Behavioral signatures of Y-like neuronal responses in human vision.
Behavioral signatures of Y-like neuronal responses in human vision.
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DOI：
10.1038/s41598-022-23293-8
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发表时间：
2022-11-09
影响因子：
4.6
通讯作者：
中科院分区：
文献类型：
--
作者：
启动大细胞/Y细胞视觉通路的视网膜神经节细胞对高空间频率（SF）和时间频率（TF）的响应是非线性的。这种非线性与猫和猴子的对比度调制（CM）刺激的处理有关，但其对人类视觉感知的贡献还没有得到很好的理解。在这里，我们评估人类的心理物理性能CM刺激，由一个高SF光栅载波的对比度调制的低SF正弦波包络。受试者报告了CM包络或亮度调制（LM）光栅在不同偏心率下的运动方向。针对不同TF（LM）或载体TF（CM）测量SF（对于LM）或载体SF（对于CM）上的性能。LM的最佳性能是在较低的TF和SF时，随偏心率系统地降低。然而，与CM的性能是带通与载波SF，在很大程度上独立于载波TF，并在最高载波TF（20 Hz）与偏心率降低最小。由于Y-细胞的非线性亚基在较高的TF比线性响应组件响应更好，并在较高的SF是相对独立的偏心率，这些结果表明，行为任务采用CM刺激可能会揭示视网膜Y-样细胞的非线性贡献人类感知。
Retinal ganglion cells initiating the magnocellular/Y-cell visual pathways respond nonlinearly to high spatial frequencies (SFs) and temporal frequencies (TFs). This nonlinearity is implicated in the processing of contrast modulation (CM) stimuli in cats and monkeys, but its contribution to human visual perception is not well understood. Here, we evaluate human psychophysical performance for CM stimuli, consisting of a high SF grating carrier whose contrast is modulated by a low SF sinewave envelope. Subjects reported the direction of motion of CM envelopes or luminance modulation (LM) gratings at different eccentricities. The performance on SF (for LMs) or carrier SF (for CMs) was measured for different TFs (LMs) or carrier TFs (CMs). The best performance for LMs was at lower TFs and SFs, decreasing systematically with eccentricity. However, performance with CMs was bandpass with carrier SF, largely independent of carrier TF, and at the highest carrier TF (20 Hz) decreased minimally with eccentricity. Since the nonlinear subunits of Y-cells respond better at higher TFs compared to the linear response components and respond best at higher SFs that are relatively independent of eccentricity, these results suggest that behavioral tasks employing CM stimuli might reveal nonlinear contributions of retinal Y-like cells to human perception.
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DOI：
10.1098/rspb.1994.0111
发表时间：
1994-08-22
影响因子：
4.7
作者：
HOLLIDAY, IE;ANDERSON, SJ
通讯作者：
ANDERSON, SJ
影响因子：
34.7
作者：
Nassi, Jonathan J.;Callaway, Edward M.
通讯作者：
Callaway, Edward M.
灵长类动物 V2 区对对比度调制的形式提示不变二阶神经元反应
影响因子：
5.3
作者：
Li, Guangxing;Yao, Zhimo;Baker, Curtis L., Jr.
通讯作者：
Baker, Curtis L., Jr.
影响因子：
2.5
作者：
Mareschal, I;Baker, CL
通讯作者：
Baker, CL
DOI：
10.1364/josaa.21.000913
发表时间：
2004-06-01
影响因子：
1.9
作者：
Johnson, AP;Baker, CL
通讯作者：
Baker, CL