PURPOSE To investigate the signal intensity of lateral and terminal saccular aneurysm models with differing neck sizes using three-dimensional time-of-flight (TOF) MR angiography with various imaging parameters. METHODS The study included four lateral and four terminal saccular aneurysm models with pulsatile flow. The height and fundus diameter were 10 mm; the neck diameters were 2.5 mm, 5 mm...

Many speech source separation approaches are based on the assumption of orthogonality of speech sources in the time-frequency domain. The target speech source is demixed from the mixture by applying the ideal binary mask to the mixture. The time-frequency orthogonality of speech sources is investigated in detail only for anechoic and artificially mixed speech mixtures. This paper evaluates how ...

Background Grade repetition is the practice of requiring a student who has been in a given grade level for a school year to continue at that level for another year. Grade repetition is a phenomenon that is found in many education systems, either in developed or developing countries (e.g. Brophy 2006). The international literature has shown that grade repetition is a major issue in the debate on...

A ubiquitous characteristic of human cortical networks is their tendency to rapidly change their response properties upon repetition. While this phenomenon has been amply documented using simple sensory-motor tasks, it is still unclear to what extent brain activations change on a short time scale when we are engaged in high level, complex tasks. Here, we examined this question using three types...

Social interaction requires active inferential processing on the part of the listener. Such inferences can affect memory. For example, after hearing the karate champion hit the cinder block, one might erroneously recollect having heard the verb broke (Brewer, 1977)--a reasonable inference, but one not logically necessitated. The mechanisms behind this type of erroneous recollection have not bee...

BACKGROUND Repeated self-harm represents the single strongest risk factor for suicide. To date no study with full national coverage has examined the pattern of hospital repeated presentations due to self-harm among young people. METHODS Data on consecutive self-harm presentations were obtained from the National Self-Harm Registry Ireland. Socio-demographic and behavioural characteristics of i...

In this paper, I study the production of consonant clusters by Greek children and examine the consequences of the acquisition data for phonological theory, with particular emphasis on the word initial position. Using a non-word repetition test, I tested the order of acquisition of word initial and word medial sT, TT and TR clusters in 59 children. The results provide evidence against any analys...

The present study used event-related potentials (ERPs) to provide precise temporal information about the modulation of masked repetition priming effects × word frequency during the course of target word recognition. Contrary to the pattern seen with behavioral response times in prior research, we predicted that high-frequency words should generate larger and earlier peaking repetition priming e...

Here, we examined how repetition under midazolam, a benzodiazepine that prevents the storage of novel associations, affects cued-recall performance of paired-associates. We contrasted word pairs that were initially studied and tested repeatedly without any successful recall prior to the midazolam injection, with other pairs that were studied for the first time after the injection of midazolam. ...