Table 1.

Proportion (%) of Variance in Blunted Facial Expressions and Body Gestures Accounted for by Common Secondary Negative Symptoms in a Clinical High-Risk Sample

Secondary Negative Symptoms	Blunted Facial Expressions	Blunted Body Gesturing
SSRI	0	17
Anxiety	45	28
Depression	36	7
Unusual Thought Content	8	14
Disorganized Communication	10	34

Blunted affect specific negative symptom items (i.e., blunted facial expressions and body gesture) from the Negative Symptom Inventory-Psychosis Risk. Blunted vocal affect was not included, given that the regression analyses were not significant, so hierarchical partitioning was not used. SSRI scores are dichotomous (yes/no). Anxiety scores were collected using the State-Trait Anxiety Inventory, Trait Version, Anxiety Subscale, and Beck Anxiety Inventory. Depression scores are sum scores from the Center for Epidemiological Studies, Depression Scale and the Beck Depression Inventory. Unusual thought content and disorganized symptoms are domain scores from the Structured Interview for Psychosis-Risk Syndromes.

SSRI, selective serotonin reuptake inhibitor.