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Neural progenitor cell (NPC) profileration in mice is associated with oscillating patterns of expression of several transcription factors, whereas NPC differentiation is associated with the sustained, dominant expression of particular transcription factors.
Two recent studies show that vasoactive intestinal polypeptide-expressing interneurons exert a disinhibitory effect on cortical pyramidal cells in a number of brain areas, and this has important implications for control of cortical processing and behaviour.
Cognitive and neurobiological changes during development influence the content and longevity of memories for events that occurred in early childhood. Mark L. Howe discusses the implications for court cases in which the main evidence consists of adults' recollections of childhood experiences.
In this Perspective article, Reiss and colleagues summarize the most recent neuroimaging studies attempting to determine the neural correlates of humour and discuss the influence of sex, personality traits and certain psychiatric disorders on humour appreciation.