An analysis of psychological social and biochemical theories in the study of bulimia

The most rapid increases in prevalence are now occurring in children under the age of 12 [ 45 ].

Anorexia migration theory

The questionnaire consists of 28 items revealing 4 subscales Restraint, Shape Concern, Weight Concern, and Eating Concern and a global score. Developmental antecedents of restrained eating: The impact of pubertal change. Hence, according to SCH, signaling a youthful appearance became the primary means of female intra-sexual competition Abed, While there are a number of rival evolutionary theories for AN other than SCH there are very few aimed specifically at explaining BN and none that are currently supported by empirical evidence. That is, participants who perceived their own mate value as low engaged in greater competition for mates. Psychological Medicine, 11, — Semipartial correlation coefficients are reported in the text, presenting both the magnitudes and direction of effects, with their statistical significance indicated by an asterisk after each corresponding parameter estimate; non-significant results are listed on the table but not reported in the main text as per APA guidelines. Higher ALHB scores indicate a slower life history strategy. Twenty-nine female age-matched individuals formed a control-group. Coelho, B. Epidemiology of anorexia nervosa and bulimia. Google Scholar Minuchin, S.

Likewise, we did not capture male patients considering that mainly women are affected by eating disorders. Google Scholar Vandereycken, W.

An analysis of psychological social and biochemical theories in the study of bulimia

Google Scholar Halmi, K. They were then de-identified by using numerical file numbers. Results for the TG and each subgroup individually were then compared with the known reference interval RI. The analysis of the self. Moreover, the whole sample of eating disorder patients AN and BN combined showed significantly increased intrasexual competition for mates with higher EDEQ scores, thus lending further support to the SCH in a clinical population with eating disorders. Likewise, we did not capture male patients considering that mainly women are affected by eating disorders. Journal of Clinical Psychiatry, 44, — Google Scholar Huenemann, R. Moreover, the mean BMI of the AN group was appreciably lower than the means of the BN group and the control group see Table 1 , suggesting that the clinical groups were fairly representative. New York: Wiley. Table 1 Age distribution of total group and subgroup patients at first presentation Group. While there are a number of rival evolutionary theories for AN other than SCH there are very few aimed specifically at explaining BN and none that are currently supported by empirical evidence. This clinically unsatisfactory state of affairs results, at least in part, from the fact that the etiology of eating disorders remains poorly understood. Patient test results were collated for each parameter, then means, standard deviations, reference intervals RIs , t-test scores, chi-square TG only and probability levels determined. Bulimia and the basic fault: A psychoanalytic interpretation of the binging-vomiting syndrome.

Intrasexual competition for mates was also directly and significantly predicted to decrease by a slower life history Interestingly, in our study both patients with AN and BN performed more poorly in executive functions than controls, which is in agreement with prior work Salmon et al.

Google Scholar Sargent, J.

Perspectives on eating disorders

Hence this study is the first to find evidence for increased intrasexual competition for mates in patients with a clinical diagnosis of BN. We discuss the implications and limitations of our study findings. In addition, we discovered a correlation between slower life history strategies and higher self-perceived mate value when pooling the data of all three groups, which lends further support to the assumption that high mate value serves as an indicator of a slow life history strategy Abed et al. Individual body mass index BMI was calculated based on self-reported height and weight. New York: Cambridge University Press. Bulimarexia: A historical-sociocultural perspective. Moreover, the mean BMI of the AN group was appreciably lower than the means of the BN group and the control group see Table 1 , suggesting that the clinical groups were fairly representative. Google Scholar Halmi, K. As we wanted to include primarily women in early stages of the disease and at the peak of their reproductive potential, the age range was restricted to 18 to 30 years. Foch Eds. Limitations and Future Research The present study has several limitations. A longitudinal study of gross body composition and body conformation and their association with food and activity in a teenage population. This procedure allows to estimate the effect of each predictor X on each of the successive dependent variables Y , while controlling for any indirect effects of the predictors through the prior dependent variables for further details, see Figueredo et al. Garfinkel Eds. In a further study, male and female participants were exposed to profiles of average attractive individuals with either high or low intrasexual competition cues.

American Sociological Review, 44, — Google Scholar Hill, J. The heterogeneity of anorexia nervosa: Bulimia as a distinct subgroup.

anorexia theories

Besides, it would be interesting to assess patients before and after treatment to account for trends concerning intrasexual competition, to determine whether intrasexual competition changes in response to therapy. Google Scholar Simmons, R.

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A Developmental Perspective on Eating Disorders and Eating Problems