Delorme A, Richard G, Fabre-Thorpe M
Centre de Recherche Cerveau et Cognition (UMR 5549), Faculté de Médecine de Rangueil, 133, route de Narbonne, 31062, Toulouse, France.
Vision Res. 2000;40(16):2187-200. doi: 10.1016/s0042-6989(00)00083-3.
In a rapid categorisation task, monkeys and humans had to detect a target (animal or food) in briefly flashed (32 ms) and previously unseen natural images. Removing colour cues had very little effect on average performance. Impairments were restricted to a mild accuracy drop (in some human subjects) and a small reaction time mean increase (10-15 ms) observed both in monkeys and humans but only in the detection of food targets. In both tasks, accuracy and latency of the fastest behavioural responses were unaffected, suggesting that such ultra-rapid categorizations could depend on feed-forward processing of early coarse achromatic magnocellular information.
在一项快速分类任务中，猴子和人类必须在短暂闪现（32毫秒）且此前从未见过的自然图像中检测目标（动物或食物）。去除颜色线索对平均表现几乎没有影响。损伤仅限于轻微的准确率下降（在一些人类受试者中）以及在猴子和人类身上均观察到的反应时间平均小幅增加（10 - 15毫秒），但仅在食物目标检测中出现。在这两项任务中，最快行为反应的准确率和潜伏期均未受影响，这表明此类超快速分类可能依赖于早期粗略消色差大细胞信息的前馈处理。
