PURPOSE To compare the testing time of two Automated Auditory Brainstem Response (AABR) procedures using different repetition rates and detection modes. METHODS A hearing screening using AABR was performed in 30 newborns with mean age of 21 days. Each newborn was submitted to two hearing screening procedures using different AABR equipments (Procedure 1 and Procedure 2). Procedure 1 used a rep...

Massive repetition of a word can lead to a loss of meaning (i.e., semantic satiation). Satiation is a general property of neurons and so it would be expected that semantic satiation would be found for stimuli other than words. Three experiments examined the occurrence of satiation for the repetition of names, the visualization of faces, and the repetition of faces. Reaction times to a decision ...

Introduction One of effective ways to compensate age-related memory decline is repetition. Previous studies showed that it eliminated the age-related decline in memory performance [1][2]. Recent study showed that neural mechanism underlying the effect did not differ between young and elderly groups [3]. However, they examined it with relatively small repetition numbers (e.g. [4]), and with line...

PURPOSE To determine optimal MR gradient-echo sequences for the visualization of calcium in neurologic MR. METHOD The dependence of signal intensity and image contrast on the imaging parameters repetition time, echo time, flip angle, and spoiling were measured for hydroxyapatite samples. Calculations of signal intensity were shown to correspond to these measures. RESULTS Optimum detectabili...

conclusions the individual characteristics, educational background and admission criteria had showed relation with academic failure. vulnerable students should be identified and educational supports should be provided for these students. results the frequency of course repetition, probation, and delayed graduation was reported to be 19.25%, 3.9% and 19.85%, respectively. gaining low grade in hi...

Twenty-eight native-English speakers enrolled in beginning and intermediate university Spanish courses participated in a mixed language semantic categorization task in which critical words were presented in English (L1) and Spanish (L2) and repetitions of these words (within- and between-languages) were presented on subsequent trials (i.e., immediate repetition). Event-related potentials were r...

The repetition effect on reaction time to words and unfamiliar faces was examined at lags of 0, 4, and 15 items between first and second presentations. For words, subjects made either a lexical decision or a decision based on the stimulus's structural attributes. In the lexical decision task, a significant repetition effect was found at all three lags for words, whereas for nonwords the effect ...

in this paper an efficient three- stage algorithm is developed for software production cost and time estimation. first stage includes a hybrid model composed of cocomo and function points methods to increase estimation accuracy. second stage encompasses paired comparisons matrix of analytical hierarchy process to determine amount of any resources consumed in each step of software production by ...

We demonstrate the generation of an ultralow-repetition-rate pulse train with a repetition rate of 19.6 kHz by passive mode-locking of an optoelectronic oscillator. The pulse-to-pulse timing jitter equals 0.06 ppm of the repetition time of the pulses. No significant dependence of pulse duration, pulse waveform, and timing jitter was observed when the cavity length was changed from 150 to 10,400...