منابع مشابه
Contrast thresholds for component motion with full and poor attention.
We compare luminance-contrast-masking thresholds for fully and poorly attended stimuli, controlling attention with a demanding concurrent task. We use dynamic displays composed of discrete spatiotemporal wavelets, comparing three conditions ("single," "parallel," and "random"). In contrast to static displays, we do not find that attention modulates the "dipper" regime for masks of low luminance...
متن کاملبررسی ساختارهای مختلف full adder
در این پایان نامه پارامترهای مهم در مدارات دیجیتال توضیح داده شده و چند سلول جمع کننده متداول مورد بررسی قرار گرفته است. ایده های مختلفی که در پیاده سازی مدارات جمع کننده وجود داشته، شبیه سازی شده است. در پیاده سازی مدار سلول جمع کننده، در بعضی از مقالات طبقات ورودی و در بعضی دیگر طبقات خروجی متفاوت است. در مقالات متفاوت از منطق های cmos مکمل، نسبتی، ترانزیستور عبوری مکمل، گیت های انتقال، تابع ...
15 صفحه اولAuditory vigilance in aphasic individuals: detecting nonlinguistic stimuli with full or divided attention.
Previous research (LaPointe & Erickson, 1991) has shown that aphasic individuals have difficulty, relative to control subjects, in monitoring for spoken words while performing a secondary task. This finding may indicate that aphasics have fundamental deficits in attention or that their linguistic deficits are simply exacerbated by dividing attention. Twenty subjects, 10 nonfluent aphasic and 10...
متن کاملNeural correlates of auditory recognition under full and divided attention in younger and older adults.
We examined how aging affects the pattern of brain activity mediating retrieval under dual-task conditions. We used functional magnetic resonance imaging (fMRI) to measure brain activity in younger and older adults while they were engaged in an auditory verbal recognition test under either full or divided attention (FA or DA). During recognition under FA, older adults had more activity in bilat...
متن کاملPoor attention rather than hyperactivity/impulsivity predicts academic achievement in very preterm and full-term adolescents.
BACKGROUND Very preterm (VP) children are at particular risk for attention deficit/hyperactivity disorder (ADHD) of the inattentive subtype. It is unknown whether the neurodevelopmental pathways to academic underachievement are the same as in the general population. This study investigated whether middle childhood attention or hyperactivity/impulsivity problems are better predictors of VP adole...
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ژورنال
عنوان ژورنال: Nature
سال: 1974
ISSN: 0028-0836,1476-4687
DOI: 10.1038/248715a0