2021
DOI: 10.1016/j.cub.2020.11.027
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Orientation Preference Maps in Microcebus murinus Reveal Size-Invariant Design Principles in Primate Visual Cortex

Abstract: Highlights d Mouse lemur V1 possesses orientation preference maps with pinwheel arrangement d The size and statistics of mouse lemur V1 pinwheels are comparable to the macaque d Orientation preference columns only weakly scale with body size in primates

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Cited by 23 publications
(23 citation statements)
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“…It was especially surprising that the mouse lemur, a tiny (~60-80 g) prosimian primate species [37], could segment purely motion-defined figures well above chance, while the treeshrew (~120-200 g), an animal with a much more highly developed visual system than the mouse [38][39][40], could not. Overall, our findings reveal a fundamental difference in the computational strategy used by mice versus primates for visual segmentation and suggest that surface perception from accretion-deletion may be a capability unique to primates.…”
Section: Discussionmentioning
confidence: 99%
“…It was especially surprising that the mouse lemur, a tiny (~60-80 g) prosimian primate species [37], could segment purely motion-defined figures well above chance, while the treeshrew (~120-200 g), an animal with a much more highly developed visual system than the mouse [38][39][40], could not. Overall, our findings reveal a fundamental difference in the computational strategy used by mice versus primates for visual segmentation and suggest that surface perception from accretion-deletion may be a capability unique to primates.…”
Section: Discussionmentioning
confidence: 99%
“…Equation ( 3) gives the PWC density in terms of the PWC separation in the hexagonal lattice. Some previous works argued for a universal PWC density in aperiodic arrangements of PWCs, expressed in terms of the mean periodicity Λ of OP, independent of species [22,33,34], with…”
Section: Possible Od-op-dp Topologiesmentioning
confidence: 99%
“…And the pinwheel spacing a of the hexagonal lattice that is derived from these three data sets. ρ (mm −2 ) λ ⊥ (mm) Λ (mm) a from λ ⊥ (mm) a from ρ (mm) a from Λ (mm) Human [59] 2.24 1.17 ± 0.08 1.43 ± 0.12 0.78 ± 0.05 0.68 0.65 ± 0.05 Macaque [22,44,45]…”
Section: Possible Od-op-dp Topologiesmentioning
confidence: 99%
“…For example, while the selective responses of neurons in the visual cortex to the orientation of edges follows a well-defined pinwheel-like organization in cats (Bonhoeffer and Grinvald, 1991;Ohki et al, 2006), similar patterns are generally thought to be absent in rodents (Van Hooser et al, 2005), although some, much looser, functional organization has recently been described in mice (Fahey et al, 2019;Ringach et al, 2016). The exact implications of differences in functional organization in these areas are still under debate, in particular how brain size, etiological and environmental demands on specific aspects of stimulus processing might favor one architecture over another (Ho et al, 2021;Koch et al, 2016;Swindale et al, 2000).…”
Section: Introductionmentioning
confidence: 97%