How would you feel if one of your favourite scientists published a paper that is, to put it in mild terms, not to their very best? Disappointed? Or perhaps secretly gleeful that even “the big ones” are not always producing pearl after pearl?
This is what happened to me after reading the latest paper of the Damasio group. Fox et al. (2015) decided to look for the neural correlates of gratitude. That is, stick people in fMRI, make them feel grateful, and see what lights up. All well and good, except they decided to go with a second-hand approach, meaning that instead of making people feel grateful (I don’t know how, maybe giving them something?), they made the participants watch stories in which gratitude may have been felt by other people (still not too too bad, maybe watching somebody helping the elderly). But, the researchers made an in-house documentary about the Holocaust and then had several actual Holocaust survivors tell their story (taken from the SC Shoah Foundation Institutes Visual History Archive), focusing on the part where their lives were saved or they were helped by others by giving them survival necessities. Then, the subjects were asked to immerse themselves in the story and tell how grateful they felt if they were the gift recipients.
I don’t know about you, but I don’t think that after watching a documentary about the Holocaust (done with powerfully evocative images and professional actor voice-overs, mind you!) and seeing people tell the horrors they’ve been through and then receiving from a Good Samaritan some food or shelter, gratitude would not have been my first feeling. Anger perhaps? That such abominable thing as the Holocaust was perpetrated by my fellow humans? Sorrow? Sadness? Sick to my stomach? Compassion for the survivors? Maybe I am blatantly off-Gauss here, but I don’t think Damasio et co. measured what they thought they were measuring.
Anyway, for what is worth, the task produced significant activity in the medial prefrontal cortex (which is involved in so many behaviors that is not even worth listing them), along with the usual suspects in a task as ambiguous as this, like various portions of the anterior cingulate and orbitofrontal cortices.
By Neuronicus, 27 October 2015