Uncovering Dynamical Equations of Stochastic Decision Models Using Data-Driven SINDy Algorithm.

Decision formation in perceptual decision making involves sensory evidence accumulation instantiated by the temporal integration of an internal decision variable toward some decision criterion or threshold, as described by sequential sampling theoretical models. The decision variable can be represented in the form of experimentally observable neural activities. Hence, elucidating the appropriate theoretical model becomes crucial to understanding the mechanisms underlying perceptual decision formation.

Of Rodents and Primates: Time-Variant Gain in Drift-Diffusion Decision Models.

Unlabelled: Sequential sampling models of decision-making involve evidence accumulation over time and have been successful in capturing choice behaviour. A popular model is the drift-diffusion model (DDM). To capture the finer aspects of choice reaction times (RTs), time-variant gain features representing urgency signals have been implemented in DDM that can exhibit slower error RTs than correct RTs.

The use of recombinant factor VIIa in warfarin patients with traumatic brain injury: a retrospective case-control study.

Patients on warfarin who have traumatic intracranial haemorrhage have a high mortality. The procoagulant recombinant factor VIIa (rFVIIa) is widely used off-label to treat intracranial haemorrhaging in patients taking warfarin to try to improve these adverse outcomes, but its effectiveness is unknown. In this study, medical records from 2002 to 2010 were reviewed for 27 warfarin patients who received rFVIIa for their traumatic intracranial haemorrhage and were compared with a matched control group of 27 warfarin patients who did not receive rFVIIa.

Statewide assessment of injury and death rates among riders of off-road vehicles treated at trauma centers.

Background: Injuries and deaths among riders of off-road motorized all-terrain vehicles are increasing in the US. We hypothesized that serious injuries in Oregon have increased among riders of both four-wheel and two-wheel vehicles.

Study Design: We analyzed the Oregon Trauma Registry.