Training primates to forage in virtual 3D environments.

Virtual environment software is increasingly being employed as a non-invasive method in primate cognition research. Familiar and novel stimuli can be presented in new ways, opening the door to studying aspects of cognition in captivity which previously may not have been feasible. Despite the increased complexity of visual input compared to more traditional computerised studies, several groups of captive primates have now been trained to navigate virtual three-dimensional environments.

Chimpanzees demonstrate a behavioural signature of human joint action.

The strength of human society can largely be attributed to the tendency to work together to achieve outcomes that are not possible alone. Effective social coordination benefits from mentally representing a partner's actions. Specifically, humans optimize social coordination by forming internal action models adapted to joint rather than individual task demands.

Sigmoid volvulus in a 14-year-old male mimicking acute gastroenteritis.

Sigmoid volvulus is a rare but life-threatening diagnosis in the paediatric population and has only been reported a handful of times in the literature. We describe the case of a 14-year-old boy with abdominal pain and diarrhoea who was diagnosed with a sigmoid volvulus after initially being managed for infectious gastroenteritis. The patient initially presented with a 5-day history of watery stool, 1-day history of profuse vomiting and colicky abdominal pain.

Falls From Height, Facial Injuries and Fatalities: An Institutional Review.

Study Design: Retrospective cohort review.

Objective: To investigate the relationship between falls from height and facial injuries.

Methods: This is a retrospective cohort study, conducted over a 7-year period, of the medical records of all patients who presented to hospital for a maxillofacial injury following a fall from height.