公开(公告)号：US20140156574A1

公开(公告)日：2014-06-05

申请号：US13691554

申请日：2012-11-30

Applicant: BRAIN CORPORATION

Inventor： Filip Piekniewski ,  Micah Richert ,  Dimitry Fisher ,  Eugene Izhikevich

IPC: G06N3/02

CPC classification number: G06N3/02 ,  G06N3/049 ,  G06N3/088

Abstract: Apparatus and methods for activity based plasticity in a spiking neuron network adapted to process sensory input. In one embodiment, the plasticity mechanism may be configured for example based on activity of one or more neurons providing feed-forward stimulus and activity of one or more neurons providing inhibitory feedback. When an inhibitory neuron generates an output, inhibitory connections may be potentiated. When an inhibitory neuron receives inhibitory input, the inhibitory connection may be depressed. When the inhibitory input arrives subsequent to the neuron response, the inhibitory connection may be depressed. When input features are unevenly distributed in occurrence, the plasticity mechanism is capable of reducing response rate of neurons that develop receptive fields to more prevalent features. Such functionality may provide network output such that rarely occurring features are not drowned out by more widespread stimulus.

Abstract translation: 适用于处理感觉输入的加标神经元网络中基于活动的可塑性的装置和方法。 在一个实施方案中，可塑性机制可以例如基于提供前馈刺激的一个或多个神经元的活性和提供抑制反馈的一个或多个神经元的活性来配置。 当抑制性神经元产生输出时，可以增强抑制性连接。 当抑制性神经元接受抑制性输入时，可能抑制抑制性连接。 当抑制输入在神经元响应之后到达时，可能抑制抑制性连接。 当输入特征在发生时不均匀分布时，可塑性机制能够将发展接受场的神经元的反应率降低到更普遍的特征。 这样的功能可以提供网络输出，使得很少发生的特征不被更广泛的刺激所淹没。