Basing perceptual decisions on the most informative sensory neurons.

Basing perceptual decisions on the most informative sensory neurons.
复制标题

基于信息最丰富的感觉神经元做出感知决策。

DOI:
10.1152/jn.00273.2010
复制
发表时间:
2010
影响因子:
2.5
通讯作者:
Serences,JohnT
Serences,JohnT
中科院分区:
医学3区
文献类型:
--
作者:
Scolari,Miranda;Serences,JohnT

文献摘要

参考文献

被引文献

相似文献

单单位记录研究表明,知觉决策通常基于感觉神经元的输出,这些感觉神经元对相关刺激特征做出最大反应(或“调整”)。然而,当在两个高度相似的刺激之间进行困难的区分时,知觉决定应该基于远离相关特征的神经元的活动(通道外神经元),因为这些神经元经历了更大的放电率变化,因此信息更丰富。为了验证这一假设,我们使用功能磁共振成像技术测量了人类初级视觉皮质(V1)的特征选择反应,结果表明,通道外激活的程度可以预测在一项困难的视觉辨别任务中的表现。此外,通道外激活和知觉敏锐度之间的这种预测关系并不是简单的具有特定刺激特征的广泛练习的结果(就像在知觉学习的研究中那样)。取而代之的是,依赖信息量最大的感觉神经元的输出可能代表了一种有效计算感知决策的通用和最佳策略。
Single unit recording studies show that perceptual decisions are often based on the output of sensory neurons that are maximally responsive (or “tuned”) to relevant stimulus features. However, when performing a difficult discrimination between two highly similar stimuli, perceptual decisions should instead be based on the activity of neurons tuned away from the relevant feature (off-channelneurons) as these neurons undergo a larger firing rate change and are thus more informative. To test this hypothesis, we measured feature-selective responses in human primary visual cortex (V1) using functional magnetic resonance imaging and show that the degree of off-channel activation predicts performance on a difficult visual discrimination task. Moreover, this predictive relationship between off-channel activation and perceptual acuity is not simply the result of extensive practice with a specific stimulus feature (as in studies of perceptual learning). Instead, relying on the output of the most informative sensory neurons may represent a general, and optimal, strategy for efficiently computing perceptual decisions.
费舍尔信息与皮质计算和注意力理论的相关性
DOI: --
发表时间: 2001
期刊:
影响因子: --
作者:
A. Pouget;S. Denéve;P. Latham
通讯作者: P. Latham
DOI: 10.1093/cercor/bhi003
发表时间: 2005-08-01
期刊: CEREBRAL CORTEX
影响因子: 3.7
作者:
Gur, M;Kagan, I;Snodderly, DM
通讯作者: Snodderly, DM
DOI: 10.1152/jn.2001.86.4.1916
发表时间: 2001-10-01
影响因子: 2.5
作者:
Shadlen, MN;Newsome, WT
通讯作者: Newsome, WT
DOI: 10.1093/cercor/bhg097
发表时间: 2003-11-01
期刊: CEREBRAL CORTEX
影响因子: 3.7
作者:
Mazurek, ME;Roitman, JD;Shadlen, MN
通讯作者: Shadlen, MN
DOI: 10.1126/science.7754376
发表时间: 1995-05-12
期刊: SCIENCE
影响因子: 56.9
作者:
SERENO, MI;DALE, AM;TOOTELL, RBH
通讯作者: TOOTELL, RBH