All Relations between top-down modulation and v1

Publication Sentence Publish Date Extraction Date Species
Benoit Le Bec, Xoana G Troncoso, Christophe Desbois, Yannick Passarelli, Pierre Baudot, Cyril Monier, Marc Pananceau, Yves Frégna. Horizontal connectivity in V1: Prediction of coherence in contour and motion integration. PloS one. vol 17. issue 7. 2022-07-08. PMID:35802625. since it is demonstrated in the anesthetized cat, this novel form of contextual control of the cortical gain and phase is a built-in property in v1, whose expression does not require behavioral attention and top-down control from higher cortical areas. 2022-07-08 2023-08-14 human
Kevin J Norman, Julia Bateh, Priscilla Maccario, Christina Cho, Keaven Caro, Tadaaki Nishioka, Hiroyuki Koike, Hirofumi Morishit. Frontal-Sensory Cortical Projections Become Dispensable for Attentional Performance Upon a Reduction of Task Demand in Mice. Frontiers in neuroscience. vol 15. 2022-01-28. PMID:35087372. previous studies have shown that frontal top-down neurons projecting from the anterior cingulate area (aca) to the visual cortex (vis; aca 2022-01-28 2023-08-13 mouse
Jian Ding, Zheng Ye, Fei Xu, Xiangmei Hu, Hao Yu, Shen Zhang, Yanni Tu, Qiuyu Zhang, Qingyan Sun, Tianmiao Hua, Zhong-Lin L. Effects of top-down influence suppression on behavioral and V1 neuronal contrast sensitivity functions in cats. iScience. vol 25. issue 1. 2022-01-21. PMID:35059603. effects of top-down influence suppression on behavioral and v1 neuronal contrast sensitivity functions in cats. 2022-01-21 2023-08-13 Not clear
Jian Ding, Zheng Ye, Fei Xu, Xiangmei Hu, Hao Yu, Shen Zhang, Yanni Tu, Qiuyu Zhang, Qingyan Sun, Tianmiao Hua, Zhong-Lin L. Effects of top-down influence suppression on behavioral and V1 neuronal contrast sensitivity functions in cats. iScience. vol 25. issue 1. 2022-01-21. PMID:35059603. to explore the relative contributions of higher-order and primary visual cortex (v1) to visual perception, we compared cats' behavioral and v1 neuronal contrast sensitivity functions (csf) and threshold versus external noise contrast (tvc) functions before and after top-down influence of area 7 (a7) was modulated with transcranial direct current stimulation (tdcs). 2022-01-21 2023-08-13 Not clear
Jian Ding, Zheng Ye, Fei Xu, Xiangmei Hu, Hao Yu, Shen Zhang, Yanni Tu, Qiuyu Zhang, Qingyan Sun, Tianmiao Hua, Zhong-Lin L. Effects of top-down influence suppression on behavioral and V1 neuronal contrast sensitivity functions in cats. iScience. vol 25. issue 1. 2022-01-21. PMID:35059603. analysis of tvc functions using the perceptual template model (ptm) indicated that top-down influence of a7 increased both behavioral and v1 neuronal contrast sensitivity by reducing internal additive noise and the impact of external noise. 2022-01-21 2023-08-13 Not clear
Sunyoung Park, John T Serence. Relative precision of top-down attentional modulations is lower in early visual cortex compared to mid- and high-level visual areas. Journal of neurophysiology. 2022-01-12. PMID:35020526. relative precision of top-down attentional modulations is lower in early visual cortex compared to mid- and high-level visual areas. 2022-01-12 2023-08-13 human
Sunyoung Park, John T Serence. Relative precision of top-down attentional modulations is lower in early visual cortex compared to mid- and high-level visual areas. Journal of neurophysiology. 2022-01-12. PMID:35020526. however, little is known about the relative precision of top-down attentional modulations in different visual areas, especially compared to the highly precise stimulus-driven responses that are observed in early visual cortex. 2022-01-12 2023-08-13 human
Sunyoung Park, John T Serence. Relative precision of top-down attentional modulations is lower in early visual cortex compared to mid- and high-level visual areas. Journal of neurophysiology. 2022-01-12. PMID:35020526. while v1 showed the largest relative difference between the precision of top-down attentional modulations and the precision of bottom-up modulations, mid-level areas such as v4 showed relatively smaller differences between the precision of top-down and bottom-up modulations. 2022-01-12 2023-08-13 human
Sunyoung Park, John T Serence. Relative precision of top-down attentional modulations is lower in early visual cortex compared to mid- and high-level visual areas. Journal of neurophysiology. 2022-01-12. PMID:35020526. v1 vs v4) and the relative precision of top-down and bottom-up modulations suggests that the precision of top-down attentional modulations is limited by the representational fidelity of areas that generate and relay top-down feedback signals. 2022-01-12 2023-08-13 human
Thiago Leiros Costa, Johan Wageman. Gestalts at threshold could reveal Gestalts as predictions. Scientific reports. vol 11. issue 1. 2021-11-29. PMID:34526565. in addition, the presence of nonlinearities in the psychometric functions suggest differential top-down modulation of the early visual cortex. 2021-11-29 2023-08-13 Not clear
Arnaud Saj, Jordan E Pierce, Roberta Ronchi, Tomas Ros, Marine Thomasson, Thérèse Bernati, Dimitri Van De Ville, Andrea Serino, Patrik Vuilleumie. Real-time fMRI and EEG neurofeedback: A perspective on applications for the rehabilitation of spatial neglect. Annals of physical and rehabilitation medicine. vol 64. issue 5. 2021-11-25. PMID:34311120. using real-time functional mri (rt-fmri) nfb in chronic neglect, we demonstrated that patients are able to upregulate their right visual cortex activity, a response that is otherwise reduced due to losses in top-down attentional signals. 2021-11-25 2023-08-13 Not clear
Chuyao Yan, Alexis Pérez-Bellido, Floris P de Lang. Amodal completion instead of predictive coding can explain activity suppression of early visual cortex during illusory shape perception. Journal of vision. vol 21. issue 5. 2021-11-24. PMID:33988675. these results were interpreted as congruent with the predictive coding framework, in which neurons in early visual cortex enhance or suppress their activity depending on whether the top-down predictions match the bottom-up sensory inputs. 2021-11-24 2023-08-13 Not clear
Jordan P Hamm, Yuriy Shymkiv, Shuting Han, Weijian Yang, Rafael Yust. Cortical ensembles selective for context. Proceedings of the National Academy of Sciences of the United States of America. vol 118. issue 14. 2021-11-19. PMID:33811144. optogenetic suppression of prefrontal inputs to v1 reduced the contextual selectivity of deviance-detecting ensembles, demonstrating a causal role for top-down inputs. 2021-11-19 2023-08-13 mouse
Jian Ding, Xiangmei Hu, Fei Xu, Hao Yu, Zheng Ye, Shen Zhang, Huijun Pan, Deng Pan, Yanni Tu, Qiuyu Zhang, Qingyan Sun, Tianmiao Hu. Suppression of top-down influence decreases neuronal excitability and contrast sensitivity in the V1 cortex of cat. Scientific reports. vol 11. issue 1. 2021-11-15. PMID:34362965. suppression of top-down influence decreases neuronal excitability and contrast sensitivity in the v1 cortex of cat. 2021-11-15 2023-08-13 cat
Jian Ding, Xiangmei Hu, Fei Xu, Hao Yu, Zheng Ye, Shen Zhang, Huijun Pan, Deng Pan, Yanni Tu, Qiuyu Zhang, Qingyan Sun, Tianmiao Hu. Suppression of top-down influence decreases neuronal excitability and contrast sensitivity in the V1 cortex of cat. Scientific reports. vol 11. issue 1. 2021-11-15. PMID:34362965. how top-down influence affects neuronal activity and information encoding in the primary visual cortex (v1) remains elusive. 2021-11-15 2023-08-13 cat
Jian Ding, Xiangmei Hu, Fei Xu, Hao Yu, Zheng Ye, Shen Zhang, Huijun Pan, Deng Pan, Yanni Tu, Qiuyu Zhang, Qingyan Sun, Tianmiao Hu. Suppression of top-down influence decreases neuronal excitability and contrast sensitivity in the V1 cortex of cat. Scientific reports. vol 11. issue 1. 2021-11-15. PMID:34362965. this study examined changes of neuronal excitability and contrast sensitivity in cat v1 cortex after top-down influence of area 7 (a7) was modulated by transcranial direct current stimulation (tdcs). 2021-11-15 2023-08-13 cat
Jian Ding, Xiangmei Hu, Fei Xu, Hao Yu, Zheng Ye, Shen Zhang, Huijun Pan, Deng Pan, Yanni Tu, Qiuyu Zhang, Qingyan Sun, Tianmiao Hu. Suppression of top-down influence decreases neuronal excitability and contrast sensitivity in the V1 cortex of cat. Scientific reports. vol 11. issue 1. 2021-11-15. PMID:34362965. we found that the amplitude of veps in v1 cortex lowered after top-down influence suppression with cathode-tdcs in a7, whereas veps in v1 did not change after sham-tdcs in a7 and nonvisual cortical area 5 (a5) or cathode-tdcs in a5 and lesioned a7. 2021-11-15 2023-08-13 cat
Jian Ding, Xiangmei Hu, Fei Xu, Hao Yu, Zheng Ye, Shen Zhang, Huijun Pan, Deng Pan, Yanni Tu, Qiuyu Zhang, Qingyan Sun, Tianmiao Hu. Suppression of top-down influence decreases neuronal excitability and contrast sensitivity in the V1 cortex of cat. Scientific reports. vol 11. issue 1. 2021-11-15. PMID:34362965. therefore, top-down influence of a7 enhanced neuronal excitability in v1 cortex and improved neuronal contrast sensitivity by both contrast gain and response gain. 2021-11-15 2023-08-13 cat
Amira N Parker, Guy M Wallis, Rainer Obergrussberger, Ulrike E Siebec. Categorical face perception in fish: How a fish brain warps reality to dissociate "same" from "different". The Journal of comparative neurology. vol 528. issue 17. 2021-11-11. PMID:32406088. our results reveal how perception can be influenced in a top-down manner even in the absence of a visual cortex. 2021-11-11 2023-08-13 human
Leena Ali Ibrahim, Shuhan Huang, Marian Fernandez-Otero, Mia Sherer, Yanjie Qiu, Spurti Vemuri, Qing Xu, Robert Machold, Gabrielle Pouchelon, Bernardo Rudy, Gord Fishel. Bottom-up inputs are required for establishment of top-down connectivity onto cortical layer 1 neurogliaform cells. Neuron. vol 109. issue 21. 2021-11-05. PMID:34478630. here we investigated the contribution of early thalamic inputs onto l1 interneurons for establishment of top-down connectivity in the primary visual cortex. 2021-11-05 2023-08-13 Not clear