Disorders of Thought (Delusion) Formal Thought Disorder, Disorders of Stream and Content

A thought disorder (TD) is any disturbance in cognition that adversely affects language and thought content, and thereby communication. A variety of thought disorders were said to be characteristic of people with psychiatric illnesses including schizophrenia.

There are four types of thought disorders – Form, Stream, Possession, and Content.

1. Form: Obtain a speech sample on a neutral topic. Assess for the poverty of thought/poverty of thought content/ circumstantiality/flight of ideas/tangentiality/loosening of associations and derailment/neologisms

2. Stream: Observe for flow and continuity of thought process – Flight of ideas / prolixity / retardation / perseveration / thought block

3. Possession: Disorders of thought related to the ownership of thought

Obsessions – describe if thoughts are repetitive/intrusive /irrational/ego-dystonic/person’s own thoughts. Also mention the form (ideas/ impulses/ images/ doubts/ruminations) and content of obsessions. Compulsions are motor/cognitive acts to decrease the anxiety of obsessions.

Thought broadcast – thought diffusion/thinking in unison /audible thoughts/Thought insertion/Thought withdrawal

4. Delusions – Give verbatim description given by the patient and then give your impression whether the belief is - Fixed/firm/false/not in keeping with socio-cultural background/morbid origin. Describe content of belief (persecutory/ referential/misinterpretation/grandiose/ hypochondriacal/ etc). If there are multiple delusions also describe whether they are - Single/multiple elaborate/non-elaborate, bizarre/non-bizarre systematized/non-systematized

- Overvalued ideas

- Depressive cognitions – hopelessness/worthlessness/helplessness

- Death wishes or suicidal ideation – Describe the frequency, the intensity of ideas and

whether there are any active plans

- Preoccupations & ruminations – somatic/anxious/depressive
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Видео Disorders of Thought (Delusion) Formal Thought Disorder, Disorders of Stream and Content канала Prof. Suresh Bada Math