Go/No-Go Task

Field	Value
Name	Go/No-Go Task
Version	main (1.0)
URL / Repository	https://github.com/TaskBeacon/GONoGO
Short Description	A task measuring the ability to respond to target stimuli and inhibit responses to non-target stimuli.
Created By	Zhipeng Cao (zhipeng30@foxmail.com)
Date Updated	2025/07/24
PsyFlow Version	0.1.0
PsychoPy Version	2025.1.1
Modality	Behavior/EEG
Language	Chinese
Voice Name	zh-CN-YunyangNeural

1. Task Overview

The Go/No-Go task is a cognitive paradigm used to assess response inhibition. In each trial, participants are presented with one of two stimuli: a “go” stimulus (a circle) or a “nogo” stimulus (a square). They are instructed to respond as quickly as possible to the “go” stimulus by pressing a key and to withhold their response to the “nogo” stimulus.

2. Task Flow

Block-Level Flow

Step	Description
Load Config	Load YAML configuration for subject, task, timing, and stimuli
Collect Subject Info	Get subject ID, name, age, and gender
Setup Triggers	Initialize trigger sender (via loopback serial)
Initialize Window/Input	Set up PsychoPy window and keyboard
Load Stimuli	Load all visual/text stimuli, convert instructions to audio
Show Instructions	Display instruction text + voice before starting
Loop Over Blocks	For each of 3 blocks: run 70 trials with generated conditions
Compute Block Feedback	Show go accuracy and nogo accuracy per block
Show Goodbye	Final message after task completion
Save Data	Save full trial-level data to CSV
Close	Close serial connection and PsychoPy window

Trial-Level Flow

Step	Description
Fixation	Present fixation cross for 0.8–1.0s with trigger
Go Trial	Present circle; wait up to 1s for a keypress; show feedback if none
No-Go Trial	Present square; wait up to 1s and record any keypresses

3. Configuration Summary

a. Subject Info

Field	Meaning
subject_id	Unique participant number (101–999)
subname	Participant name (pinyin)
age	Age (5–60)
gender	Gender (Male or Female)

b. Window Settings

Parameter	Value
size	[1920, 1080]
units	deg
screen	1
bg_color	gray
fullscreen	True
monitor_width_cm	60
monitor_distance_cm	72

c. Stimuli

Name	Type	Description
fixation	text	White cross “+”
go	circle	White circle
nogo	rect	White square
no_response_feedback	text	Message shown if participant fails to respond on a go trial
block_break	text	Inter-block feedback with go and nogo accuracy
instruction_text	textbox	Full task instructions with keys
good_bye	textbox	Final screen thanking participant

d. Timing

Phase	Duration (s)
fixation	random 0.8–1.0
go/nogo stimulus (max duration)	1.0
no-response feedback	0.8

e. Triggers

Event	Code
exp_onset	98
exp_end	99
block_onset	100
block_end	101
fixation_onset	1
go_onset	10
go_response	11
go_miss	12
nogo_onset	20
nogo_response	21
nogo_miss	22
no_response_feedback_onset	30

4. Methods (for academic publication)

Participants completed a Go/No-Go task designed to evaluate response inhibition. The task consisted of 3 blocks, each containing 70 trials, resulting in a total of 210 trials. On each trial, participants saw either a circle (“go” stimulus) or a square (“nogo” stimulus). They were instructed to press a key as quickly and accurately as possible when they saw the circle and to withhold their response when they saw the square. On 75% of the trials, the go stimulus was presented. Trials began with a fixation cross (0.8–1.0s), followed by a go or nogo stimulus. The stimulus remained on screen for up to 1 second. If no response occurred on a go trial, a warning message was presented. Participants received a break after each block, displaying their accuracy for both go and nogo trials.