The Relationship Between Cannabis, Cognition, and Schizophrenia: It's Complicated.

The consequences of cannabis use, especially in the context of schizophrenia, have gained increased importance with the legalization of cannabis in North America and across the globe. Cannabis use has multifaceted impacts on cognition in schizophrenia patients and healthy subjects. Healthy subjects, particularly those who initiated cannabis use at earlier ages and used high-potency cannabis for longer durations, exhibited poorer cognition mainly in working memory and attention.

Alcohol and Vaporized Nicotine Co-exposure During Adolescence Contribute Differentially to Sex-Specific Behavioral Effects in Adulthood.

Introduction: Co-occurrence of e-cigarette use and alcohol consumption during adolescence is frequent. Here, we examined whether adolescent co-exposure to alcohol drinking and vaporized nicotine would impact reward- and cognition-related behaviors in adult male and female rats during adulthood.

Aims And Methods: Four groups of male and female Sprague Dawley rats (n = 8-11/group/sex) received either nicotine (JUUL 5% nicotine pods) or vehicle vapor for 10 minutes daily between postnatal days 30-46, while having continuous voluntary access to ethanol and water during this time in a two-bottle preference design.

Comorbidity of body dysmorphic disorder and eating disorders: severity of psychopathology and body image disturbance.

Objective: The current study examined comorbidity and clinical correlates of eating disorders in a large sample of individuals with body dysmorphic disorder (BDD).

Method: Two hundred individuals with DSM-IV (4th ed. of the Diagnostic and Statistical Manual of Mental Disorders.

Assessing olfaction in the neuropsychological exam: the relationship between odor identification and cognition in older adults.

The relationship between odor identification and cognition has not been previously well characterized. The neuroanatomy of the olfactory system and the frequent finding of olfactory dysfunction in neurodegenerative diseases suggest a likely relationship between odor identification and memory, language, and executive functioning, though previous studies have often failed to demonstrate the expected relationship. The current study examined this relationship in across a continuum of ability levels (N=100).

Assessment of mood state in dementia by use of the visual analog mood scales (VAMS).

Objective: The assessment of mood states in individuals with dementia is a challenging yet clinically useful task. The purpose of the present study was to examine the validity of the Visual Analog Mood Scales (VAMS) in individuals with dementia.

Methods: Thirty-one patients who met diagnostic criteria for dementia completed the VAMS and a modified Profile of Mood States.