Allocentric and egocentric spatial representations coexist in rodent medial entorhinal cortex.

Successful navigation relies on reciprocal transformations between spatial representations in world-centered (allocentric) and self-centered (egocentric) frames of reference. The neural basis of allocentric spatial representations has been extensively investigated with grid, border, and head-direction cells in the medial entorhinal cortex (MEC) forming key components of a 'cognitive map'. Recently, egocentric spatial representations have also been identified in several brain regions, but evidence for the coexistence of neurons encoding spatial variables in each reference frame within MEC is so far lacking.

Integrating behaviour change techniques into a video intervention to promote physical activity during cancer treatment (VidEx): a qualitative, theory-informed study.

Purpose: Exercising during cancer treatment reduces fatigue, improves quality of life, and increases survival, yet 60-70% of Australians undergoing cancer treatment do not meet current physical activity (PA) recommendations. This study aimed to explore barriers and enablers to PA amongst people undergoing cancer treatment and develop a video resource targeting these barriers.

Methods: The study was guided by the capability, opportunity, motivation, behaviour (COM-B) and behaviour change wheel (BCW) frameworks.

The potential for AI to revolutionize conservation: a horizon scan.

Artificial Intelligence (AI) is an emerging tool that could be leveraged to identify the effective conservation solutions demanded by the urgent biodiversity crisis. We present the results of our horizon scan of AI applications likely to significantly benefit biological conservation. An international panel of conservation scientists and AI experts identified 21 key ideas.

Percutaneous transhepatic biliary intervention for the management of recurrent cholangitis secondary to intrahepatic biliary stones after hepaticojejunostomy.

Recurrent cholangitis, intrahepatic stones and biliary and anastomotic strictures are common complications after Roux-en-Y hepaticojejunostomy. The surgically altered anatomy makes management of these complications with endoscopic retrograde cholangiopancreatography technically difficult. We present a case of recurrent cholangitis in a 25-year-old woman with a prior hepaticojejunostomy.

Increased memory confidence and delusions in Alzheimer's disease: a preliminary study.

There is uncertainty about whether delusion formation in Alzheimer's disease (AD) can be explained by false memories. "Metamemory," the ability to self-evaluate memory and identify memory errors, is impaired in people with delusions in schizophrenia. Our objective was to investigate whether false memory and metamemory were associated with delusions in AD.