Time Perception as a Function of Weight Reduction: A Differentiation Based on Age at Onset of Obesity

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Abstract
Time perception was investigated in severely obese subjects with juvenile- or adult-onset of obesity during a long-term hospitalization for weight reduction as well as in hospitalized and nonhospitalized normal-weight subjects. Time perception was defined by the subjects' judgment of the duration of brief auditory signals. Juvenile-onset obese patients significantly underestimated the one- and three-second standard durations during and following weight loss. Adult-onset obese subjects and normal-weight subjects showed no changes in time perception. These findings are discussed in connection with concomitant findings of depression and reduced energy output among juvenile-onset obese subjects after weight reduction.

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