Sedgewick Jennifer R, Weiers Bradley, Stewart Aaron, Elias Lorin J
Department of Psychology, University of Saskatchewan Saskatoon, SK, Canada.
Department of Computer Science, University of Saskatchewan Saskatoon, SK, Canada.
Front Hum Neurosci. 2015 May 6;9:251. doi: 10.3389/fnhum.2015.00251. eCollection 2015.
Individuals tend to perceive the direction of light to come from above and slightly from the left; it has been speculated that this phenomenon is also producing similar lighting preferences within 2-dimensional artworks (e.g., paintings, advertisements). The purpose of the present study was to address if lighting bias was present in the 3-dimensional medium of sculpture by implementing a virtual art gallery lighting paradigm. Thirty-nine participants completed a computer task that consisted of 48 galleries each containing one sculpture (24 original sculptures, 24 mirror-reversed) which was surrounded by eight lights (above/below, left/right, front/back). Participants would select one light source to illuminate the sculpture in a manner they perceived to be the most aesthetically pleasing. The results indicated a significant preference for lights positioned from above and from the right, a finding that is contradictory to previous lighting bias research examining artworks. An interpretation for the rightward bias applies the perceptual concept of subjective lighting equality. Objects illuminated from the left typically appear brighter in comparison to right-side lighting; in sculpture, however, increased luminosity can reduce the sculptural detail, and may have been compensated via right-side lighting choices within the lighting task.
人们倾向于认为光线来自上方且略微偏左；据推测，这种现象在二维艺术作品（如绘画、广告）中也会产生类似的照明偏好。本研究的目的是通过实施虚拟艺术画廊照明范式，探究雕塑这一三维媒介中是否存在照明偏差。39名参与者完成了一项计算机任务，该任务包含48个画廊，每个画廊中有一件雕塑（24件原创雕塑，24件镜像反转雕塑），雕塑周围有八盏灯（上方/下方、左/右、前/后）。参与者会选择一个光源，以他们认为最美观的方式照亮雕塑。结果表明，参与者对来自上方和右侧的灯光有显著偏好，这一发现与之前研究艺术作品的照明偏差研究结果相矛盾。对向右偏差的一种解释运用了主观照明平等的感知概念。与右侧照明相比，从左侧照亮的物体通常看起来更亮；然而，在雕塑中，增加亮度会减少雕塑细节，照明任务中的右侧照明选择可能对此起到了补偿作用。
