Pepper Partners continues to explore how players react to different slot outcomes. In the latest stage of the research, EEG technology was used to track the brain activity of 23 participants across 120 rounds. The results supported the findings from the earlier heart rate study and added a deeper neurophysiological perspective.
A "near miss" happens when a player comes just one symbol short of a win. At first glance, it may look like one simple outcome, but the research shows that there are at least two different types — and they affect players in opposite ways.
A "near miss" happens when a player comes just one symbol short of a win. At first glance, it may look like one simple outcome, but the research shows that there are at least two different types — and they affect players in opposite ways.
Two Types of "Near Misses"
🔵 Classic near miss: the player sees an almost winning combination before the final result is revealed. The feeling of "I was so close" is experienced as one complete emotional reaction.
🔵 After-loss near miss: the losing symbol appears first, so the player already understands that the round is lost. Only after that do the winning symbols appear, creating two emotional moments in a row: first "I lost," then "I almost won."
What the Brain Revealed
🔴 A classic near miss activates the brain in a way that is similar to an actual win — it increases engagement and encourages the player to continue.
🔴 An after-loss near miss creates a stronger negative reaction than a regular loss, because the player experiences a kind of double stress.
🔴 The brain processes positive outcomes more slowly, around 500 ms, while negative outcomes are processed faster, around 300 ms. This fits an evolutionary pattern: potential threats need to be recognized quickly.
What This Means for Slot Design
🔵 Win animations should last longer than loss animations, because this matches the brain’s natural processing speed for each type of outcome.
🔵 After-loss near misses are especially harmful toward the end of a session, when the player’s emotional resources are already lower. At this stage, reward mechanics can help stabilize the player’s state.
🔵 EEG makes it possible to measure the optimal duration of each outcome scenario more precisely than before.
Conclusion
The brain experiences wins more slowly and losses more quickly. A win is something the player wants to enjoy, while a loss is something they want to move past. Strong slot design takes this asymmetry into account: longer win animations allow positive emotions to develop, while shorter loss animations reduce the negative aftereffect.
Emotional swings are a natural part of slot gameplay. The goal is not to remove them, but to manage them more carefully: use more classic near misses, reduce after-loss near misses, make losses shorter, and allow wins to last longer. This becomes especially important near the end of a session, when the player is more emotionally tired and the double stress of a poorly timed near miss can have a stronger impact.
🔵 Classic near miss: the player sees an almost winning combination before the final result is revealed. The feeling of "I was so close" is experienced as one complete emotional reaction.
🔵 After-loss near miss: the losing symbol appears first, so the player already understands that the round is lost. Only after that do the winning symbols appear, creating two emotional moments in a row: first "I lost," then "I almost won."
What the Brain Revealed
🔴 A classic near miss activates the brain in a way that is similar to an actual win — it increases engagement and encourages the player to continue.
🔴 An after-loss near miss creates a stronger negative reaction than a regular loss, because the player experiences a kind of double stress.
🔴 The brain processes positive outcomes more slowly, around 500 ms, while negative outcomes are processed faster, around 300 ms. This fits an evolutionary pattern: potential threats need to be recognized quickly.
What This Means for Slot Design
🔵 Win animations should last longer than loss animations, because this matches the brain’s natural processing speed for each type of outcome.
🔵 After-loss near misses are especially harmful toward the end of a session, when the player’s emotional resources are already lower. At this stage, reward mechanics can help stabilize the player’s state.
🔵 EEG makes it possible to measure the optimal duration of each outcome scenario more precisely than before.
Conclusion
The brain experiences wins more slowly and losses more quickly. A win is something the player wants to enjoy, while a loss is something they want to move past. Strong slot design takes this asymmetry into account: longer win animations allow positive emotions to develop, while shorter loss animations reduce the negative aftereffect.
Emotional swings are a natural part of slot gameplay. The goal is not to remove them, but to manage them more carefully: use more classic near misses, reduce after-loss near misses, make losses shorter, and allow wins to last longer. This becomes especially important near the end of a session, when the player is more emotionally tired and the double stress of a poorly timed near miss can have a stronger impact.