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The extracellular matrix (ECM) plays a key part in diverse cellular processes. Dityatev and colleagues review how the ECM can have opposing effects on neuronal function — promoting plasticity or homeostasis of synaptic contacts — depending on the physiological context and regulation by key proteases.
In this Review, Redgraveet al. provide an updated model of basal ganglia architecture in which spatially segregated functional territories contribute to goal-directed and habitual control circuits. They propose that in Parkinson's disease, selective dopamine loss impairs habitual control and distorts goal-directed behaviours.
To celebrate the first 10 years ofNature Reviews Neuroscience, we invited the authors of the most cited article of each year to look back on the state of their field at the time of publication and the impact their article has had, and to discuss the questions that might be answered in the next 10 years.
Presynaptic GABABreceptors sense local variations in basal GABA levels and homeostatically regulate release probability at individual excitatory boutons.
Lightman and Conway-Campbell review findings showing that, superimposed on its well-known circadian rhythm, the HPA axis shows ultradian, oscillatory activity. They describe how the resulting pulsatile release of glucocorticoids maintains optimal responsiveness of the HPA axis and the brain processes regulated by these hormones.