A cooperative instinct

A Gut Instinct

From the Department of Medicine, University of Wisconsin–Madison School of Medicine (C.L.A., C.J.C., N.S.), and the William S. Middleton Memorial Veterans Hospital (C.J.C., N.S.) — both in Madison; and the Department of Internal Medicine, University of Michigan Medical School, and Department of Veterans Affairs Ann Arbor Healthcare System and Health Services Research and Development Center of E...

Basic instinct in a feline.

Reported cases in Europe of large felines attacking humans are rare. Recently, in France, a man was attacked in an animal park by a tigress he had raised. He received fatal cervical wounds. This case of death by bites and lacerations, together with others in the recent international literature, underline the hereditary ferocity of such felines and the way in which they prefer to inflict lesions...

Gut instinct

Barriers to the use of selective digestive decontamination include concerns about emergence of resistant organisms, over-estimation of current performance in preventing ventilator-associated pneumonia (VAP), alternative methods of preventing VAP, and misunderstanding of mechanisms of action. A definitive cluster-randomised trial should be undertaken that incorporates practitioner concerns and e...

Bayesian Instinct ∗

Do experts form rational beliefs when making split-second, sophisticated judgments? A long literature suggests not: individuals often form prior beliefs from biased sampling and update those beliefs by improperly weighting new information. This paper studies belief formation by professional umpires in Major League Baseball. We show that the decisions of umpires reflect an accurate, probabilisti...

Breastfeeding: preserving a human instinct.