Related Experiment Video
Updated: Jan 30, 2026
07:46
Using the Activity-based Anorexia Rodent Model to Study the Neurobiological Basis of Anorexia Nervosa
Published on: October 22, 2015
15.1K
Anorexia nervosa and perfectionism: A meta-analysis
Sophie C Dahlenburg1, David H Gleaves1, Amanda D Hutchinson1
1University of South Australia, Adelaide, South Australia, Australia.
The International Journal of Eating Disorders
|January 12, 2019
Summary
Individuals with anorexia nervosa (AN) exhibit higher maladaptive perfectionism than non-clinical groups and those with other psychiatric diagnoses. Maladaptive perfectionism is also linked to bulimia nervosa (BN).
Area of Science:
- Psychiatry
- Clinical Psychology
- Eating Disorder Research
Background:
- Perfectionism is frequently studied in anorexia nervosa (AN).
- However, comparisons of perfectionism levels between AN, other eating disorders, and other psychiatric diagnoses are lacking.
- This meta-analysis addresses this gap in the literature.
Purpose of the Study:
- To compare perfectionism (maladaptive and adaptive) in individuals with AN against non-clinical groups, individuals with other eating disorders (e.g., bulimia nervosa [BN]), and individuals with other psychiatric diagnoses.
- To investigate the association of maladaptive perfectionism in AN and BN.
Main Methods:
- A systematic review and meta-analysis adhering to PRISMA guidelines.
- Included 23 studies with 3,561 female participants.
- Compared perfectionism scores in AN patients versus non-clinical, BN, and other psychiatric diagnosis groups.
Main Results:
- Individuals with AN showed significantly higher maladaptive perfectionism than non-clinical groups (g=1.00) and other psychiatric diagnosis groups (g=0.41).
- AN patients also exhibited higher adaptive perfectionism than non-clinical groups (g=1.24).
- No statistically significant difference in maladaptive perfectionism was found between AN and BN groups.
Conclusions:
- Maladaptive perfectionism is a significant characteristic of AN, exceeding levels found in non-clinical and other psychiatric populations.
- Findings suggest maladaptive perfectionism is associated with both AN and BN, despite non-significant direct comparisons between these two groups.
- Publication bias may influence comparisons with the other psychiatric diagnosis group.
Related Concept Videos
01:28Anorexia Nervosa
1.2K
Anorexia nervosa is a complex and severe eating disorder characterized by an intense fear of weight gain, an unrelenting pursuit of thinness, and a distorted body image. It often leads to dangerously low body weight relative to an individual's age and height. This disorder is marked by significant physical and psychological consequences, making it one of the most life-threatening psychiatric illnesses.
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
1.2K
01:30Bulimia Nervosa
766
Bulimia nervosa is a complex and severe eating disorder characterized by a cyclical pattern of binge-and-purge eating pattern. It generally involves an episode of binge eating, followed by compensatory behaviors such as vomiting, excessive exercise, laxative use, or fasting, to prevent weight gain. Despite often maintaining a normal weight, individuals with bulimia are intensely preoccupied with their body image and harbor an overwhelming fear of gaining weight. This can contribute to the...
766
01:09Directing Effect of Substituents: meta-Directing Groups
6.0K
Substituents on the benzene ring that direct an incoming electrophile to undergo substitution at the meta position are called meta directors. All meta directors either have a positive charge on the atom directly bonded to the ring or a partial positive charge. These groups function by withdrawing electrons from the ring through inductive and resonance effects. Consider the carbocation intermediates formed upon the addition of an electrophile on nitrobenzene at the...
6.0K
01:13meta-Directing Deactivators: –NO2, –CN, –CHO, –CO2R, –COR, –CO2H
6.7K
All meta-directing substituents are deactivating groups. These substituents withdraw electrons from the aromatic ring, making the ring less reactive toward electrophilic substitution. For example, the nitration of nitrobenzene is 100,000 times slower than that of benzene because of the deactivating effect of the nitro group. The first step in an electrophilic aromatic substitution is the addition of an electrophile to form a resonance-stabilized carbocation. The energy diagrams for...
6.7K
03:46Qualitative Analysis
24.2K
For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique involves a series of selective precipitations with different chemical reagents, each reaction producing a characteristic precipitate for a specific group of cations. Metal ions within a group are further separated by varying the pH, heating the mixture to redissolve a precipitate, or adding other reagents to form complex ions.
For instance, group IV...
For instance, group IV...
24.2K
03:40Dimensional Analysis
64.2K
Dimensional analysis, also known as the factor label method, is a versatile approach for mathematical operations. The main principle behind this approach is: the units of quantities must be subjected to the same mathematical operations as their associated numbers. This method can be applied to computations ranging from simple unit conversions to more complex and multi-step calculations involving several different quantities and their units.
Conversion Factors and Dimensional Analysis
The unit...
Conversion Factors and Dimensional Analysis
The unit...
64.2K