43
Bethesda, Maryland | September 19-21, 2013
between weight suppression and binge eating, purging and restrictive
behaviors. Further evaluations on a sub-group of participants evaluated
the relationship between weight suppression and neuropsychological
variables including measures of set-shifting, central coherence and
impulsivity from the Ravello profile. Data collection is on-going.
F23
The Role of Loss of Control (LOC) Eating in Purging Disorder
K. Jean Forney
1
,
Alissa A. Haedt-Matt
2
,
Pamela K. Keel
1
1
Florida State University, Tallahassee, FL, USA,
2
Illinois Institute of
Technology, Chicago, IL, USA
Introduction:
Purging Disorder (PD), a proposed eating disorder not
elsewhere classified for the DSM-5, is characterized by purging following
normal or small amounts of food. Although individuals with PD do not have
objectively large binge episodes, they may experience a sense of loss of
control (LOC) while eating an amount of food that is not larger than what
most people might consume.
Methods:
This study sought to examine
correlates of LOC eating in PD (n=101 women) through secondary
analyses from four previous studies in which participants completed
questionnaires and diagnostic interviews. All analyses controlled for age,
body mass index, study, and purging frequency.
Results:
LOC eating
frequency was positively associated with body dissatisfaction. More
frequent LOC eating was associated with greater hunger and disinhibition
around food, but not with dietary restraint. LOC eating frequency also
was associated with greater distress, greater impairment, and poorer
overall functioning. Those with more frequent LOC eating reported greater
depressive symptoms. Finally, LOC eating frequency was positively
associated with impulsivity and lifetime substance use and impulse
control disorders.
Conclusions:
LOC eating frequency may be a useful
diagnostic specifier for PD given its associations with several domains
of eating pathology, personality, and impairment above and beyond the
effects of purging. Future research should examine if LOC eating is
associated with outcome in PD.
F24
Ethnicity and BMI as Moderators of Outcome in an Internet
Intervention to Promote Positive Body Image
Debbie Franko
1
,
Rachel Rodgers
1,2
,
Tara Cousineau
3
1
Northeastern University, Boston, MA, USA,
2
University of Toulouse,
Toulouse, France,
3
Bodimojo, Inc., Milton, MA, USA
Introduction.
BodiMojo
is an Internet program designed to promote
positive body image in adolescents through technology and social
engagement.
Method.
The program was tested with 178 male and female
high school students (mean age 15.2 years, 67.6% ethnic minority) in 3
public high schools in the U.S. The
BodiMojo
group used the program for
4
class periods, while controls participated in their usual health curriculum.
Body image measures were given at baseline, post-intervention, and
3-
months.
Results.
Girls reported decreased body dissatisfaction (
p
<.05),
decreased physical appearance comparison (
p
<.05), and increased
appearance satisfaction (
p
<.05), relative to controls. Effects sizes were
small to moderate. No differences between intervention and control groups
were found for boys. Moderator analyses revealed a significant Group x
Time x Overweight status interaction for body dissatisfaction among girls,
with overweight girls reporting greater decreases in body dissatisfaction
,
p
= .012, η
p
2
=
.15 (
large effect). Among girls, there was a significant
Group x Time x Ethnic minority status interaction for body esteem,
p
=
.004,
partial
η
2
=
.14,
and body dissatisfaction,
p
= .029, partial
η
2
=
.10,
with ethnic minority girls reporting greater increases in body appearance
esteem than Caucasian girls from pre-test to post-test.
Conclusions.
BodiMojo
appears to be effective in decreasing body image concerns and
appearance comparisons among adolescent girls and may be particular
effective with some groups.
F25
Does Self-Compassion Reduce Risk of Disordered Eating in
Community Women?
Josie Geller
1,2
,
Suja Srikameswaran
1,2
,
Joanna Zelichowska
1,2
,
Megumi
Iyar
1,2
1
St. Paul’s Hospital, Vancouver, BC, Canada,
2
University of British
Columbia, Vancouver, BC, Canada
Introduction
:
Self-Compassion (SC) is defined as an emotionally positive
self-attitude in times of hardship that involves being kind toward oneself,
perceiving failure as part of the larger human experience, and mindfulness.
SC has been associated with resilience, social connectedness, life
satisfaction, and lower psychiatric distress. This research examined
applications of SC to shape and weight concerns and disordered eating
in community women.
Methods
:
The Self-Compassion Scale (SCS;
Neff, 2006) assesses 6 subscales across 3 dimensions: self-kindness vs.
self-judgment, common humanity vs. isolation, and mindfulness vs. over-
identification. Community women (
N
= 131) completed an online survey
that included the SCS and measures of shape and weight concerns,
disordered eating, depression, and anxiety.
Results
:
SC was negatively
correlated with shape and weight concerns and with disordered eating.
After controlling for BMI, SC subscales accounted for additional unique
variance in shape and weight concerns (self-judgment and self-kindness)
and disordered eating (over-identification). SC was also shown to
moderate the relation between depression, anxiety, and disordered eating.
That is, higher distress was associated with more disordered eating in
individuals with low and moderate, but not high, SC.
Conclusions:
SC
is associated with shape, weight and eating concerns and may reduce
the risk of disordered eating, particularly in individuals who are prone to
depression and anxiety.
F26
Anhedonia, Binge Eating (BE) and Cognitive Restraint Are
Associated With Decision Making Deficits in Obese Individuals on
the Iowa Gambling Task (IGT)
Marci E. Gluck, Aleron Toledo, Alexis Graham, Colleen Venti, Marie
Thearle, Susanne B. Votruba, Jonathan Krakoff
Phoenix Epidemiology & Clinical Research Branch, NIH/NIDDK, Phoenix,
AZ, USA
Obese individuals may have alterations in decision making. This can be
measured by the Iowa Gambling Task (IGT), which simulates real-life
decision-making by assessing the ability to sacrifice immediate rewards
in favor of long term gains. We hypothesized that IGT performance
would be related to factors associated with both eating pathology and
abnormalities in reward processing. Seventy-six (53% female) healthy
obese volunteers (112±20 kg [mean ± SD]; 35±10 y) participating in
one of our weight loss studies were admitted to our inpatient unit. They
received a weight maintaining diet, completed the IGT and questionnaires
to measure anhedonia, binge eating and cognitive restraint. Binge eaters
(
n = 12) were categorized as those who reported episodes of eating a
large amount of food with a sense of loss of control. Higher anhedonia (r
= -0.32, p=0.008) and lower restraint (r = 0.27, p=0.03) were correlated
with poorer performance on the IGT. BE had lower IGT scores compared
to non-BE (-14 vs. 4.0; p=0.02). In a GLM, anhedonia (β=-5.23; p=0.02),
but not restraint or BE, predicted total IGT scores, even after controlling for
body weight, waist, age, sex, race and education. These results indicate
that obese individuals who exhibit loss of pleasure and diminished interest
in rewarding stimuli, lack of self-control and binge eating behaviors show
a preference for short-term rewards and thus, may make less controlled
decisions about lifestyle choices.
F27
Stability of Disordered Eating Attitudes and Behaviors During
Ecological Momentary Assessment: A Study of Reactivity
Alissa A Haedt-Matt
1
,
Pamela K Keel
2
1
Illinois Institute of Technology, Chicago, IL, USA,
2
Florida State University,
Tallahassee, FL, USA
While researchers have long recognized the potential for reactivity as a
challenge in ecological momentary assessment (EMA), few studies have
systematically explored this phenomenon. The purpose of this study was
to examine reactivity to EMA in eating disorders. Women (
N
=24) with
purging disorder completed an initial EDE, 14 days of EMA ratings, and
a final, modified EDE that covered only the previous two weeks during
which EMA was conducted. Paired
t
-
tests and correlations were used to
determine whether self-monitoring during EMA influenced participants’
eating disorder attitudes or behavioral frequencies. Results indicated
significant, positive correlations between initial and final EDE assessment
scores for total, restraint, weight concerns, shape concerns, purging
frequencies, and frequency of excessive exercise. In addition, there were
no significant differences between initial and final EDE assessment scores
for these scales. However, subjective binge eating frequency decreased
significantly from initial to final assessments, suggesting the potential
presence of reactivity for this behavior. Notably, correlations between
pre- and post-monitoring EDE assessments were comparable to previous
studies of the test-retest reliability of EDE over a similar time frame.
Overall, results fail to provide strong support for the presence of eating
disorder behavioral or attitudinal reactivity to self-monitoring. Further
research is needed to investigate reactivity of binge eating.
F28
Visuospatial Processing and Planning in Adolescent Females with
Anorexia Nervosa (AN)
Lucy Harvey
1
,
Mark Rose
1,2
,
Bryan Lask
1,3
1
Great Ormond St Hospital for Children, London, United Kingdom,
2
Huntercombe Group, Maidenhead, United Kingdom,
3
Care UK, London,
United Kingdom
Background:
The literature suggests variable performance on Tower
tasks (e.g. Zakzanis et al., 2010), indicating possible planning weaknesses
in AN. As there is a visual element to completing these tasks, it is possible
that weaknesses on Tower performance instead represent visuospatial
weaknesses, also found in AN. To assess this, DKEFS Tower performance
was compared with performance on a visuospatial task, the Rey Complex
Figure Test (RCFT), within a child and adolescent AN sample and healthy
controls. The effect of co-morbidities was also explored.
Methods:
78
female adolescents with AN (mean age 15.18, SD 1.8) and 78 age-
matched healthy controls (mean age 15.24, SD 1.8) were included in
POSTER SESSION 2 ABSTRACTS
