Won't stop or can't stop? Food restriction as a habitual behavior among individuals with anorexia nervosa or atypical anorexia nervosa

Coniglio, Kathryn; Becker, Kendra R.; Franko, Debra L.; Zayas, Lázaro V.; Plessow, Franziska; Eddy, Kamryn T.; Thomas, Jennifer J.

doi:10.1016/j.eatbeh.2017.03.005

Cited by 48 publications

(57 citation statements)

References 15 publications

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“…No correlations were found within patients between disease duration and EDE‐Q, BIS‐11 or OCI‐R total scores. This is in line with previous studies, which reported no correlations between disease duration and the severity of food restriction in either AN or atypical AN (Coniglio et al, ).…”

Section: Resultssupporting

confidence: 93%

Atypical anorexia nervosa is not related to brain structural changes in newly diagnosed adolescent patients

Olivo

Dahlberg

Wiemerslage

et al. 2017

Intl J Eating Disorders

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Objective: Patients with atypical anorexia nervosa (AN) have many features overlapping with AN in terms of genetic risk, age of onset, psychopathology and prognosis of outcome, although the weight loss may not be a core factor. While brain structural alterations have been reported in AN, there are currently no data regarding atypical AN patients.Method: We investigated brain structure through a voxel-based morphometry analysis in 22 adolescent females newly-diagnosed with atypical AN, and 38 age-and sex-matched healthy controls (HC). ED-related psychopathology, impulsiveness and obsessive-compulsive traits were assessed with the Eating Disorder Examination Questionnaire (EDE-Q), Barratt Impulsiveness Scale (BIS-11) and Obsessive-compulsive Inventory Revised (OCI-R), respectively. Body mass index (BMI) was also calculated.Results: Patients and HC differed significantly on BMI (p < .002), EDE-Q total score (p < .000) and OCI-R total score (p < .000). No differences could be detected in grey matter (GM) regional volume between groups.Discussion: The ED-related cognitions in atypical AN patients would suggest that atypical AN and AN could be part of the same spectrum of restrictive-ED. However, contrary to previous reports in AN, our atypical AN patients did not show any GM volume reduction. The different degree of weight loss might play a role in determining such discrepancy. Alternatively, the preservation of GM volume might indeed differentiate atypical AN from AN. K E Y W O R D Sadolescent, anorexia, eating disorders, imaging, MRI, OSFED, VBM

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Section: Resultssupporting

confidence: 93%

Atypical anorexia nervosa is not related to brain structural changes in newly diagnosed adolescent patients

Olivo

Dahlberg

Wiemerslage

et al. 2017

Intl J Eating Disorders

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“…Though preliminary, these results support the habit model of AN by demonstrating that the maladaptive behaviors characteristic of AN are cue-dependent. These results are also in line with those of Coniglio and colleagues [46] who found that habit strength for dietary restriction (as measured by the SRHI) was associated with the severity of food restriction and eating disorder-related functional impairment in a sample of individuals with AN and atypical AN. Furthermore, of several tested variables, including diagnosis (atypical AN vs AN), illness duration, and cognitive restraint, only habit strength was found to be a significant predictor of variance in reported food restriction.…”

Section: Tests Of a Habit-centered Model Of An: Behaviorsupporting

confidence: 92%

“…As described above, existing data provide compelling evidence for habits and engagement of dorsal frontostriatal circuits in the salient behavior of maladaptive food intake in AN [42••, 44•, 46]. These findings open new questions regarding the development of AN.…”

Section: Discussionmentioning

confidence: 87%

The Role of Habits in Anorexia Nervosa: Where We Are and Where to Go From Here?

Uniacke

Walsh

Foerde

et al. 2018

Curr Psychiatry Rep

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Behavior is habitual after it is frequently repeated and becomes nearly automatic, relatively insensitive to outcome, and mediated by dorsal frontostriatal neural systems. There is evidence for such behavior in AN, in which restrictive intake has been related to dorsal frontostriatal systems. Other neural and neurocognitive data provide mixed findings, some of which suggest disturbances in habit systems in AN. There are compelling behavioral and neural data to suggest that habit systems may underlie the persistence of AN. The habit model needs further research, via more direct behavioral hypothesis testing and probes of the development of habitual behavior. Investigation of the habit-centered model of AN may open avenues for the development of novel treatments.

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“…Its prevalence is on the rise and treatment effectiveness is not satisfactory; approximately 10% of patients die (the highest mortality among mental diseases) [ 1 – 3 ]. Normalization of body weight in affected persons usually does not mean that all disease symptoms subside as patients still exhibit a number of symptoms that include both eating and depression disorders [ 3 , 4 ]. The disease affects a few times more frequently females than males, in particular girls in adolescent years when significant changes take place with regard to fat tissue distribution [ 1 , 2 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Neuropeptide B and Vaspin as New Biomarkers in Anorexia Nervosa

Grzelak

Tyszkiewicz‐Nwafor

Dutkiewicz

et al. 2018

BioMed Research International

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Introduction The aim of the study was to assess the correlation between the levels of neuropeptide B (NPB), neuropeptide W (NPW), vaspin (VAS), and the total antioxidant status (TAS) in the blood, as well as nutritional status of patients with anorexia nervosa (AN). Materials and Methods The study covered a cohort of 76 female teenagers, including 46 females with extreme AN and 30 healthy peers (CONTR) aged 12-17. Results AN persons were characterized by higher (in comparison to CONTR) NPB and VAS concentrations and lower values of TAS levels, body weight, and anthropometric values. Positive correlations between NPB and VAS levels were noted in the AN group (R=0.33; p<0.001) as well as between concentrations of NPW and VAS in the same group (R=0.49; p<0.001). Furthermore, positive correlations existed between NPB and NPW concentrations across the whole studied population (AN+CONTR; R=0.75; p<0.000001), AN (R=0.73; p<0.000001) and CONTR (R=0.90; p<0.0005). Conclusions In detailed diagnostics of AN it is worth considering testing NPB and VAS levels.

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Won't stop or can't stop? Food restriction as a habitual behavior among individuals with anorexia nervosa or atypical anorexia nervosa

Cited by 48 publications

References 15 publications

Atypical anorexia nervosa is not related to brain structural changes in newly diagnosed adolescent patients

Atypical anorexia nervosa is not related to brain structural changes in newly diagnosed adolescent patients

The Role of Habits in Anorexia Nervosa: Where We Are and Where to Go From Here?

Neuropeptide B and Vaspin as New Biomarkers in Anorexia Nervosa

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