Individual differences in Scanpaths correspond with serotonin transporter genotype and behavioral phenotype in rhesus monkeys (Macaca mulatta).
Individual differences in Scanpaths correspond with serotonin transporter genotype and behavioral phenotype in rhesus monkeys (Macaca mulatta).
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DOI：
10.3389/neuro.08.050.2009
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发表时间：
2009
影响因子：
3
通讯作者：
Gothard KM
中科院分区：
文献类型：
--
作者：
Gibboni RR;Zimmerman PE;Gothard KM
扫描路径（自发观看期间的连续注视和扫视）包含关于图像的信息，也包含关于观看者的信息。为了确定猴子的扫描路径中的观众依赖因素，我们训练了三个成年男性（猕猴）寻找3秒的同类面部表情的图像，无论是直接或回避的目光。当观察相同的面部表情/注视方向组合时，受试者在四个基本扫描路径参数（注视次数、注视持续时间、扫视长度和总扫描路径长度）上表现出显著差异。此外，我们发现猴子之间的差异，在功能偏好和时间顺序中，功能访问不同的面部表情。总体而言，受试者之间的变异性大于受试者内的变异性，这表明扫描路径反映了个体在将视觉注意力分配给攻击性、中性和安抚性面部表情中的各种特征时的偏好。个体扫描路径特征与5-羟色胺转运体调节基因（5-HTTLPR）的基因型和行为特征（如在潜在危险物体存在下接近食物时的预期焦虑和冲动/犹豫）进行了登记。
Scanpaths (the succession of fixations and saccades during spontaneous viewing) contain information about the image but also about the viewer. To determine the viewer-dependent factors in the scanpaths of monkeys, we trained three adult males (Macaca mulatta) to look for 3 s at images of conspecific facial expressions with either direct or averted gaze. The subjects showed significant differences on four basic scanpath parameters (number of fixations, fixation duration, saccade length, and total scanpath length) when viewing the same facial expression/gaze direction combinations. Furthermore, we found differences between monkeys in feature preference and in the temporal order in which features were visited on different facial expressions. Overall, the between-subject variability was larger than the within- subject variability, suggesting that scanpaths reflect individual preferences in allocating visual attention to various features in aggressive, neutral, and appeasing facial expressions. Individual scanpath characteristics were brought into register with the genotype for the serotonin transporter regulatory gene (5-HTTLPR) and with behavioral characteristics such as expression of anticipatory anxiety and impulsiveness/hesitation in approaching food in the presence of a potentially dangerous object.
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影响因子：
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通讯作者：
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