Publications

Sleep is influenced by individual differences in genetic and environmental factors, as well as differences in brain structure. Although some sleep parameters vary substantially from night to night, a number of specific sleep features remain highly stable. Within a single individual, the stability of certain sleep features can be considered trait-like, meaning stable sleep parameters remain so, even following...

Visual spatial working memory, a core cognitive process, is dependent upon a cortical network composed of multiple nodes, including primary visual, posterior parietal, and dorsolateral prefrontal cortices. Within this network, information essential for proper visual spatial working memory function is transferred via projections furnished by pyramidal neurons located primarily in cortical layer 3. Across the primate...

Individuals with schizophrenia can experience auditory hallucinations and delusions, as well as disrupted cognitive and sensory processes that may result in functional impairment and long-term disability. In the cerebral cortex, pyramidal cells are essential to the cognitive and sensory processes that may be disrupted in schizophrenia. Postmortem studies of individuals with schizophrenia consistently show deficits...

Acute stressors affect how we perceive the world, allocate our mental energy, and make decisions. Although the prefrontal cortex is known to be an essential brain region involved in adaptive behaviors related to stress, our understanding of the individual cell types and synaptic plasticity mechanisms in the prefrontal cortex is limited. In a recent study published in Neuron, a team of investigators including co...

Among scientists working in the field of autism spectrum disorder research, two models represent the most common understanding of the disorder’s genetic underpinnings: one posits that rare risk variants invariably have large impact on liability; the other emphasizes the major role played by common variations with small effects. On a population level, the common variation likely plays the dominant role in liability...

Bipolar disorder (BD) is a familial illness that is associated with functional impairment and increased risk for suicide and substance use. The disorder is highly heritable, and research has identified many common genetic variants associated with risk for the disorder. Studies including the Pittsburgh Bipolar Offspring Study (BIOS) have found that offspring of parents with BD are at elevated, specific risk to...