Sentences with phrase «by synaptic connections»

Not exact matches

Geoff Hinton, a leading neural networking theorist, argues the hardware is useless without the proper «learning algorithm» spelling out which factors change the strength of the synaptic connections and by how much.

The long - term facilitation of synaptic efficacy that is induced by serotonin in dissociated cell cultures of sensory and motor neurons of Aplysia is accompanied by the growth of new synaptic connections.

Instead, the molecular processes triggered by memory formation and recall could reflect the stabilization of previously altered or recently retrieved synaptic connections.

Over-activation of the D2 class of dopamine receptors led to suppression of the function of NMDA receptors, which are activated by the neurotransmitter glutamate, at the synaptic connection between hippocampus and prefrontal cortex.

Building on their previous work that identified and activated memory cells, a group led by RIKEN Brain Science Institute and RIKEN - MIT Center Director Susumu Tonegawa has now shown that spines — small knobs on brain - cell dendrites through which synaptic connections are formed — are essential for memory retrieval in these AD mice.

Animal behaviour arises from computations in neuronal circuits, but our understanding of these computations has been frustrated by the lack of detailed synaptic connection maps, or connectomes.

When the researchers modeled the effects in mice, they found it strengthened the connections between neurons that make learning possible — what is known as synaptic plasticity — by increasing the action of a cell receptor critical to forming memories.

They are exploring whether these developmental findings can be used to address diseases such as stroke, by promoting the repair of synaptic connections following injury.

Additionally, the complement system acts in brain development to refine synaptic connections by removing those that are weak or misdirected.

This will allow for the capture of all the synaptic connections between individual neurons at small targeted regions guided by the X-ray microtomography.