Activity-Dependent Presynaptic and Postsynaptic Structural Plasticity in the Mature Cerebellum
نویسندگان
چکیده
منابع مشابه
Activity-dependent presynaptic and postsynaptic structural plasticity in the mature cerebellum.
Two models of spine formation have been proposed. Spines can derive from emerging dendritic filopodia that have encountered presynaptic partners, or presynaptic molecules may induce the spine maturation event directly from the dendritic shaft. The first model applies better to the Purkinje cell (PC), because numerous free spines have been described in several conditions, particularly when granu...
متن کاملCadherins Communicate Structural Plasticity of Presynaptic and Postsynaptic Terminals
Synapse adhesion molecules play a key role in specifying and facilitating the recognition of axodendritic contacts. New studies by and reported in this issue of Neuron reveal multiple functions for the cadherin-catenin complex. This adhesion complex regulates synaptogenesis and coordinates synaptic strength with presynaptic and postsynaptic organization, including the shape of dendritic spines.
متن کاملCholinergic coordination of presynaptic and postsynaptic activity induces timing-dependent hippocampal synaptic plasticity.
Correlated presynaptic and postsynaptic activity is the key factor in inducing Hebbian plasticity and memory. However, little is known about the physiological events that could mediate such coordination. Correlated cholinergic input induces spike timing-dependent plasticity-like hippocampal synaptic plasticity. Cholinergic receptors are localized to both presynaptic and postsynaptic glutamaterg...
متن کاملActivity-dependent structural plasticity.
Plasticity in the brain reaches far beyond a mere changing of synaptic strengths. Recent time-lapse imaging in the living brain reveals ongoing structural plasticity by forming or breaking of synapses, motile spines, and re-routing of axonal branches in the developing and adult brain. Some forms of structural plasticity do not follow Hebbian- or anti-Hebbian paradigms of plasticity but rather a...
متن کاملTrans-Synaptic Plasticity: Presynaptic Initiation, Postsynaptic Memory
A novel mechanism of persistent facilitation induced by serotonin at Aplysia synapses depends upon rapid postsynaptic protein synthesis and increased responsiveness to glutamate; whereas the memory for this synaptic change is postsynaptic, the initiating signal may be an increase in spontaneous release of glutamate from the presynaptic terminals.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Neuroscience
سال: 2007
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.5617-06.2007