Psychological Principles of Slot Machines


While slot machines may be considered “tricks” by many, their true purpose is to entertain us. Slot machines are fun distractions that aim to keep us engaged for a long time. They also offer us insight into the human mind and psyche. Let’s take a look at some of the psychological principles behind the design of a slot. Read on to learn more. We can also learn about the role of Scatter and Wild symbols.

Payback percentage

Knowing the payback percentage of slot machines is crucial to maximize your winnings. A machine’s payback percentage represents the average of all bets placed on it. Thus, a 94% payout machine has a 6% house edge. The higher the payback percentage, the better, since the house edge fluctuates and increases with random events. Nonetheless, a good rule of thumb is to play on machines with a high payback percentage.

Bonus events

Slot bonus events are special rounds that are triggered by specific symbols in video slots. These symbols may be scatters, the slot’s main character, or the game’s logo. The bonus events are generally played for free and may award additional reels and free spins. In addition, the player may be awarded random prizes. Luckily, there is an easy way to find out whether or not a bonus event is offered in a particular game.

Wild symbols

The essence of any slot machine is the symbol, and the symbols dictate how the machine will work, what will happen when you win, and when you lose. While different slot machines will use different symbols, they all share one important feature: wild symbols. Wild symbols are the most common special symbol in gaming, and they are present in nearly every new slot game. But if you’re a beginner, you might be confused by the various types of wild symbols.


While most of the slot machines have some form of multiplier, most of them support the appearance of one during base play. If you land on five Limo symbols, for example, you would win twice as much as you would have if you’d landed on just one. Multipliers, in general, only affect the wins when multiple symbols appear on a payline or combo. In other words, if you land five Limo symbols, you’d win twice as much as you had bet!

Jackpot payouts

While individual jackpot payouts are closely guarded secrets of the casino industry, there are several factors that can influence them. For example, many slots have a high payout percentage, and winning a jackpot may increase the player’s expectation of a future win. Also, players who win jackpots with their friends often increase their bets by 21 percent. However, one factor that can affect the likelihood of a jackpot is the casino’s advertising of these payouts.