Flankers-NEAR

Data collection took place at the NeuroCognition Laboratory (NCL) in San Diego, California under the supervision of Dr. Phillip Holcomb and Dr. Karen Emmorey. This project followed the San Diego State University’s IRB guidelines.

Participants sat in a comfortable chair in a darkened, sound-attenuated room throughout the experiment. They were given a game controller for responding to stimuli. They were instructed to watch the 24in-LCD video monitor, which was placed at a viewing distance of 60 in (152 cm).

Participants were presented with 90 four-letter real words and 90 four-letter pseudowords in white New Courier font on a black background. Each letter subtended .41 degrees of visual angle. The flanker words were separated from the center target word by .41 degrees of empty space on both sides. All targets and flankers were content words under a 6th grade reading level; plural words and proper nouns were excluded. All words were presented once in each of the three conditions: no flanker, identical flankers, or different flankers. There were 270 trials. Trials started with a purple fixation cross for 1000ms, followed by a white fixation cross for 500ms to prepare participants for the presentation of the stimulus. The stimulus item was then presented for 150ms, followed by a blank screen shown until participants responded via the game controller.

本实验的数据采集工作于美国加利福尼亚州圣迭戈的神经认知实验室（NeuroCognition Laboratory, NCL）开展，由Phillip Holcomb博士与Karen Emmorey博士担任监督负责人，本项目严格遵循圣迭戈州立大学机构审查委员会（Institutional Review Board, IRB）的相关指南。

实验全程中，所有被试均坐在隔音暗室内的舒适座椅上，配备游戏手柄用于响应刺激。实验要求被试注视距离观看位置60英寸（152厘米）的24英寸LCD视频显示器。

向被试呈现共计180个刺激项，其中90个为四字母真实单词，90个为四字母假词，所有词汇以白色New Courier字体呈现在黑色背景之上。每个字母的视觉视角为0.41度。侧翼词与中央靶词的两侧均相隔0.41度的空白间距。所有靶词与侧翼词均为六年级阅读难度以下的实义词，排除复数形式词汇与专有名词。所有词汇分别在三种实验条件下各呈现一次：无侧翼刺激、侧翼词与靶词一致、侧翼词与靶词不一致，总计270个试次。每个试次的流程为：先呈现紫色注视十字1000毫秒，随后呈现白色注视十字500毫秒，使被试做好接收刺激的准备；刺激项呈现时长为150毫秒，之后保持黑屏直至被试通过游戏手柄做出反应。