Influence of synaptic depression on memory storage capacity

Details Influence of synaptic depression on memory storage capacity Influence of synaptic depression on memory storage capacity

2011-06-15

arxiv.org/abs/1106.2894v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

Scientific paper

Synaptic efficacy between neurons is known to change within a short time scale dynamically. Neurophysiological experiments show that high-frequency presynaptic inputs decrease synaptic efficacy between neurons. This phenomenon is called synaptic depression, a short term synaptic plasticity. Many researchers have investigated how the synaptic depression affects the memory storage capacity. However, the noise has not been taken into consideration in their analysis. By introducing "temperature", which controls the level of the noise, into an update rule of neurons, we investigate the effects of synaptic depression on the memory storage capacity in the presence of the noise. We analytically compute the storage capacity by using a statistical mechanics technique called Self Consistent Signal to Noise Analysis (SCSNA). We find that the synaptic depression decreases the storage capacity in the case of finite temperature in contrast to the case of the low temperature limit, where the storage capacity does not change.

Affiliated with

Also associated with

No associations

Rating

Influence of synaptic depression on memory storage capacity does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Influence of synaptic depression on memory storage capacity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Influence of synaptic depression on memory storage capacity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-657965