Consider this deceptively simple experiment. Fredrickson used lab techniques to “prime” the emotions of a large group of volunteers. Some were primed for amusement, some for serenity, still others for anger or fear or nothing at all. Then she asked them simply to make a list of things they would like to do at that moment. Those who were amused or serene listed significantly more possibilities than the others, suggesting that their minds were more open to ideas, more exploratory. She ran a similar experiment with abstract shapes, and found that the positive thinkers were more apt to see hidden patterns, to make connections. Those who were angry or fearful were too narrowly focused on details to see the big picture.

This is what Fredrickson calls “broadening,” and she had shown this cognitive benefit time and again in a variety of studies. (Ode to Joy and Serenity and Curiosity and . . .)

As I’ve taken time each week to focus on gratitude, aside from feeling generally more positive, I have felt more open, more ready to take on new projects, looking forward to next semester, etc. Interesting.

It gets better.

But what is the value of such openness beyond the moment? This is where is gets really interesting. Fredrickson has shown that these moments of serenity or amusement have an accumulative effect over time. They break down the barriers between self and others, and build trust. In short, positivity creates open-mindedness, which sparks even more good feelings, creating an upward spiral of emotions. This is the “building” for the future: Over time, those with the most positive moments become more mindful and attentive, more accepting and purposeful, and more socially connected.

Time will tell.