OBJECTIVE Synchronization of neural activity preceding self-generated actions may reflect the operation of the forward model, which acts to dampen sensations resulting from those actions. If this is true, pre-action synchrony should be related to subsequent sensory suppression. Deficits in this mechanism may be characteristic of schizophrenia and related to positive symptoms, such as auditory h...

Firing synchrony among neurons is thought to play functional roles in several brain regions. In theoretical analyses, firing synchrony among neurons within sub-millisecond precision is feasible to convey information. However, little is known about the occurrence and the functional significance of the sub-millisecond synchrony among closely neighboring neurons in the brain of behaving animals be...

Complex spike (CS) synchrony patterns are modulated by the release of GABA within the inferior olive (IO). The GABAergic projection to most of the IO arises from the cerebellar nuclei, which are themselves subject to strong inhibitory control by Purkinje cells in the overlying cortex. Moreover, the connections between the IO and cerebellum are precisely aligned, raising the possibility that eac...

Much research has focused on understanding breeding synchrony in animals and its relationship to such issues as mating systems and extrapair copulations in birds (Birkhead and Biggins, 1987; Emlen and Oring, 1977; Knowlton, 1979; Stutchbury and Morton, 1995). To empirically examine synchrony, one needs an appropriate measure of the degree of synchrony in a population. Kempenaers (1993) presente...

• Simultaneous observations of wild macaques allowed us to explore their spatial cohesion and behavioural synchrony. Degree activity synchrony was higher when the were within visual range. Behavioural located closer each other. Macaques highly synchronized during foraging. The degree animals a group can be considered reflection how individuals adjust behaviours manage costs/benefits accompanyin...

Continuous labelling of callus with H-thymidine results in intermittent peaks of H-DNA per chloroplast, showing synchrony of division. The increase in H-DNA could be due to several replication rounds, and the drop to successive plastid divisions without intervening DNA synthesis. The level of DNA-binding proteins in the chloroplast parallels the peaks of plastidal DNA synthesis; such pro...

In many contexts from casual everyday conversations to formal discussions, people tend to repeat their interlocutors, and themselves. This phenomenon not only yields random repetitions one might expect from a natural Zipfian distribution of linguistic forms, but also projects underlying discourse mechanisms and rhythms that researchers have suggested establishes conversational involvement and m...

View-oriented group communication systems (GCSs) are powerful tools for building distributed applications. Over the past fifteen years, group communication researchers developed a multitude of group communication semantics and implementations. Today, researchers commonly design their group communication algorithms on top of simple existing services such as a network membership service or a reli...

A new method for assessing group synchrony is introduced as being potentially useful for objectively determining degree of group cohesiveness or entitativity. The cluster-phase method of Frank and Richardson (2010) was used to analyze movement data from the rocking chair movements of six-member groups who rocked their chairs while seated in a circle facing the center. In some trials group membe...

We formulate a model of extended virtual synchrony that deenes a group communication transport service for multicast and broadcast communication in a distributed system. The model extends the virtual synchrony model of the Isis system to support continued operation in all components of a partitioned network. The signiicance of extended virtual synchrony is that, during network partitioning and ...