Cambridge Gambling Task (CGT)
In this task, you decide between red and blue based on the ratio of colored boxes and choose a stake to quantify risk preference and decision‑making under uncertainty. Results include average stake, choice bias, and total outcome; data export supports analysis.
Gambling Risk Notice
This task is an educational experiment. If you or someone you know is experiencing gambling-related problems, please seek professional help.
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Overview
Choose a color based on displayed probabilities and set a stake to assess risk preference and decision strategy.
How to operate
Use the probability cue, pick the more likely color, set your bet size, and complete 20 consecutive trials in one run.
Reported metrics
Average stake, red/blue choice rate, quality of decision (the share of trials where you chose the more likely color), mean deliberation time, total gain, and full per-trial decisions. These are descriptive metrics from a demonstration run against known per-trial odds; they are not clinical measures of impulsivity or risk-taking.
Export
CSV/JSON export is supported for statistical analysis and modeling.
Source
This online adaptation is based on the Cambridge Gambling Task introduced by Rogers et al. (1999), which studies decision making and risk‑taking under uncertainty. It is an educational replica, not the clinical assessment instrument.
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References
- Rogers, R. D., Everitt, B. J., Baldacchino, A., Blackshaw, A. J., Swainson, R., Wynne, K., ... Robbins, T. W. (1999). Dissociable deficits in the decision-making cognition of chronic amphetamine abusers, opiate abusers, patients with focal damage to prefrontal cortex, and tryptophan-depleted normal volunteers. Neuropsychopharmacology, 20(4), 322-339. 10.1016/S0893-133X(98)00091-8
- Manes, F., Sahakian, B., Clark, L., Rogers, R., Antoun, N., Aitken, M., & Robbins, T. W. (2002). Decision-making processes following damage to the prefrontal cortex. Brain, 125(3), 624-639. 10.1093/brain/awf049
- Deakin, J., Aitken, M., Robbins, T., & Sahakian, B. J. (2004). Risk taking during decision-making in normal volunteers changes with age. Journal of the International Neuropsychological Society, 10(4), 590-598. 10.1017/S1355617704104104
About This Experiment
This experiment is an educational adaptation for demonstration purposes. It is not a clinical diagnostic tool. Results reflect your performance in this specific session and should not be interpreted as an assessment of your cognitive abilities.
Data Privacy
Your experiment data is processed and stored locally in your browser. No data is uploaded to any server unless you explicitly export it.
