We tested whether biventricular resynchronization explains contractile function changes with univentricular and biventricular pacing in heart failure patients with varying magnitudes of baseline biventricular asynchrony. Thirty patients (New York Hospital Association class > or = III, QRS duration > or =120 ms) were tested. Contractile function was measured by left ventricular maximum first der...

This study investigated people's sensitivity to audiovisual asynchrony in briefly-presented speech and musical videos. A series of speech (letters and syllables) and guitar and piano music (single and double notes) video clips were presented randomly at a range of stimulus onset asynchronies (SOAs) using the method of constant stimuli. Participants made unspeeded temporal order judgments (TOJs)...

Sustained exposure to an asynchronous multisensory signal causes perceived simultaneity to shift in the direction of the leading component of the adapting stimulus. This is known as temporal recalibration, and recent evidence suggests that it can occur very rapidly, even after a single asynchronous audiovisual (AV) stimulus. However, this form of rapid recalibration appears to be unique to AV s...

Title: REPRODUCTIVE POTENTIAL WITHIN THE LANDSCAPE: A SPATIALLY-EXPLICIT, AGENT-BASED MODEL OF ASYNCHRONY Christopher Roland Guenther, Master of Science, 2005 Directed By: Professor William F. Fagan, Department of Biology Reproductive asynchrony, which can be a beneficial life-history strategy in healthy insect populations, may contribute to an Allee effect at small population densities. A spat...

The brain is able to realign asynchronous signals that approximately coincide in both space and time. Given that many experience-based links between visual and auditory stimuli are established in the absence of spatiotemporal proximity, we investigated whether or not temporal realignment arises in these conditions. Participants received a 3-min exposure to visual and auditory stimuli that were ...

The alternating direction method of multipliers (ADMM) has been popular for solving many signal processing problems, convex or nonconvex. In this paper, we study an asynchronous implementation of the ADMM for solving a nonconvex nonsmooth optimization problem, whose objective is the sum of a number of component functions. The proposed algorithm allows the problem to be solved in a distributed, ...

BACKGROUND According to previous studies on the deformation properties of the left atrium, the systolic strain and strain rates represent the atrial reservoir function and the early and late diastolic strain rates show the conduit and booster functions, respectively. OBJECTIVES We sought to evaluate the intra and interatrial asynchrony using strain/strain rate imaging in systolic heart failur...