Conceptualizing avoidant/restrictive food intake disorder via an executive functioning lens

Area of Science:

• Psychiatry
• Neuroscience
• Developmental Psychology

Background:

• Avoidant/restrictive food intake disorder (ARFID) is characterized by eating restrictions not related to body image.
• ARFID frequently co-occurs with neurodevelopmental diagnoses.
• Executive functioning (EF) differences are common in neurodevelopmental conditions.

Purpose of the Study:

• To propose executive functioning (EF) as an understudied factor in the pathology of ARFID.
• To explore how EF differences may explain ARFID presentations.
• To stimulate research on EF's role in ARFID etiology and maintenance.

Main Methods:

• Conceptual review linking ARFID presentations to core EF components.
• Hypothesizing the role of cognitive flexibility, working memory, and inhibitory control in ARFID.
• Identifying future research directions for EF in ARFID.

Main Results:

• ARFID behaviors and cognitive tendencies can be understood through the lens of EF differences.
• Executive functioning may be a common factor in ARFID's development and persistence.
• Existing research has not sufficiently explored the link between EF and ARFID.

Conclusions:

• Executive functioning is a potentially significant, yet under-researched, factor in ARFID.
• Further investigation into EF in ARFID is crucial for refining etiological models.
• Understanding EF's role may improve ARFID treatment and outcome research.