School of Psychology, University of Sydney, Sydney, Australia.
Institute for Infocomm Research, Agency for Science, Technology and Research, Singapore, Singapore.
Sci Rep. 2020 Oct 30;10(1):18739. doi: 10.1038/s41598-020-75252-w.
Short-term deprivation (2.5 h) of an eye has been shown to boost its relative ocular dominance in young adults. Here, we show that a much shorter deprivation period (3-6 min) produces a similar paradoxical boost that is retinotopic and reduces spatial inhibition on neighbouring, non-deprived areas. Partial deprivation was conducted in the left hemifield, central vision or in an annular region, later assessed with a binocular rivalry tracking procedure. Post-deprivation, dominance of the deprived eye increased when rivalling images were within the deprived retinotopic region, but not within neighbouring, non-deprived areas where dominance was dependent on the correspondence between the orientation content of the stimuli presented in the deprived and that of the stimuli presented in non-deprived areas. Together, these results accord with other deprivation studies showing V1 activity changes and reduced GABAergic inhibition.
短期剥夺（2.5 小时）一只眼睛已经被证明可以增强年轻人的相对眼优势。在这里，我们表明，更短的剥夺时间（3-6 分钟）会产生类似的反常增强，这种增强是视网膜定位的，并减少了对相邻非剥夺区域的空间抑制。部分剥夺是在左视野、中央视野或环形区域进行的，然后用双眼竞争跟踪程序进行评估。剥夺后，当竞争图像在剥夺的视网膜区域内时，被剥夺眼睛的主导地位增加，但在相邻的非剥夺区域内，主导地位取决于在剥夺和非剥夺区域内呈现的刺激的方向内容之间的对应关系。总之，这些结果与其他剥夺研究一致，表明 V1 活动的变化和 GABA 能抑制的减少。
