Thermoregulation Among Individuals With First-episode Psychosis

Eligibility for Individuals with First-Episode Psychosis: 1. Diagnosis of a schizophrenia-spectrum disorder or mood disorder with psychotic features as determined using the Structured Clinical Interview for the DSM-5 . 2. Less than 5 years since the onset of frank psychotic symptoms as determined using the Symptom Onset in Schizophrenia Inventory. 3. No evidence of a pre-existing intellectual disability defined as a premorbid IQ \>70 as estimated using the Reading subtest of the Wide Range Achievement Test-4. Eligibility for Individuals without First-Episode Psychosis: 1. No diagnosis of a schizophrenia-spectrum disorder or mood disorder with psychotic features as determined using the Structured Clinical Interview for the DSM-5. 2. No evidence of a pre-existing intellectual disability defined as a premorbid IQ \>70 as estimated using the Reading subtest of the Wide Range Achievement Test-4. Eligibility for Individuals with and without First-Episode Psychosis: 1. Ages 18 - 35 2. No evidence of swallowing difficulties as assessed using the Swallowing Disturbance Questionnaire \[SDQ\]. defined as (i) a score \<5 on the SDQ oral phase questions, (ii) a score \<11.5 on the laryngopharygeal phase SDQ questions, and a total SDQ score \< 12.5. 3. Not meeting diagnostic criteria for a substance use disorder over the past month as determined using the Structured Clinical Interview for the DSM-5 . 4. No current or past diagnosis of a medical condition known to affect thermoregulato…