Flexibility of sensory representations in prefrontal cortex depends on cell type.

Flexibility of sensory representations in prefrontal cortex depends on cell type.
复制标题

前额叶皮层中感觉表示的灵活性取决于细胞类型。

DOI:
10.1016/j.neuron.2009.11.018
复制
发表时间:
2009-12-10
期刊:
影响因子:
16.2
通讯作者:
Pasternak, Tatiana
Pasternak, Tatiana
中科院分区:
医学1区
文献类型:
--
作者:
Hussar, Cory R.;Pasternak, Tatiana

文献摘要

参考文献

被引文献

相似文献

辨别任务需要处理、解释感官信息并将其与适当的运动反应联系起来。我们报告说,前额叶皮层中的神经元在运动处理的早期阶段以与皮层神经元相当的精度表示视觉运动,并且很容易使这种表示适应行为环境。我们发现,当猴子辨别方向时所记录的方向选择性,在它们判断运动速度而忽略其方向时会降低。这种减少在被分类为窄尖峰(NS)推定中间神经元的神经元中比在宽尖峰(BS)推定锥体神经元中更为明显。然而,在被动固定过程中,当运动与其行为相关性之间的联系被移除时,两种细胞类型都表现出严重的选择性损失。我们的结果表明,主动辨别任务期间灵活的感觉表征是通过 NS 神经元的专门神经元网络在 PFC 中实现的,该神经元网络可以轻松调整其对行为环境的选择性,并且 BS 神经元能够维持相对稳定的感觉表征。
Discrimination tasks require processing, interpreting, and linking sensory information to the appropriate motor response. We report that neurons in prefrontal cortex represent visual motion with precision comparable to cortical neurons at early stages of motion processing and readily adapt this representation to behavioral context. We found that direction selectivity, recorded while the monkeys discriminated directions, decreased when they judged motion speed and ignored its direction. This decrease was more pronounced in neurons classified as narrow-spiking (NS) putative inter-neurons, than in broad-spiking (BS) putative pyramidal neurons. However, during passive fixation when the link between motion and its behavioral relevance was removed, both cell types showed a severe selectivity loss. Our results show that flexible sensory representation during active discrimination tasks is achieved in the PFC by a specialized neuronal network of NS neurons readily adjusting their selectivity to behavioral context, and BS neurons capable of maintaining relatively stable sensory representation.
DOI: 10.1016/0165-0270(88)90160-4
发表时间: 1988-12-01
影响因子: 3
作者:
CRIST, CF;YAMASAKI, DSG;WURTZ, RH
通讯作者: WURTZ, RH
DOI: 10.1038/nn799
发表时间: 2002-02-01
影响因子: 25
作者:
Constantinidis, C;Williams, GV;Goldman-Rakic, PS
通讯作者: Goldman-Rakic, PS
DOI: 10.1152/jn.1985.54.4.782
发表时间: 1985-01-01
影响因子: 2.5
作者:
MCCORMICK, DA;CONNORS, BW;PRINCE, DA
通讯作者: PRINCE, DA
DOI: 10.1016/j.cub.2004.04.028
发表时间: 2004-05-04
期刊: CURRENT BIOLOGY
影响因子: 9.2
作者:
Martinez-Trujillo, JC;Treue, S
通讯作者: Treue, S
DOI: 10.1098/rstb.1996.0138
发表时间: 1996-10-29
影响因子: 6.3
作者:
Cohen, JD;Braver, TS;OReilly, RC
通讯作者: OReilly, RC