"The art of losing isn't hard to master," she writes in the opening line; the trick is to begin with trivial losses, like door keys, and practice until you can handle those which are tragic.
It took me painfully long even to recognize that the event had left a kind of ocean of disquiet in me that manifested itself in panic attacks and a lifelong struggle with agoraphobia, and in my difficulties negotiating some aspects of public life, as well as in my reactions to trivial losses.
The overall strengths of our trial have been noted elsewhere (Courneya et al, 2013) and include being the largest exercise trial in breast cancer patients receiving chemotherapy, the first to compare exercise dose and type effects, multicentre recruitment, good adherence rates, intention-to-treat analysis, and trivial loss-to-follow-up.
Compared to the activity observed during trivial-trivial loss decisions, the orbitofrontal cortex and ventral striatum were more active and correlated positively with self-reported positive emotion of choice during vital-trivial loss decisions.
To identify the brain regions specially associated with vital-trivial loss decisions, we performed a contrast of VT versus TT conditions.
Our results revealed that the amygdala was more active and correlated positively with self-reported negative emotion associated with choice during vital-vital loss decisions, when compared to trivial-trivial loss decisions.
Lack of retention is then considered a non-trivial loss of benefit.
Before attempting to reduce the dimension of the data, we first consider whether a PCA is appropriate, that is, a data set with very high information content will not lend itself to significant dimension reduction, at least not without some non-trivial loss of information.
Minimizing the posterior risk then involves solving the famous Bellman equation (see e.g. [61]), which does not have closed-form solutions for non-trivial loss-functions.
