Schizophrenia Negative Symptoms: 5 A's

A's

SCHIZOPHRENIA

Core negative symptoms of schizophrenia that are often refractory to traditional first-generation antipsychotics.

Negative symptoms reflect hypodopaminergic activity in the mesocortical pathway and are strongly correlated with chronic functional disability.

Systematic Breakdown

Lack of motivation or ability to initiate and sustain goal-directed activities (e.g. self-care, hygiene, employment).

Blunted emotional expression, diminished facial responsiveness, monotone voice, and reduced eye contact.

Poverty of speech; reduction in quantity of spontaneous speech and empty, brief replies.

Diminished capacity to experience pleasure from previously enjoyable activities.

Lack of interest in social interactions and severe interpersonal detachment.

High-Yield Clinical Pearls & Exam Tips

Positive symptoms (delusions, hallucinations) are driven by hyperdopaminergic activity in the mesolimbic pathway and respond well to D2 antagonism.
Second-generation (atypical) antipsychotics (e.g. Clozapine, Aripiprazole, Cariprazine) have modest advantages over first-generation agents for negative symptoms.

Related Pharmaceuticals

Clozapine Aripiprazole Cariprazine Olanzapine

Related Clinical Conditions

Schizophrenia Schizoaffective Disorder Major Depressive Disorder with Psychotic Features

Authoritative Sources: DSM-5-TR · Kaplan & Sadock's Comprehensive Textbook of Psychiatry 10e