Busey T A, Loftus G R
Department of Psychology, Indiana University, Bloomington 47405, USA.
J Exp Psychol Hum Percept Perform. 1998 Aug;24(4):1188-214. doi: 10.1037//0096-1523.24.4.1188.
Mechanisms underlying the binocular combination of visual information were investigated within the context of a visual information acquisition theory proposed by Loftus, Busey, and their colleagues (e.g., as described by T.A. Busey & G. R. Loftus, 1994). A central assumption of the theory is that of a sensory threshold, which engenders an information loss such that information processing subsequent to the threshold is assumed to occur only when the magnitude of a sensory representation triggered by the stimulus exceeds the threshold. The presumed sensory threshold may be situated prior to or subsequent to the point at which the information from the two eyes combines. The location of this threshold was investigated in 3 experiments that provided conclusions about the location of the sensory thresholds and the mechanisms of binocular combination. It is concluded that a linear summation mechanism, an independent sampling information acquisition model, and both pre- and postcombinatorial sources of information loss are required to account for the data.
在洛夫特斯、布西及其同事提出的视觉信息获取理论（例如，如T.A.布西和G.R.洛夫特斯在1994年所描述的）背景下，研究了视觉信息双目组合的潜在机制。该理论的一个核心假设是存在一个感觉阈值，这会导致信息丢失，即假设只有当刺激触发的感觉表征的强度超过阈值时，阈值之后的信息处理才会发生。假定的感觉阈值可能位于双眼信息合并点之前或之后。在3个实验中对这个阈值的位置进行了研究，这些实验得出了关于感觉阈值位置和双目组合机制的结论。得出的结论是，需要一个线性求和机制、一个独立采样信息获取模型以及组合前和组合后的信息丢失源来解释这些数据。
