Muscarinic and Nicotinic Contribution to Contrast Sensitivity of Macaque Area V1 Neurons.

Muscarinic and Nicotinic Contribution to Contrast Sensitivity of Macaque Area V1 Neurons.
复制标题

DOI:
10.3389/fncir.2017.00106
复制
发表时间:
2017
影响因子:
3.5
通讯作者:
Thiele A
Thiele A
中科院分区:
医学3区
文献类型:
--
作者:
Herrero JL;Gieselmann MA;Thiele A

文献摘要

参考文献

被引文献

相似文献

乙酰胆碱是一种神经调节剂,影响不同皮层和皮层下区域的信息处理。细胞类型和位置特异性胆碱能受体的分布表明,乙酰胆碱在猕猴纹状皮层中可以促进前驱活动,同时通过增加抑制性张力降低群体兴奋性。在麻醉的灵长类V1中使用胆碱能激动剂的研究已经为这种建议提供了相互矛盾的证据。本研究研究了毒蕈碱或烟碱受体阻断对猕猴清醒V1区神经元兴奋性和对比反应功能的影响。毒蕈碱或烟碱受体阻断导致所有对比测试的活性降低,而不影响神经元达到一半最大反应的对比(c50)。通过神经测量功能评估,毒蕈碱和烟碱阻断后活性降低导致神经元对比敏感性降低。在大多数细胞中,受体阻断最好用反应增益模型(反应的乘法缩放)来描述,表明乙酰胆碱在猕猴V1中参与信号增强,而不是显著性过滤。
Acetylcholine is a neuromodulator that shapes information processing in different cortical and subcortical areas. Cell type and location specific cholinergic receptor distributions suggest that acetylcholine in macaque striate cortex should boost feed-forward driven activity, while also reducing population excitability by increasing inhibitory tone. Studies using cholinergic agonists in anesthetized primate V1 have yielded conflicting evidence for such a proposal. Here we investigated how muscarinic or nicotinic receptor blockade affect neuronal excitability and contrast response functions in awake macaque area V1. Muscarinic or nicotinic receptor blockade caused reduced activity for all contrasts tested, without affecting the contrast where neurons reach their half maximal response (c50). The activity reduction upon muscarinic and nicotinic blockade resulted in reduced neuronal contrast sensitivity, as assessed through neurometric functions. In the majority of cells receptor blockade was best described by a response gain model (a multiplicative scaling of responses), indicating that ACh is involved in signal enhancement, not saliency filtering in macaque V1.
DOI: 10.1038/29537
发表时间: 1998-08-20
期刊: NATURE
影响因子: 64.8
作者:
Hupé, JM;James, AC;Bullier, J
通讯作者: Bullier, J
DOI: 10.1002/brb3.225
发表时间: 2014-05
期刊: BRAIN AND BEHAVIOR
影响因子: 3.1
作者:
Disney, Anita A.;Alasady, Hussein A.;Reynolds, John H.
通讯作者: Reynolds, John H.
DOI: 10.1038/nature07141
发表时间: 2008-08-28
期刊: NATURE
影响因子: 64.8
作者:
Herrero, J. L.;Roberts, M. J.;Delicato, L. S.;Gieselmann, M. A.;Dayan, P.;Thiele, A.
通讯作者: Thiele, A.
DOI: 10.1002/cne.21096
发表时间: 2006-11-01
影响因子: 2.5
作者:
Disney, Anita A.;Domakonda, Kunal V.;Aoki, Chiye
通讯作者: Aoki, Chiye
单胞菌素 - 免疫反应性神经元在原发性视觉皮层中的M1型毒蕈碱乙酰胆碱受体的表达:大鼠,豚鼠,雪貂,猕猴和人类的比较研究。
DOI: 10.1002/cne.23456
发表时间: 2014-04-01
影响因子: 2.5
作者:
Disney, Anita A.;Reynolds, John H.
通讯作者: Reynolds, John H.