Cognitive biases can affect decision-making at the blackjack table by distorting a player's perception of odds and outcomes. For example, the gambler's fallacy may lead players to believe that after a series of losses, a win is due, prompting riskier bets. Confirmation bias can cause players to focus on instances where risky moves paid off, while ignoring when they led to losses. The sunk cost fallacy might push players to continue betting to recover past losses, even when it's unwise.