The Significance of the Default Mode Network (DMN) in Neurological and Neuropsychiatric Disorders: A Review.

The relationship of cortical structure and specific neuronal circuitry to global brain function, particularly its perturbations related to the development and progression of neuropathology, is an area of great interest in neurobehavioral science. Disruption of these neural networks can be associated with a wide range of neurological and neuropsychiatric disorders. Herein we review activity of the Default Mode Network (DMN) in neurological and neuropsychiatric disorders, including Alzheimer's disease, Parkinson's disease, Epilepsy (Temporal Lobe Epilepsy - TLE), attention deficit hyperactivity disorder (ADHD), and mood disorders.

First-Episode of Synthetic Cannabinoid-Induced Psychosis in a Young Adult, Successfully Managed with Hospitalization and Risperidone.

Synthetic cannabinoids- (SCs-) induced psychosis is a growing public health concern. It leads to significant impairment, including emotional distress, difficulty communicating, and other debilitating symptoms. In this case report, we discuss a patient with no previous history of psychotic symptoms, presenting with first-episode psychosis in the context of progressive, acutely worsening, disorganized, psychotic thoughts and behaviors following prolonged use of SCs.

Adolescent catatonia successfully treated with Lorazepam and aripiprazole.

Catatonia is especially concerning in children and adolescents. It leads to significant impairment, including emotional distress, difficulty communicating, and other debilitating symptoms. In this case report, we discuss a patient with no previous history of neuroleptic medication or psychotic symptoms, presenting with first-episode catatonia in the presence of disorganized, psychotic thoughts.