How Do We Humans Ever Make Good Decisions?

Our human brains can be pretty bad when it comes to making decisions. Dr. Taylor offers a few tips on how to make better ones.


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It’s a wonder that good decisions are ever made by the species known as Homo sapiens. The reality is that the cards are stacked against us whenever we are faced with choices, especially when the decisions are of consequence. Think about all of the horrendously bad decisions that have been made in recent history and how obviously bad they look in our rear-view mirrors. The Iraq War, securitizing mortgages, Congress not voting for background checks on gun purchases, another season of The Bachelor, the list goes on. And bad decisions don’t just occur at the highest levels of government or business; rather, everyday folks can make appalling decisions as well, whether getting married to that particular person (50% of marriages end in divorce), wearing those low-cut jeans, or buying a Hummer.

The fact is that humans are behind the eight ball from the get-go when it comes to making decisions. Children are wholly ill-equipped to for decision making. They lack knowledge, experience, and perspective. Children are myopic, impulsive, and easily persuaded. It doesn’t get much better during adolescence, when teenagers are driven by raging hormones, underdeveloped self-identities, and peer and cultural pressure.

Perhaps the biggest obstacle is neurological, where the pre-frontal cortex — the part of the brain associated with executive functioning — doesn’t fully develop until the early twenties (and sometimes never!). Executive functioning directly influences decision making because it regulates, controls, and manages our thoughts, emotions, and behavior. It affects our reactions to new, ambiguous, and difficult situations. It helps us to weigh risks and rewards and short- and long-term consequences. Executive functioning assists us in planning, organizing, and executing decisions and, importantly, it can prevent us from making rash and potentially harmful decisions. We see the absence of well-developed executive functioning in our consumer culture in which people spend money they don’t have or go into debt to buy something (e.g., an iPhone, a new car, a pair of Manolo Blahnik stilettos) they can ill afford.

It doesn’t get any easier as adults to make good decisions either. A wide range of research has demonstrated that we are often at the mercy of psychological, emotional, social, and situational influences when we make decisions. Daniel Kahneman, the Nobel Prize winner in economics, has demonstrated the powerful effect that cognitive biases have on our decision making. Cognitive biases involve the tendency to draw conclusions and make decisions based on limited information or self-interest. An extensive body of research has demonstrated that these biases can lead to irrational decisions at every level of society. A common example that we see constantly in our current political climate is the confirmation bias, which involves the tendency to seek out and interpret new information that affirms our closely held beliefs.

Our decision making is also influenced by our emotional states and social world in ways both overt and subtle, making us appear quite fickle in what we decide. For example, feeling stressed or rushed alters our decisions. The decisions we make are affected by our mood. We make different decisions based on whether we are feeling happy, contemplative, or disgusted. As considerable research on peer pressure and groupthink has demonstrated, our decisions are also significantly influenced by social forces, whether friends and family, cultural messages, or societal norms.

Another thing I learned recently is that emotionally laden information (i.e., information that is threatening in some way) goes directly to the emotional center of the brain, including the amygdala and related structures that are connected to our survival instinct and fight-or-flight reactions that evolved from our early forbearers. This connection isn’t surprising given the role that our emotions play in our survival; we need to receive and act on threatening information right away or we may die.

Unfortunately, the rapid decision making associated with triggering the fight-or-flight response that served humans well during primitive times is generally ineffective at helping us make good decisions about complex issues in modern times. And emotionally relevant decisions are the ones that are usually the most important and most necessary to get right. What is even more unsettling is that there are no direct neurological pathways to the prefrontal cortex; all emotional information goes through the primitive emotional brain. So, the pre-frontal cortex is at a severe disadvantage in contributing to decision making because the information it receives is “old news,” secondhand, and tainted by emotions. For example, as anyone who has ever been in love (or thought they were) knows, that powerful and pleasant emotion can make us do truly stupid things.

We can only conclude that we humans are always going to struggle to make good decisions, and we have a long history documenting just that. Yet somehow we do find ways to make good decisions, whether buying a Prius, not investing with Lehman Brothers, or not popping the question when you’ve had several glasses of wine.

With such a strong current pulling us in the direction of bad decisions, what can we do to increase our chances of making good decisions? Here are a few strategies:

  • Don’t make knee-jerk decisions: Give yourself time to reflect on your decisions before you commit to them.
  • Don’t let your emotions make your decisions: The more distance you can create between your emotions and your decisions, the easier it will be for your pre-frontal cortex to “get in the game.”
  • Look at your decisions from many perspectives: The more information you have, the more you will engage your pre-frontal cortex and the more reasoned your decisions will be.
  • Talk to other people about your decisions: People who know you well can identify your biases, offer helpful viewpoints, and reality test your decisions.

Of course, there is no way we can completely resist all of the genetic, neurological, psychological, emotional, and social forces that impact our decision making. But these few simple steps can prevent us from making truly appalling decisions like, say, attacking North Korea or watching the latest music video from the South Korean pop star, Psy.

Featured image: Shutterstock

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