Effects of muscarinic and nicotinic receptors on contextual modulation in macaque area V1.

Effects of muscarinic and nicotinic receptors on contextual modulation in macaque area V1.
复制标题

M受体和尼古丁受体对猕猴V1区语境调节的影响。

DOI:
10.1038/s41598-021-88044-7
复制
发表时间:
2021-04-16
期刊:
影响因子:
4.6
通讯作者:
Thiele A
Thiele A
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Herrero JL;Thiele A

文献摘要

参考文献

相似文献

语境影响视觉场景中图像元素的显著性和可见性。共线侧翼可以增强或降低感知和神经元对侧翼刺激的敏感性。这些效应是通过初级视觉皮层(V1区)神经元之间的横向相互作用以及来自高级视觉区域的反馈来介导的。侧相互作用的强度受胆碱能神经调节的影响。阻断毒蕈碱受体应增加外侧皮质内相互作用的强度,而烟碱阻断应减少丘脑皮质前馈驱动。在这里,我们测试这个建议,通过局部离子电渗应用的毒蕈碱受体拮抗剂东莨菪碱和烟碱受体拮抗剂美加明,同时记录单细胞在清醒的固定猕猴V1的paraferialrepresentation。共线侧翼通常降低神经元的对比敏感度。毒蕈碱和烟碱受体阻断剂同样降低神经元对比敏感度。与我们的假设相反,侧翼相互作用并没有受到任何受体阻断的系统性影响。
Context affects the salience and visibility of image elements in visual scenes. Collinear flankers can enhance or decrease the perceptual and neuronal sensitivity to flanked stimuli. These effects are mediated through lateral interactions between neurons in the primary visual cortex (area V1), in conjunction with feedback from higher visual areas. The strength of lateral interactions is affected by cholinergic neuromodulation. Blockade of muscarinic receptors should increase the strength of lateral intracortical interactions, while nicotinic blockade should reduce thalamocortical feed-forward drive. Here we test this proposal through local iontophoretic application of the muscarinic receptor antagonist scopolamine and the nicotinic receptor antagonist mecamylamine, while recording single cells in parafoveal representations in awake fixating macaque V1. Collinear flankers generally reduced neuronal contrast sensitivity. Muscarinic and nicotinic receptor blockade equally reduced neuronal contrast sensitivity. Contrary to our hypothesis, flanker interactions were not systematically affected by either receptor blockade.
DOI: 10.1152/jn.00692.2001
发表时间: 2002-11-01
影响因子: 2.5
作者:
Cavanaugh, JR;Bair, W;Movshon, JA
通讯作者: Movshon, JA
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: 10.1038/npp.2010.104
发表时间: 2011-01
期刊: Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology
影响因子: --
作者:
通讯作者: --
DOI: 10.1111/j.1460-9568.2008.06358.x
发表时间: 2008-08-01
影响因子: 3.4
作者:
Gieselmann, M. A.;Thiele, A.
通讯作者: Thiele, A.
DOI: 10.1152/jn.00693.2001
发表时间: 2002-11-01
影响因子: 2.5
作者:
Cavanaugh, JR;Bair, W;Movshon, JA
通讯作者: Movshon, JA