Data for: Age-related decline in disengaging spatial attention in physiological aging (Pedale et al. 2024) Brain Sciences

ANT DESCRIPTION
Each trial consisted of the presentation of an initial black fixation cross (on a grey background) for a duration ranging from 400 to 1600 ms. After this interval, an attentional cue could be presented for 100 ms. The cue could either replace the fixation point (i.e., “central cue” condition), be presented both above and below the fixation point (i.e., “double cue” condition), or be presented either above or below the fixation point (i.e., “spatial cue” condition). Otherwise, no cue was presented (i.e., “no cue” condition). After a short fixation period of 400 ms, the target appeared. This consisted of a central black triangle-arrow presented above or below the central fixation point, vertically aligned with the centre of the display. The target triangle-arrow could be oriented either on the left or right side. The target triangle-arrow could be presented along with black squares (“neutral” trials) or along with flanking triangle-arrows oriented toward the same (“congruent” trials) or the opposite direction (“incongruent” trials). The participants were asked to discriminate the left vs. right target orientation by pressing as quickly as possible one of two response keys, within a temporal window of 1700 ms.

THE DATA FILE

The data file (ANT_data.xls) contains the data from the 60 participants.
Each row represent a single trial.

Description of each column of the ANT_data file:

ID: Unique anonymized participant identifier.
AGE: Age of participant (in years).
CUE: Cue type (“No cue”, “Central Cue”, “Spatial Cue”, “Double Cue”).
FLANKER: Flanker type (“Congruent”, “Incongruent”, “Neutral”).
RT: Response time in milliseconds. The cell is empty in case of no response within the time window of 1.7 sec.
ACC: Accuracy value (1 for a correct response, and 0 for an incorrect response).

ANT 实验描述
每个试次（trial）首先呈现初始黑色注视十字（fixation cross），背景为灰色，呈现时长为400至1600毫秒。该间隔结束后，注意线索（attentional cue）将呈现100毫秒。线索可分为四种类型：替换注视点的"中央线索（central cue）"条件、同时呈现于注视点上下方的"双线索（double cue）"条件、仅呈现于注视点上方或下方其中一侧的"空间线索（spatial cue）"条件，以及无线索呈现的"无线索（no cue）"条件。经过400毫秒的短暂注视间隔后，靶刺激（target）出现。该靶刺激为呈现于中央注视点上下方、与显示区域中心垂直对齐的黑色三角箭头（triangle-arrow），其朝向可为左侧或右侧。靶刺激可伴随黑色方块呈现（即"中性试次（neutral trials）"），或伴随朝向与靶刺激一致（即"一致试次（congruent trials）"）或相反（即"不一致试次（incongruent trials）"）的侧翼三角箭头（flanker triangle-arrows）呈现。要求被试通过尽快按下两个反应按键中的一个，判断靶刺激的左右朝向，反应时限为1700毫秒。

数据文件
本数据文件（ANT_data.xls）包含60名被试的实验数据。数据文件中每一行代表单个试次。
ANT_data文件各列的含义如下：
ID：唯一的匿名化被试标识符。
AGE：被试年龄，单位为年。
CUE：线索类型，取值包括"No cue"、"Central Cue"、"Spatial Cue"、"Double Cue"。
FLANKER：侧翼刺激类型，取值包括"Congruent"、"Incongruent"、"Neutral"。
RT：反应时，单位为毫秒。若被试在1.7秒的时限内未作出反应，则该单元格为空。
ACC：准确率数值，1代表正确反应，0代表错误反应。