Informal thought disorder

Informal thought disorder (ITD) is a form of thought disorder which interferes with daily living, it is a symptom of Catathymia and Trementia.

Symptoms
•Speech

–Echolalia: Repetition of others’ speech

–Perseveration: Reponses to questions are always the same

–Speech rigidity: Difficulties switching between topics

–Aphasia symptoms, such as jargoning

•Behavior

–Circumstantial behavior: adding unnecessary steps in a multistage action

–Tangential behavior: Switching from multistage actions to others without ever reaching the goal

–Randomness: Executing random movements and behaviors without purpose

–Behavioral verbigeration: Repeating the multistage action back and forth

–Repetitive and ritualized behaviors, excessive adherence to routines, obsessive interests

–Disinhibition and ritualized murders

–Autistic-like behavior and interests

–Malorganized behavior: finishing a multistage task before starting it