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A New Method for Inducing a Depression-Like Behavior in Rats
Published on: February 22, 2018
Withdrawal behavior and depression in infancy
1Hôpital Bichat-Claude Bernard, AP/HP Paris.
Insights
Infant depression is complex, with diagnosis challenging before 18-24 months. Relational withdrawal may be a more applicable concept for younger infants, considering developmental psychopathology.
Area of Science:
- Developmental Psychology
- Infant Mental Health
- Psychopathology
Background:
- The concept of infant depression is foundational to infant mental health.
- Current diagnostic criteria yield inconsistent prevalence rates and may be unrealistic.
- The onset, outcome, and specific features of infant depression remain unclear.
Purpose of the Study:
- To review the history, classification, and diagnosis of infant depression.
- To explore potential developmental timelines and etiological factors.
- To propose alternative conceptualizations for early infancy.
Main Methods:
- Historical review of infant depression concepts.
- Analysis of diagnostic criteria and their limitations.
- Exploration of developmental psychopathology principles.
- Consideration of attachment theory and learned helplessness.
Main Results:
- Infant depression likely requires significant emotional and cognitive development, emerging around 18-24 months.
- Attachment disorganization may be a precursor to depression.
- Developmental psychopathology favors a dimensional, multi-factorial view over categorical diagnoses.
- Relational withdrawal is suggested as a more suitable concept for infants under 18-24 months.
Conclusions:
- Diagnostic challenges persist in identifying infant depression.
- A developmental perspective suggests depression may not manifest before 18-24 months.
- Relational withdrawal offers a useful alternative framework for understanding early infant distress.
Abstract:
This paper describes the history of the concept of infant depression, which has been at the beginning of the discipline of infant mental health, and reviews classification and diagnosis issues, along with some animal models. Several diagnostic criteria have yielded different prevalence rates, and some being unrealistic, but we still do not know when infant depression begins, what its outcome is, and what are its different aspects. It is suggested that infant depression needs a certain amount of emotional and cognitive development to unfold, and that it might not exist before 18-24 months of age, a crossover during which major autoreflexive, cognitive, and emotional abilities emerge. Depression could be an outcome of attachment disorganization in infancy, as depression and disorganization seem to share the same learned helpnessness psychopathological process. Developmental psychopathology considers trouble more from a dimensional point of view rather than from a categorical one, and more as the result of several factors with a sequential action rather than the effect of a genetic disorder with direct expression. Before the limit of 18-24 months, the concept of relational withdrawal seems more applicable and useful.
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