Revealing Detail along the Visual Hierarchy: Neural Clustering Preserves Acuity from V1 to V4

Revealing Detail along the Visual Hierarchy: Neural Clustering Preserves Acuity from V1 to V4. Lu, Y., Yin, J., Chen, Z., Gong, H., Liu, Y., Qian, L., Li, X., Liu, R., Andolina, I. M., & Wang, W. Neuron, 98(2):417–428.e3, April, 2018.

Paper doi abstract bibtex

How primates perceive objects along with their detailed features remains a mystery. This ability to make ﬁne visual discriminations depends upon a high-acuity analysis of spatial frequency (SF) along the visual hierarchy from V1 to inferotemporal cortex. By studying the transformation of SF across macaque parafoveal V1, V2, and V4, we discovered SF-selective functional domains in V4 encoding higher SFs up to 12 cycles/ . These intermittent higher-SF-selective domains, surrounded by domains encoding lower SFs, violate the inverse relationship between SF preference and retinal eccentricity. The neural activities of higher- and lower-SF domains correspond to local and global features, respectively, of the same stimuli. Neural response latencies in high-SF domains are around 10 ms later than in low-SF domains, consistent with the coarse-to-ﬁne nature of perception. Thus, our ﬁnding of preserved resolution from V1 into V4, separated both spatially and temporally, may serve as a connecting link for detailed object representation.

@article{lu_revealing_2018,
	title = {Revealing {Detail} along the {Visual} {Hierarchy}: {Neural} {Clustering} {Preserves} {Acuity} from {V1} to {V4}},
	volume = {98},
	issn = {08966273},
	shorttitle = {Revealing {Detail} along the {Visual} {Hierarchy}},
	url = {https://linkinghub.elsevier.com/retrieve/pii/S0896627318301867},
	doi = {10/gdgj48},
	abstract = {How primates perceive objects along with their detailed features remains a mystery. This ability to make ﬁne visual discriminations depends upon a high-acuity analysis of spatial frequency (SF) along the visual hierarchy from V1 to inferotemporal cortex. By studying the transformation of SF across macaque parafoveal V1, V2, and V4, we discovered SF-selective functional domains in V4 encoding higher SFs up to 12 cycles/ . These intermittent higher-SF-selective domains, surrounded by domains encoding lower SFs, violate the inverse relationship between SF preference and retinal eccentricity. The neural activities of higher- and lower-SF domains correspond to local and global features, respectively, of the same stimuli. Neural response latencies in high-SF domains are around 10 ms later than in low-SF domains, consistent with the coarse-to-ﬁne nature of perception. Thus, our ﬁnding of preserved resolution from V1 into V4, separated both spatially and temporally, may serve as a connecting link for detailed object representation.},
	language = {en},
	number = {2},
	urldate = {2023-01-03},
	journal = {Neuron},
	author = {Lu, Yiliang and Yin, Jiapeng and Chen, Zheyuan and Gong, Hongliang and Liu, Ye and Qian, Liling and Li, Xiaohong and Liu, Rui and Andolina, Ian Max and Wang, Wei},
	month = apr,
	year = {2018},
	pages = {417--428.e3},
}

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