TEST
Balloon Analogue Risk Task (BART)
Decision-making under risk in conditions of uncertainty
Balloon Analog Risk Task (Lejuez et al., 2002): a gamified paradigm for measuring “hot” executive functions. It quantifies risk propensity, sensitivity to punishment, and learning of implicit probabilities with proven ecological validity against substance use, pathological gambling, and risk behaviors.
60
BALLOONS
3
RISK LEVELS
64/16/4
MEAN EXPLOSION (Y/G/B)
€
INCREMENTAL REWARD
WHAT THE TEST IS
Inflate to earn more, but without letting it burst
Developed by Lejuez et al. (2002), the BART is one of the most widely used behavioral paradigms for measuring risk propensity. Its ecological validity has been demonstrated by correlating results with real-life behaviors such as substance use, pathological gambling, or dangerous driving.
Each decision activates a basic dilemma: inflate more to earn more, assuming the risk of losing everything, or cash out and secure the gain. Since the probabilities of explosion are not revealed, the user must learn them implicitly throughout the task. It assesses “hot” executive functions—where reward, motivation, and emotion modulate the decision—and is sensitive to inhibitory control, sensitivity to punishment, and risk aversion/seeking.
HOW IT IS ADMINISTERED
60 balloons, three colors, different risks
In each trial, the user sees a balloon and two buttons: inflate (each pump increases the pending gain, but also the probability of explosion) or cash out (secures the gain and moves on to the next one). If the balloon bursts, the user loses the entire pending gain.
The test presents 60 balloons in three colors with different probabilities (not revealed): yellow balloons burst on average after 64 pumps (low risk), green after 16, and blue after 4 (high risk). The first 30 are pseudo-random; the next 30 come in single-color blocks, which makes it possible to analyze implicit learning of the probability associated with each color.
WHAT THE TEST MEASURES
Indicators and their interpretation
The combination of metrics makes it possible to differentiate between impulsive profiles (many explosions, high gain or loss) and hypercautious profiles (few explosions, low gain).
Adjusted pumps (yellow)
Average number of pumps in unexploded yellow balloons. The classic BART metric: the more the user inflates in safe conditions, the greater their willingness to take risks.
High: sensation seeking, impulsivity.
Low: risk aversion, possible apathy or insecurity.
Pumps in blue balloons
Average number of pumps in high-risk balloons (they burst on average after 4). An acute indicator of extreme risk-taking and implicit learning.
> 4: insensitivity to punishment, lack of learning.
1-2: adequate recognition of high risk.
Number of explosions
Total number of balloons lost by not cashing out in time. A direct indicator of maladaptive risk behavior.
Many explosions: impulsivity, inhibitory failure, bias toward immediate reward.
Few explosions + low gain: hypercaution.
Total gain
Amount accumulated at the end. A global measure of effectiveness: good gain requires a balance between taking enough risks and knowing when to stop in time.
High gain: adaptive decision-making.
Low: excessive caution or recklessness (interpret with explosions).
Reaction time
Mean time to inflate or cash out. Reflects the user’s deliberative vs. automatic style.
Short RT: automatic response, possible impulsivity.
Long RT: cautious deliberation, slowing, or anxious hesitation.
Learning by color
Difference in pumps between the first and second half for each color. Measures whether the user adjusts their behavior after experiencing the risk.
Appropriate adjustment: learns to inflate yellow balloons more and stop earlier with blue balloons.
No adjustment: lack of learning of implicit probabilities.
REFERENCES
Bibliography
- Lejuez, C. W., Read, J. P., Kahler, C. W., Richards, J. B., Ramsey, S. E., Stuart, G. L., Strong, D. R., & Brown, R. A. (2002). Evaluation of a behavioral measure of risk-taking: The Balloon Analogue Risk Task (BART). Journal of Experimental Psychology: Applied, 8(2), 75–84.
- Lejuez, C. W., Aklin, W. M., Zvolensky, M. J., & Pedulla, C. M. (2003). Evaluation of the BART in young adolescent smokers. Journal of Adolescence, 26(4), 475–479.
- Compagne, C., Mayer, J. T., Gabriel, D., Comte, A., Magnin, E., Bennabi, D., & Tannou, T. (2023). Updates on the BART: A systematic review. Frontiers in Psychology, 14, 1138788.
- Canning, J. R., Schallert, M. R., & Larimer, M. E. (2022). A systematic review of the BART. Cognitive Therapy and Research, 46, 1085–1107.
- Weafer, J., Milich, R., & Fillmore, M. T. (2011). Behavioral components of impulsivity predict alcohol consumption in adults with ADHD. Drug and Alcohol Dependence, 113(2-3), 139–146.
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An ecological measure of decision-making under risk, validated against real-life risk behaviors. Especially useful in addictions, frontal TBI, and impulse-control pathology.
