APA Dictionary of Psychology

n. the field that focuses on the influence of genetic variation on the development, structure, and function of the nervous system, as well as susceptibility to neurological, neurodevelopmental, and neuropsychiatric conditions. Research in neurogenetics explores how differences in DNA, gene expression, and epigenetic regulation affect brain development, neural connectivity, cognition, and behavior. Contemporary approaches integrate genomics, transcriptomics, and bioinformatics to understand the complex interactions between genes, environment, and neural function across the lifespan.