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Area of Science:

  • Developmental Psychology
  • Psychiatry
  • Cognitive Science

Background:

  • Hallucinations are common in psychiatric disorders but their developmental origins are poorly understood.
  • Hallucinations' clinical significance varies with their occurrence across the individual's lifespan.

Purpose of the Study:

  • To explore how developmental psychology concepts can improve understanding of hallucination development.
  • To examine the influence of cognitive-developmental processes on hallucination phenomenology across the lifespan.

Main Methods:

  • Review of existing literature at the intersection of developmental psychology and psychiatry.
  • Analysis of key cognitive-developmental processes implicated in hallucination formation.
  • Consideration of atypical developmental trajectories in relation to hallucination prevalence.

Main Results:

  • Cognitive-developmental processes such as imaginary play, adverse events, executive functioning, social cognition, and language development are key.
  • Atypical developmental trajectories can significantly shape hallucination prevalence and phenomenology.
  • Hallucinations' presentation and impact are context-dependent across the lifespan.

Conclusions:

  • Integrating developmental psychology and psychiatric approaches offers a promising avenue for future research.
  • A two-way benefit is anticipated from closer collaboration between developmental and psychiatric research on hallucinations.
  • Enhanced understanding of hallucination development can inform clinical interventions and psychiatric disorder management.