This article states that adolescents and young adults are vulnerable to gambling-related cognitive distortions and that these distortions include mistaken beliefs about chance, skill, and control. It also explicitly links adolescent gambling problems with erroneous cognitions, exaggerated skill beliefs, and little pragmatic understanding of randomness and independence of events.

Based on analyses of data from over 900 individuals between the ages of 10 and 30, they noted that **cognitive capacity—the basic cognitive processes supporting the ability to reason logically—matures by 16**, whereas **psychosocial maturity—the capacity to exercise self-restraint, especially in emotionally-arousing contexts—does not fully mature until several years later**. We hypothesized that cognitive capacity would reach adult levels *prior* to age 18 and plateau in mid-adolescence, but that psychosocial maturity would not reach adult levels until after 18, into the 20s. Findings from the present study are consistent with previous reports that cognitive capacity (cold cognition)… **reaches adult levels during the mid-teen years**, whereas… psychosocial functioning (hot cognition)… tends to reach adult levels into adulthood.

This article proposes a dual-process model of adolescent development that distinguishes between social-emotional and cognitive control systems. According to the model, the social-emotional system develops earlier and is remodeled in early adolescence, while the cognitive control system matures gradually over adolescence and into young adulthood. The authors note that this imbalance means that, even though adolescents may have adult-like logical reasoning in cold contexts, they are more likely than adults to make decisions based on heuristics and biases in emotionally arousing situations.

The study reports that cognitive distortions on gambling were significantly and positively correlated with susceptibility to the gambler’s fallacy and superstitious thinking, and that illusion of control showed especially moderate to high correlations with these variables. It concludes that adolescents more prone to mistaken perceptions of probability are susceptible to cognitive distortions related to gambling.

Lagged structural development of the prefrontal cortex, particularly dorsolateral regions, has been linked to a number of functional outcomes during adolescence, including continued improvement in impulse control, working memory, and complex reasoning. As such, late development of the prefrontal cortex could constrain components of decision-making that rely heavily on deliberation or integrating complex sources of information. Although adolescents appear to have full access to many of the cognitive foundations of decision-making, several aspects of decision-making such as intertemporal choice, prospective evaluation, and integration of positive and negative feedback are not yet tuned to typical adult levels.

This study suggests **adolescents achieve the same cognitive abilities as adults at age 16 years**, but **their psychosocial maturity is not developed until their 20s**. As we noted above, during adolescence, the brain and cognitive abilities do not develop at the same rate. Regions that seek reward are more active and mature earlier than the regions controlling impulses. Nevertheless, psychosocial maturity – self-control and future orientation, especially in the presence of peers and social contexts – does not fully mature until the person is in his/her 20s. This “maturity gap” between cognitive and psychosocial development is a window of opportunity to increase the chances of making risky decisions, leading to risky behaviors during adolescence.

Between late childhood and middle adolescence (roughly between the ages of 11 and 16), individuals show marked improvements in reasoning (especially **deductive reasoning**) and in both the efficiency and capacity of information processing. Research has demonstrated conclusively that, as a result of gains in these areas, individuals become more capable of **abstract, multidimensional, deliberative, and hypothetical thinking** as they develop from late childhood into middle adolescence. These abilities **reach an asymptote sometime around 16**, and by this age, teens’ capacities for understanding and reasoning in making decisions, at least in controlled experiments, roughly approximate those of adults.

Dual-process models describe two relatively independent modes of information processing, contrasting an analytic (deliberative, controlled, reasoned, “cold”) system with an experiential (intuitive, automatic, reactive, “hot”) system. Proponents argue that changes in judgment and decision making over adolescence reflect domain-specific shifts in the relative dominance of intuition and reason rather than a simple transition from experiential to analytic processing. Evidence suggests that adolescents are capable of engaging both analytical and heuristic processing systems, but in contexts that activate salient social schemas, heuristic processing appears to gain influence over the course of adolescent development.

The study found that, relative to adults aged 20+, adolescents aged 13–19 failed to take into account value as well as probability information when making decisions in an emotional context, which resulted in more risky behavior. The paper also notes that the propensity to take account of relevant probability and reward information continued to mature between adolescence (13–18) and adulthood (20+).

From ages 12 to 18, children grow in the way they think. They move from **concrete thinking to formal logical operations**. Formal logical operations are the ability to think about **abstract concepts**, and to logically test hypotheses. This is also called **formal operational thinking**. These mental skills will continue to develop into adulthood. They allow the teen to think about possibilities, consider consequences, and engage in complex problem-solving.

Analytic processing is consciously controlled, effortful, and deliberate. Successful analytic reasoning depends on the acquisition of abilities that permit individuals to inhibit heuristic responses and to engage in systematic, rule-based thinking. Heuristic processing is relatively automatic and effortless and often based on intuitive judgments that may conflict with normative rules. Adolescents show developmental increases in analytic processing and corresponding decreases in heuristic processing, but many still fail to apply analytic strategies consistently, leading to biased or non-normative judgments on reasoning tasks.

Evidence points to a dissociation between the relatively slow, linear development of impulse control and response inhibition during adolescence versus the nonlinear development of the reward system, which is often hyper-responsive to rewards in adolescence. This suggests that decision-making in adolescence may be particularly modulated by emotion and social factors, for example, when adolescents are with peers or in other affective ('hot') contexts. Based on this approach it can be concluded that at the age of 12 children can have the capacity to be decision-making competent, but early development of the brain's reward system combined with late development of the control system diminishes decision-making competence in adolescents in specific contexts.

With data from a large sample of college students, the study found that individuals’ use of the gambler’s fallacy strategy was positively correlated with cognitive ability and negatively correlated with affective decision making ability. The paper argues that the gambler’s fallacy reflects a mismatch between cognitive and affective decision-making systems.

The dual systems model provides a far more accurate account of adolescent risk taking than prior models that have attributed adolescent recklessness to cognitive defects or irrationality. According to the model, sensation seeking and reward sensitivity increase sharply in early to middle adolescence, whereas cognitive control and self-regulation develop more gradually into the mid-20s. The asynchrony in the development of these systems helps explain why adolescents, despite having relatively mature logical reasoning, may show immature self-regulation and heightened susceptibility to risk and bias in certain decision contexts.

Few people believe that five year olds and fifteen year olds think, act or make decisions in the same way. The question is whether and how the law should take account of systematic differences between adolescents and adults in judgment and reasoning. Empirical research shows that although adolescents (around age 16) often possess cognitive abilities similar to adults in neutral contexts, they are more likely than adults to make decisions that are impulsive, short-sighted, and more strongly influenced by immediate rewards, peer influences, and emotions. This body of work points to age differences in susceptibility to decision-making biases and in the way that adolescents exercise deliberative judgment, particularly in high-stakes and emotionally charged situations.

This chapter states that adolescents with gambling problems display erroneous cognitions when gambling, report exaggerated levels of skill, have little pragmatic understanding of randomness and independence of events, and show multiple mental health problems. It presents these findings as part of the broader developmental and cognitive vulnerability of adolescent problem gamblers.

At the heart of adolescent behavioral studies is the dual systems model, which suggests that decision making is governed by two separate but interacting systems: a socioemotional system that is hypersensitive to rewards and social information, and a cognitive control system that supports deliberation and self-regulation. The socioemotional system matures more quickly, leading to a window in mid-adolescence where reward processing is strong but deliberative control is still developing. This imbalance is proposed to underlie adolescents’ greater propensity to take risks and to be influenced by peers and contextual cues when making decisions.

The thesis argues that adolescence is associated with developmental shifts in reward sensitivity, sensation-seeking, and peer influence, and that gambling during this period may lay the foundations for later pathological gambling behavior. It also describes the gambler’s fallacy as a primary example of gambling-related irrational belief.

Adolescents are now able to **analyze situations logically in terms of cause and effect** and to entertain hypothetical situations and "what-if" possibilities about the world. One manifestation of the adolescent’s increased facility with thinking about possibilities is the improvement of skill in **deductive reasoning (top-down reasoning)**, which leads to the development of **hypothetical thinking**. The behavioral decision-making theory proposes that adolescents and adults both weigh the potential rewards and consequences of an action; however, **research has shown that adolescents seem to give more weight to rewards, particularly social rewards, than do adults**.

In a study of 5227 individuals between 10 and 30 years of age from 11 countries, researchers demonstrated that **“Juveniles may be capable of deliberative decision making by 16, but even young adults may demonstrate ‘immature’ decision making in arousing situations.”** The frontal lobe does not fully mature until approximately **23–25 years of age**. The immaturity of the adolescent’s judgment center explains much of the inability of adolescents to properly interpret experiences in the environment and thus make appropriate and healthy decisions. Researchers utilizing fMRI imaging in 13 to 20 year olds found that **younger adolescents (13–18) did not increase their cognitive control performance when faced with high stakes decisions**, most likely due to decreased connectivity in their corticostriatal pathways.

Because of their idealism, they may become critical of others, especially adults in their life. Additionally, adolescents can demonstrate hypocrisy, or pretend to be what they are not. Lastly, adolescents can exhibit pseudostupidity. This is when they approach problems at a level that is too complex, and they fail because the tasks are too simple. Their new ability to consider alternatives is not completely under control and they appear “stupid” when they are in fact bright, just not experienced. Intuitive thought is easier and more commonly used in everyday life. It is also more commonly used by children and teens than by adults (Klaczynski, 2001). The quickness of adolescent thought, along with the maturation of the limbic system, may make teens more prone to emotional intuitive thinking than adults.

Dual-process accounts of reasoning postulate that there are two systems underlying thinking and reasoning: System 1, which is fast, automatic, and often linked to heuristic processing and cognitive biases, and System 2, which is slower, controlled, and associated with deliberate, analytic reasoning. System 1 processing is frequently responsible for cognitive biases such as the gambler's fallacy, the illusion of control, and optimism bias, whereas System 2 processing supports more normatively correct responding when fully engaged.

Adolescence brings the potential for **logical and theoretical reasoning, systematic problem solving, and acquisition of abstract concepts**. Cognitive skills that develop during adolescence include **hypothetical-deductive reasoning**, combinatorial reasoning, and the ability to consider multiple variables and possible outcomes. However, despite these gains, adolescents’ decision making is still influenced by emotional, social, and contextual factors, which can lead to errors in judgment.

Adolescents’ brains undergo significant changes in regions involved in **reward processing and cognitive control**, contributing to increased risk-taking and susceptibility to contextual influences when making decisions. The research shows that while adolescence is a time of **peak risk-taking behavior that may lead to impulsive decisions**, neurocognitive systems supporting adult-level cognitive control and deliberation are still developing. This developmental imbalance can make adolescents more vulnerable to decision-making biases, especially in emotionally charged or high-stakes situations.

Adolescents' cognitive development, in part, lays the groundwork for moral reasoning, honesty, and prosocial behaviors such as helping and volunteering. Their developing brains bring new cognitive skills that enhance their ability to reason and to think abstractly. However, these skills are still emerging during the teenage years, and adolescents may apply them inconsistently across different situations. Professionals working with teens should be aware that although many adolescents can reason logically in structured settings, they may still be vulnerable to errors in judgment and cognitive biases, particularly in novel, emotionally laden, or peer-influenced contexts.

This type of thinking continues to develop into adulthood. Also by age 16, teens can learn to process more complex problems and to develop and test theories. Teens understand that others have differing viewpoints. But they often firmly believe their own perception is the most true or valid. This is normal, but can be hard for parents. Between ages 15 and 18, adolescents’ ability to think abstractly and consider multiple perspectives expands, but they may still show overconfidence and difficulty fully appreciating risks and long-term consequences.

We typically transition from concrete to abstract thought during adolescence. Adolescence is a period when our coordination grows between emotion, attention and behavior. Adolescents are learning to plan, to consider possibilities and to weigh consequences, but they often still rely on quick, intuitive judgments in everyday situations. Caring adults can nurture teens’ ability to think and solve problems by encouraging decision making and discussions about complexity, recognizing that their problem-solving and deliberative reasoning skills are still developing through the late teen years.

Kahneman’s "Thinking, Fast and Slow" describes **cognitive heuristics and biases**, such as the **gambler’s fallacy, illusion of control, and optimism bias**, as products of intuitive "System 1" thinking that can override deliberative "System 2" reasoning. Although the book does not focus specifically on adolescents, it argues that **susceptibility to these heuristics is widespread in human decision making**, even among educated adults, indicating that fully developed deliberative capacity does not eliminate such biases. This framework is often applied in subsequent research on how developing decision-making systems in youth may interact with heuristics and biases.

The source defines the gambler’s fallacy as the false belief that if an event has occurred several times before in the past, it will occur less often in the future. This is useful for identifying the specific heuristic named in the claim, but it does not by itself establish adolescent susceptibility.

According to the dual process theory of decision-making, System 1 represents intuitive, automatic, 'gut' decisions, while System 2 represents slow, logical, and controlled decisions. System 1 processing has been associated with emotional, heuristic-based judgments, whereas System 2 underlies reflective and deliberative decision making. Developmental applications of this framework suggest that as cognitive control and working memory capacities increase during adolescence and into young adulthood, individuals become better able to engage System 2 to override heuristic responses, although this engagement is context-dependent.