The Interpretation of Gastric Motility: Title and subTitle BreakII. Sensitivity and Bias in the Perception of Gastric Motility

ROBERT C. GRIGGS, BA; ALBERT STUNKARD, MD

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Submitted for publication Feb 6, 1964.

Read before the Annual Meeting of the American Psychiatric Association, May 10, 1963.

Supported in part by Grant M-3684, National Institute of Mental Health, National Institutes of Health, United States Public Health Service.

Arch Gen Psychiatry. 1964;11(1):82-89. doi:10.1001/archpsyc.1964.01720250084011

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ABSTRACT

ABSTRACT | REFERENCES

This paper describes a study of factors that determine the perception of gastric motility. Our interest in this phenomenon was aroused by the results of an earlier investigation of the correlation of gastric motility and reports of hunger,⁷ which confirmed the Cannon-Carlson thesis that persons of normal weight tend to report "hunger" in the presence of gastric motility, as measured by an intragastric balloon, and

"no hunger" in its absence.^3,4 This study revealed, further, that many obese persons do not make this association: their reports of hunger tend to be determined not by the presence or absence of gastric motility, but by a response bias. Many obese men reported hunger most of the time, whereas many obese women reported no hunger most of the time.

These findings raise the question whether some obese persons are unable to perceive gastric motility. Such an incapacity,

REFERENCES

ABSTRACT | REFERENCES

Offner Electronics Co. Dynograph, Type R.

Statham P23BB strain gauge pressure transducer.

Harvard Electronics Co. Model 660-910.

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Bruch, H.: Perceptual and Conceptual Disturbances in Anorexia Nervosa , Psychosom Med 24:187-194, 1962;.

Cannon, W. B., and Washburn, A. L.: An Explanation of Hunger , Amer J Physiol 29:441-454, 1912;.

Carlson, A. J.: The Control of Hunger in Health and Disease , Chicago: University of Chicago Press, 1916;.

Luce, R. D.: " Detection and Recognition ," in Handbook of Mathematical Psychology , edited by R. D. Luce, R. R. Bush, and E. Galanter, New York: Wiley & Sons, Inc., 1963;, vol 1.

Stunkard, A. J.; Grace, W. J.; and Wolff, H. G.: The Night-Eating Syndrome: A Pattern of Food Intake among Certain Obese Patients , Amer J Med 19:78-85, 1955;.

Stunkard, A. J., and Koch, C.: The Interpretation of Gastric Motility: I. Apparent Bias in the Reports of Hunger by Obese Persons, this issue, p 74.

Stunkard, A. J., and Reinhardt, A.: The Effect of an Intragastric Balloon on Gastric Motility in Man, in preparation.

Swets, J. A.; Tanner, W. P., Jr., and Birdsall, T. G.: Decision Processes in Perception , Psychol Rev 68:301-340, 1961;.

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