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The main direction of motor skill-specific information between rat primary motor cortex and dorsolateral striatum is shown to switch from cortex-predominant before learning to striatum-predominant after learning.
A new study captures nearly the full repertoire of primate natural behaviour and reveals that highly distributed cortical activity maintains multifaceted dynamic social relationships.
One of the long-term sequelae associated with SARS-CoV-2 infection is ‘brain fog’, which is shown in this study to be linked to systemic inflammation and leakiness of the blood–brain barrier.
Innate fear-like responses are thought to involve the amygdala, but here a tetra-synaptic pathway is identified that mediates odour-evoked innate fear in mice.
Increased levels of matrix metalloproteinase 8, expressed by circulating myeloid cells, may have a role in stress-induced changes in social behaviour in mice.
In mice, a subset of neurons in the dorsomedial hypothalamus control sympathetic nervous system signalling to adipose tissue and are dysregulated with age; activating these neurons prolongs lifespan and slows the decline in physical activity associated with ageing.
A study analyses the nanotopography of presynaptic calcium channels and release sensors and the degree of their coupling during maturation of an inhibitory synapse.
Around 10% of individuals with frontotemporal lobar dementia have amyloid filament inclusions that lack tau and TDP-43 and were thought to contain the protein FUS, but are found instead to contain the FUS homologue TAF15.
Cytoplasmic mislocalization of TDP-43 in neurodegenerative disease affects mRNA maturation and protein levels of stathmin-2, leading to a reduction in axon diameter and tearing of outer myelin layers and thereby disrupting neuronal function.
A study in mice identifies formin 2 as a regulator of axon regeneration and a potential target for promoting nerve repair after peripheral nerve injury.
A mark test of self-recognition in mice reveals that self-responding ventral CA1 neurons underlie mirror-induced self-directed behaviour and are shaped by social experience with conspecifics.