Psychosis & Delusions—Jason Case Study

Scenario used throughout lecture involves Jason (patient exhibiting psychotic symptoms), Tom (friend), and Sam (mutual acquaintance).
Purpose: illustrate how clinicians identify, differentiate, and manage delusions, hallucinations, and broader psychotic disorders.
Emphasis on observing behaviour (e.g., Jason talking to himself, shouting "go away" or "be quiet") and collateral history (input from Tom, Lisa) to build a clinical picture.

Delusion = fixed, false, idiosyncratic belief.
- Held with powerful conviction despite zero logical foundation or disconfirming evidence.
- Not shared by cultural or sub-cultural reference group (otherwise it is a culturally sanctioned belief, not pathological).
- Persists even after repeated refutation and presentation of contradictory facts.
Key diagnostic criteria (all must be present):
- Strongly held.
- Illogical / non-evidence-based.
- Irreversible (patient will not relinquish belief when challenged).
- Idiosyncratic (isolated to the individual; not collectively endorsed).
Clinical tip: always consult a cultural informant before labelling a belief delusional.

Delusion of Grandeur
- Patient claims exaggerated identity/ability (e.g., “I am God,” “I am Superman incarnate”).
- Associated with mania, schizophrenia, schizoaffective disorder.
Bizarre Delusion
- Belief that is clearly implausible and not derived from ordinary life experience (e.g., “my organs have stopped working but I’m still alive”).
Somatic Delusion (mentioned implicitly)
- False conviction about bodily malfunction (e.g., organs rotting, brain liquefying).
Cultural Delusion
- Content influenced by cultural context; careful assessment needed so clinician does not pathologise culturally normative ideas.

Jason demonstrates auditory hallucinations (hearing voices commanding or distressing him).
Discussion point: “Can a deaf or hard-of-hearing person experience an auditory hallucination?” (Answer: Yes—hallucinated perceptions do not rely on intact sensory pathways; they are generated centrally.)

Manic episodes often characterised by “flight of ideas”—rapid, tangential thinking leading to pressured, voluminous speech.
Duration criteria:
- \text{Mania: Duration} > 7\;\text{days (or any duration if hospitalisation is required)}
- \text{Hypomania: Duration} < 7\;\text{days (minimum 4 days)}
Hypomania = milder symptom intensity and no marked functional impairment; Mania = prominent impairment ± psychosis.
Overlap acknowledged between manic presentations and psychotic symptom onset.

Brief discussion: substance use (amphetamines, cannabis, hallucinogens, steroids, etc.) can precipitate psychotic symptoms.
Key management difference: address intoxication, withdrawal, and provide short-term antipsychotic cover; reassess once substance cleared.

Students asked if patients can learn to self-identify early cues (sleep loss, racing thoughts, subtle perceptual changes).
Non-pharmacological approaches viewed as complementary, especially for:
- Psycho-education (diagnosis explanation, stigma management).
- Insight building & relapse-prevention planning.
- Family interventions to bolster support network.
- CBT for psychosis, stress-management, coping strategies.

Jason commenced on risperidone (second-generation antipsychotic).
- Standard approach: start, titrate, review after ≈ 4 weeks.
- At four-week review Jason has minimal improvement → prompts reassessment.
Next-step considerations:
- Adherence check (missed doses? partial compliance?).
- Dose optimisation vs. switching antipsychotic vs. adding long-acting injectable (LAI).
Long-Acting Injectables (LAIs)
- Useful for poor adherence; given every 2–4 weeks or longer.
- Risk: inadvertent double-dosing if oral and injectable overlap without communication.
- Ethical concern: perceived coercion—clinician must weigh autonomy vs. beneficence.

Shared decision-making to maintain respect for patient rights.
Alternatives when follow-up difficult (e.g., rural settings):
- Extended-duration prescriptions.
- Community transport schemes.
- Telehealth + nurse-administered depot clinics.

Involuntary treatment = last resort; requires legal framework, multiple assessments.
Stigma: Psychosis carries social burden; education for patient, family, community paramount.
Culturally competent practice crucial to avoid mislabelling culturally anchored beliefs.

Multifactorial contributors to psychosis/delusions:
- Genetic predisposition (family history).
- Obstetric trauma / perinatal hypoxia.
- Early life adversity (abuse, neglect).
- Adolescent substance misuse → neuro-developmental impact.
- Acute stress, sleep deprivation.
Model: Biological vulnerability + environmental stressor → threshold crossed → psychotic episode.

Re-evaluate persistence of auditory hallucinations:
- Is it non-response to risperidone, non-adherence, or progression?
Conduct comprehensive review:
- Side-effect profile, serum levels (if available), drug-interaction screen.
- Psychosocial stressors currently acting (work, relationships, sleep pattern).
Possible interventions:
- Switch/augment antipsychotic (e.g., olanzapine, aripiprazole, or clozapine if treatment-resistant).
- Introduce LAI after informed consent.
- Intensify psychological therapy and support services.

Delusions = rigid, non-culturally shared false beliefs resistant to contrary evidence.
Always consider cultural context before diagnosing.
Mania vs. hypomania distinguished primarily by duration and functional impact.
Early recognition, psycho-education, and multi-modal management (pharmacological + psychological + social) improve outcomes.
Adherence obstacles (forgetfulness, stigma, access) must be systematically addressed, with ethical vigilance regarding patient autonomy.
Case of Jason highlights iterative assessment: initial treatment, monitoring, and dynamic plan adjustments based on response and patient collaboration.