Neuronal Population Encoding of Identity in Primate Prefrontal Cortex.

The ventrolateral prefrontal cortex (VLPFC) shows robust activation during the perception of faces and voices. However, little is known about what categorical features of social stimuli drive neural activity in this region. Since perception of identity and expression are critical social functions, we examined whether neural responses to naturalistic stimuli were driven by these two categorical features in the prefrontal cortex.

Symposium highlights and synopses of the scientific program: the Sixth Annual Mid-Atlantic Healthcare Informatics Symposium.

As the bar to actively participate in one's own health is consistently lowered through technology, patients are helping to evolve traditional workflows to make data more accessible at the point of care. This growing trend of patient engagement and personalized medicine was the focus of the 2013 Mid-Atlantic Healthcare Informatics Symposium in Philadelphia, PA on April 26, 2013. The conference, presented annually by the Center for Bio-medical Informatics (CBMi) at The Children's Hospital of Philadelphia, featured plenary sessions, panel discussions, and paper presentations on a range of topics, including patient engagement and personalized medicine; using data and analytics to optimize patient care; nursing informatics; and the future of biomedical informatics.

Coding of vocalizations by single neurons in ventrolateral prefrontal cortex.

Neuronal activity in single prefrontal neurons has been correlated with behavioral responses, rules, task variables and stimulus features. In the non-human primate, neurons recorded in ventrolateral prefrontal cortex (VLPFC) have been found to respond to species-specific vocalizations. Previous studies have found multisensory neurons which respond to simultaneously presented faces and vocalizations in this region.

A new fracture model for "terrible triad" injuries of the elbow: influence of forearm rotation on injury patterns.

Objective: The purpose of this study was to evaluate the influence of forearm rotation on failure patterns of the elbow under axial loads.

Methods: Fourteen upper extremities were resected mid-humerus and mounted on a custom apparatus, which allowed rotation of the ulna, radius, and humerus about a fixed wrist while loading in axial compression. Seven specimens were loaded to failure with the forearm in pronation and 7 in supination.

Development of a new model for rotator cuff pathology: the rabbit subscapularis muscle.

Background And Purpose: The New Zealand white rabbit subscapularis tendon passes under a bony arch to insert on the lesser tubercle of the humerus in a manner analogous to the supraspinatus tendon in humans. We assessed whether this unique anatomy may provide a new animal model of the shoulder to improve our understanding of rotator cuff pathology.

Methods: The dimensions of the rotator cuff insertions (subscapularis, supraspinatus, and infraspinatus) were measured on 10 fresh frozen cadaveric New Zealand white rabbit shoulders.