Abid Greyson
Department of Philosophy, University of California, Berkeley, 314 Moses Hall, Berkeley, CA 94720, USA.
Neurosci Conscious. 2019 Nov 15;2019(1):niz015. doi: 10.1093/nc/niz015. eCollection 2019.
Vision presents us with a richly detailed world. Yet, there is a range of limitations in the processing of visual information, such as poor peripheral resolution and failures to notice things we do not attend. This raises a natural question: How do we seem to see so much when there is considerable evidence indicating otherwise? In an elegant series of studies, Lau and colleagues have offered a novel answer to this long-standing question, proposing that our sense of visual richness is an artifact of decisional and metacognitive deficits. I critically evaluate this proposal and conclude that it rests on questionable presuppositions concerning the relationship between decisional and metacognitive processes, on one hand, and visual phenomenology, on the other.
视觉为我们呈现了一个细节丰富的世界。然而，在视觉信息处理方面存在一系列局限性，比如周边视觉分辨率低以及未能注意到我们未关注的事物。这就引出了一个自然而然的问题：当有大量证据表明情况并非如此时，我们为何似乎能看到这么多东西呢？在一系列精妙的研究中，刘（Lau）及其同事为这个长期存在的问题提供了一个新颖的答案，他们提出我们的视觉丰富感是决策和元认知缺陷的产物。我对这一观点进行了批判性评估，得出的结论是，它一方面基于有关决策和元认知过程与视觉现象学之间关系的可疑预设。
