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Three Laboratory Procedures for Assessing Different Manifestations of Impulsivity in Rats

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'Impulsive pica': a new diagnostic category?

A N Chowdhury¹, Saikat Basu

¹A.N. CHOWDHURY, M.D., Ph.D., Professor & Head, Institute of Psychiatry, 7, D.L. Khan Road, Kolkata-700025.

Indian Journal of Psychiatry

|January 6, 2011

Summary

This study presents three unique cases of pica, a psychiatric disorder involving persistent eating of non-nutritive substances. The findings suggest pica warrants separate classification in clinical psychiatry.

Keywords:

Atypical obsession Impulse-control disorder Pica

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Area of Science:

Psychiatry
Clinical Psychology

Background:

Pica is a psychiatric disorder characterized by the persistent eating of non-nutritive substances.
Current classifications, such as the DSM-IV, define pica based on duration, developmental inappropriateness, and cultural context.
Potential etiologies include developmental factors, pregnancy, stress, cultural beliefs, intellectual disability, psychotic disorders, and nutritional deficiencies.

Purpose of the Study:

To describe three atypical cases of pica.
To advocate for the separate nosological placement of pica in clinical psychiatry.

Main Methods:

Case report of three patients with pica attending an outpatient psychiatric department.
Review of diagnostic criteria for pica and impulse-control disorders.

Main Results:

The three reported cases exhibited unique onset, phenomenological progression, and therapeutic responsiveness.
These atypical presentations highlight the complexity of pica.

Conclusions:

Pica presents with diverse clinical features and etiologies.
The unique characteristics of the reported cases support the need for further consideration of pica's distinct diagnostic category.