Where does our “Feel­ing of Know­ing” come from? Have you ever felt cer­tain that you knew an answer even though you couldn’t think of it right off? Where does that “feel­ing of know­ing” come from? The answer to this ques­tion is the focus of neu­rol­o­gist Robert Burton’s new book On Being Cer­tain: Believ­ing You Are Right Even When You’re Not.

I recently reviewed Dr. Burton’s book on the Brain Sci­ence Pod­cast and last week I had the oppor­tu­nity to inter­view him for the show. He explained that one of the ori­gins for his book was his expe­ri­ence with patients with con­di­tions like Cotard’s syn­drome (where the patient thinks he is dead or does not exist). What Dr. Bur­ton calls the “feel­ing of know­ing” is so strong that peo­ple con­sis­tently trust it even when their beliefs con­tra­dict the evi­dence. At first it might seem sur­pris­ing that this feel­ing is gen­er­ated at an uncon­scious level in our brain, yet the same sort of pro­cess­ing cre­ates the world we see and hear. It is well-known that what we see is not what enters our eyes, but rather a highly processed sig­nal that is actu­ally partly deter­mined by our expec­ta­tions. We can’t really con­trol what we see, and sim­i­larly we do not have any con­scious access to, or con­trol over, the “feel­ing of know­ing.” Keep that in mind then next time you can’t con­vince a friend to change their opinion.

One impli­ca­tion of this idea is that it argues for try­ing to be more tol­er­ant of those whose beliefs are dif­fer­ent from our own. How­ever, it also has an impor­tant impli­ca­tion for brain health. Recently it is has become quite pop­u­lar to tout pro­grams that claim to improve one’s intu­ition or abil­ity to access gut feel­ings. While it might be true that one can learn to become more aware of the emo­tional sig­nals com­ing from one’s body, Dr. Bur­ton argues that “gut feel­ings” or intu­ition should not be assumed to be true with­out testing.

This is dif­fi­cult to accept because the emo­tional weight of the “feel­ing of know­ing” tends to out­weigh our attempts at log­i­cal rea­son­ing. How­ever by becom­ing aware that our intu­itions and hunches are gen­er­ated by the brain, we can also learn to sub­ject them to the same scrutiny that we apply to opti­cal illu­sions. We can’t con­trol the “feel­ing of know­ing,” but we can become aware of how it effects our behav­iors and decisions.

Links:

- Brain Sci­ence Pod­cast #42: Dr. Camp­bell dis­cusses On Being Cer­tain: Believ­ing You Are Right Even When You’re Not by Robert Burton.

- Brain Sci­ence Pod­cast #43: Inter­view with Dr. Robert A Bur­ton. (Note: a com­plete tran­script of this inter­view is now available.)

- Robert Burton’s new book: On Being Cer­tain: Believ­ing You Are Right Even When You’re Not.

Gin­ger Camp­bell, MD grad­u­ated from the Uni­ver­sity of Alabama School of Med­i­cine. She also has a Master’s Degree in Bio­med­ical Engi­neer­ing and spent sev­eral years teach­ing at the Uni­ver­sity of Alabama in Birm­ing­ham. Dr. Camp­bell has been prac­tic­ing emer­gency med­i­cine since 1992. She started the Brain Sci­ence Pod­cast in 2006. Her goal is to help gen­eral audi­ences under­stand how recent dis­cov­er­ies in neu­ro­science are unrav­el­ing the mys­ter­ies of how our brains make us who we are.

If inter­ested in the topic on intu­ition vs. logic, you may also enjoy this related essay:

- To Think or to Blink?, by Madeleine Van Hecke.

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