PASAT-C — Demo

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Task Version

Choose a pre-configured version or build your own.

Original

Lejuez Classic

Digits 0–20, two-row button pad, standard timing. Faithful to the original Lejuez et al. software.

Updated

Modern

Digits 0–9, circular button pad, standard timing. Based on the Millisecond implementation.

Advanced

Custom

Full control over timing, button layout, display, and all task parameters.

Button Layout Two-Row (1–20)
Digits 0–20, sums up to 20
Timing ISI 3s / 2s / 1.5s — Durations 3m / 5m / 10m
Rest Break 2 minutes between Level 2 and 3
Positive Reinforcement Off
Level & Timer Display Hidden

Timing

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Level ISI (ms) Duration Notes
Level 1 sec Seamless transition to Level 2
Level 2 sec Followed by rest break
Level 3 sec Participant can quit
Break between Level 2 and Level 3
Get Ready → Get Set → Go countdown

Button Layout & Digit Rules

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The button layout determines which digit range and maximum sum are used. The circular pad displays buttons 1–18 arranged around the center number display; the two-row pad displays 1–20 in two horizontal rows beneath it.
Determined by the button layout.
Determined by the button layout.

Display & Feedback

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Positive Reinforcement
Play a tone and green flash on correct responses. Off by default per standard protocol.
Show Level & Timer
Display level indicator and elapsed time during the task. Hidden by default to prevent clock-watching.

Mood Ratings

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Enable Mood Ratings
Show 6-item mood scales (Anxiety, Happiness, Contentment, Distress, Frustration, Irritability) before and after the task.

Task Dimensions

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Fixed pixel size ensures consistent motor demands across participants.

Demo mode — data stays local. Use the Researcher Portal to create experiments that save to the cloud.