PSY 1205 Lecture Notes - Lecture 1: Psychosis, Thought Insertion, Thought Disorder
Document Summary
Schizophrenia: a chronic psychotic disorder, characterized by a range of cognitive, behavioral, perceptual & emotional dysfunction, positive symptoms- added effects, negative symptoms removed effects. Delusions: false beliefs, fixed beliefs that are not amenable to change in light of conflicting evidence, represent disturbed thought content. Types: persecutory, referential, grandiose, erotomaniac, nihilistic, somatic, thought broadcasting, thought insertion, thought withdrawal. Hallucinations: sensory perception-like experiences that occur without an external stimulus. Disorganized thinking & speech: thought disorder: a disturbance in thinking characterized by the breakdown of logical association between thoughts, derailment or loose associations, tangentiality, incoherence / word salad". Grossly disorganized or catatonic behavior: various presentations, catatonia: marked decrease in reactivity to the environment, stereotyped movements. Negative symptoms: diminished emotional expression, flat affect , poor eye contact, lack of gesturing and intonation, lack of volition, diminished speech output, anhedonia, asociality. Schizophrenia: onset: late adolescence / early adulthood, prodromal phase, acute phase, residual phase.
