Allyn and Bacon. 1966. Pp. xv + 608. $6.95.     

Impact of Commitment Upon Performance of College Students

The retention, academic achievement, and change in college plans of students committed to a field of study as freshmen are compared with those who were not sure of their interest. A survey form administered to all the freshmen in the class of 1964, College of Agriculture, was readministered to all those still enrolled seven semesters later. The original hypothesis that the committed student was different from the uncommitted tended to be upheld. The committed student who was dedicated to the study of agriculture was more persistent in his interest in his chosen field; fewer committed students changed majors; fewer withdrew from college.     

Occupational Values of High School Students

Responses of high school students as freshmen and later as sophomores in this study support the belief that the characteristics of a vocation that are important to students may be internalized relatively early in life. There were differences between what girls and boys thought was important in an occupation; however, little difference was found between the group means of these students when freshmen and a year later when sophomores. Most students did not change occupational preference between the freshman and sophomore year. Students in the study as freshmen, but transferring out or withdrawing a year later, differed little in occupational values or in occupational choice from the sophomores. These findings agree only in part with work of other researchers in this field.     

Effect of Person

The role of the experimenter in the behavioral study, although recognized by Darwin, Pavlov, psychiatrists and others, has not been adequately evaluated in terms of the quantitative measures of the CR. Our study in this paper concerns especially the cardiac changes induced by “Person” in normal and pathological animals—monkey, dog, cat, opossum, guinea pig and rabbit. Owing to the greater sensitivity of the cardiovascular and respiratory systems, these are more reliable and delicate measures than the usual somatic muscular ones. The Person can be used as an unconditional stimulus on the basis of which conditional reflexes are formed. Person has an especially pronounced effect on neurotic animals—shown often in a more pronounced way in the cardiorespiratory responses than in the more superficial behavioral ones. This Effect of Person may provide insights into the production of neurosis as well as some of the beneficial effects of therapy, e.g., the personal factor of the therapist.