Sachiko Kiyama

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Theories of language production generally describe the segment as the basic unit in phonological encoding (e.g., Dell, 1988; Levelt, Roelofs, & Meyer, 1999). However, there is also evidence that such a unit might be language specific. Chen, Chen, and Dell (2002), for instance, found no effect of single segments when using a preparation paradigm. To shed(More)
The present study investigated the effects of visual complexity for kanji processing by selecting target kanji from different stroke ranges of visually simple (2–6 strokes), medium (8–12 strokes), and complex (14–20 strokes) kanji with high and low frequencies. A kanji lexical decision task in Experiment 1 and a kanji naming task in Experiment 2 were(More)
BACKGROUND Physical exercises are widely used in community programs, but not all older adults are willing to participate. Information and communication technology may solve this problem by allowing older people to participate in fitness programs at home. Use of remote instruction will facilitate physical exercise classes without requiring that participants(More)
This study compared the brain activation of young and older subjects during the use of the task-switching paradigm (TSP) at various task speeds to examine the relationship between task load and brain activation. Specifically, it attempted to examine whether the task load-dependent BOLD response gradient is a useful tool for functional magnetic resonance(More)
Although bimanual finger coordination is known to decline with aging, it still remains unclear how exactly the neural substrates underlying the coordination differ between young and elderly adults. The present study focused on: (1) characterization of the functional connectivity within the motor association cortex which is required for successful bimanual(More)
The present study investigated the extent to which accent sensitivity provides the foundation for lexical knowledge and listening comprehension for Japanese university students learning English as a foreign language (EFL). On an English accent correctness (i.e., YES/NO response) decision task, 63 participants showed considerably high accuracy and speed in(More)
A bad reputation can persistently affect judgments of an individual even when it turns out to be invalid and ought to be disregarded. Such indelible distrust may reflect that the negative evaluation elicited by a bad reputation transfers to a person. Consequently, the person him/herself may come to activate this negative evaluation irrespective of the(More)
English words with an inconsistent grapheme-to-phoneme conversion or with more than one pronunciation ("homographic heterophones"; e.g., "lead"-/lεd/, /lid/) are read aloud more slowly than matched controls, presumably due to competition processes. In Japanese kanji, the majority of the characters have multiple readings for the same orthographic unit: the(More)
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