Task-switching data

The research data includes reaction time data and eyeblink responses measured by reflectance of an infra-red light source directed at the eye from 80 participants collected between July and October 2012. There are four groups of participants: uninformed, informed, random, and relational.The first data sheet, (Task Switching Data Eyeblink CRs.csv) is a summary of the proportion of conditioned eyeblink responses during the CS+ and CS- stimuli for each block of 40 trials (10 CS+ and 30 CS-). Responses which conform to voluntary form responses are removed from consideration. The Group that each participant belonged to and their awareness status are indicated on the data sheet.The second data sheet, (Task Switching Data RTs for Go NoGo.csv) is a summary of the reaction times in response to the tone stimulus presentations during the conditioning phase of the experiment average across each block of 40 trials (30 tone trials and 10 airpuff trials). Trials on which there was a 1-back response required (10 trials per block of 40) or the response occurred before the tone was presented are removed from consideration. The Group that each participant belonged to and their awareness status are indicated on the data sheet.The third data sheet, (Task Switching Data RTs for 1-back task.csv) is a summary of the accuracy and reaction times in response to the 1-back trials during the conditioning phase of the experiment averaged across each block of 40 trials (10 1-back trials per block) in the uninformed and relational groups.The original data files are provided in zipped format as tab delimited text files (.txt) where each row of data represents a trial. The first column is the trial number. The second column is the trial type, which is coded as a number. The third column is the time since the beginning of the trial at which button 1 was pressed, 0 if never pushed during trial. The fourth column is the time since the beginning of the trial at which button 1 was pressed a second time during the trial, 0 if not pressed twice. The fifth column is the time since the beginning of the trial at which button 5 was pressed, 0 if never pressed. The sixth column is the time since the beginning of the trial at which button 5 was pressed a second time during the trial, 0 if not pressed twice. The next 265 columns are the voltage value of the infrared light detector, which measures the reflectance of light from the eye, during the 2560ms duration of the trial. Button 1 was used to respond in the Go/NoGo task and Button 5 was used to respond in the 1-back task.

本研究数据集涵盖2012年7月至10月间，从80名被试处采集的反应时数据，以及通过指向眼部的红外光源反射率测量得到的眨眼反应数据。被试共分为四组：未告知组（uninformed）、告知组（informed）、随机组（random）与关系组（relational）。
首个数据表《Task Switching Data Eyeblink CRs.csv》汇总了每40试次（含10个CS+与30个CS-刺激，其中CS为条件刺激Conditioned Stimulus）区块内，被试在CS+与CS-刺激下的条件性眨眼反应占比。本数据集已剔除符合自主反应形式的有效反应，数据表中标注了每名被试所属组别及其意识状态。
第二个数据表《Task Switching Data RTs for Go NoGo.csv》汇总了实验条件化阶段中，被试对音调刺激的反应时数据，数据为每40试次区块（含30个音调试次与10个空气喷吹试次）的平均值。本数据集已剔除存在1-back反应要求（每40试次区块内含10个此类试次）或反应早于音调呈现的试次，数据表中标注了每名被试所属组别及其意识状态。
第三个数据表《Task Switching Data RTs for 1-back task.csv》汇总了实验条件化阶段中，未告知组与关系组被试在1-back试次下的准确率与反应时数据，数据为每40试次区块（每区块含10个1-back试次）的平均值。
本数据集的原始文件以压缩包形式提供，为制表符分隔的文本文件（.txt），每一行代表一组试次。各列含义如下：第一列为试次编号；第二列为试次类型，以数字编码；第三列为试次开始至按下1号按键的时间间隔，若试次期间未按下该按键则记为0；第四列为试次开始至第二次按下1号按键的时间间隔，若未进行两次按键则记为0；第五列为试次开始至按下5号按键的时间间隔，未按下则记为0；第六列为试次开始至第二次按下5号按键的时间间隔，未进行两次按键则记为0；后续265列为试次全程2560ms时长内，红外光检测器采集的电压值，该数据用于测量眼部的光反射率。其中，1号按键用于Go/NoGo任务（Go/NoGo Task）的反应输入，5号按键用于1-back任务（1-back Task）的反应输入。