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Corben, L. A.; Akhlaghi, H.; Georgiou-Karistianis, N.; Bradshaw, J. L.; Egan, G. F.; Storey, E.; Churchyard, A. J.; Delatycki, M. B. – Brain and Cognition, 2011
Friedreich ataxia (FRDA) is the most common of the genetically inherited ataxias. We recently demonstrated that people with FRDA have impairment in motor planning--most likely because of pathology affecting the cerebral cortex and/or cerebello-cortical projections. We used the Simon interference task to examine how effective 13 individuals with…
Descriptors: Inhibition, Neurological Impairments, Psychomotor Skills, Reaction Time
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Breitberg, Alaina; Drevets, Wayne C.; Wood, Suzanne E.; Mah, Linda; Schulkin, Jay; Sahakian, Barbara J.; Erickson, Kristine – Brain and Cognition, 2013
Glucocorticoid administration has been shown to exert complex effects on cognitive and emotional processing. In the current study we investigated the effects of glucocorticoid administration on attention towards emotional words, using an Affective Go/No-go task on which healthy humans have shown an attentional bias towards positive as compared to…
Descriptors: Stimuli, Cognitive Processes, Reaction Time, Short Term Memory
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Gabbard, Carl; Cacola, Priscila; Bobbio, Tatiana – Brain and Cognition, 2011
Theory suggests that imagined and executed movement planning relies on internal models for action. Using a chronometry paradigm to compare the movement duration of imagined and executed movements, we tested children aged 7-11 years and adults on their ability to perform sequential finger movements. Underscoring this tactic was our desire to gain a…
Descriptors: Psychomotor Skills, Motor Reactions, Comparative Analysis, Children
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Zhou, Shan-shan; Fan, Jin; Lee, Tatia M. C.; Wang, Chang-qing; Wang, Kai – Brain and Cognition, 2011
Previous studies suggest that aging is associated with impairment of attention. However, it is not known whether this represents a global attentional deficit or relates to a specific attentional network. We used the attention network test to examine three groups of younger, middle-aged, and older participants with respect to the efficiency of…
Descriptors: Reaction Time, Older Adults, Age Differences, Attention
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Shin, Jacqueline C. – Brain and Cognition, 2011
The ability to learn temporal patterns in sequenced actions was investigated in elementary-school age children. Temporal learning depends upon a process of integrating timing patterns with action sequences. Children ages 6-13 and young adults performed a serial response time task in which a response and a timing sequence were presented repeatedly…
Descriptors: Reaction Time, Elementary School Students, Young Adults, Task Analysis
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Poston, Brach; Van Gemmert, Arend W. A.; Barduson, Beth; Stelmach, George E. – Brain and Cognition, 2009
Elderly adults often exhibit performance deficits during goal-directed movements of the dominant arm compared with young adults. Recent studies involving hemispheric lateralization have provided evidence that the dominant and non-dominant hemisphere-arm systems are specialized for controlling different movement parameters and that hemispheric…
Descriptors: Brain Hemisphere Functions, Young Adults, Older Adults, Age Differences
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Van Gerven, Pascal W.M.; Meijer, Willemien A.; Jolles, Jelle – Brain and Cognition, 2007
In this experimental study, effects of age and education on switching focal attention in working memory were investigated among 44 young (20-30 years) and 40 middle-aged individuals (50-60 years). To this end, a numeric n-back task comprising two lag conditions (1- and 2-back) was administered within groups. The results revealed a comparable…
Descriptors: Attention, Short Term Memory, Reaction Time, Age Differences
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Baudouin, Alexia; Vanneste, Sandrine; Pouthas, Viviane; Isingrini, Michel – Brain and Cognition, 2006
The aim of the present research was to study age-related changes in duration reproduction by differentiating the working memory processes underlying this time estimation task. We compared performances of young and elderly adults in a duration reproduction task performed in simple and concurrent task conditions. Participants were also administered…
Descriptors: Short Term Memory, Time Management, Older Adults, Young Adults
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Mohamed Zied, Kefi; Phillipe, Allain; Karine, Pinon; Valerie, Havet-Thomassin; Ghislaine, Aubin; Arnaud, Roy; Didier, Le Gall – Brain and Cognition, 2004
The present investigation examined the functioning of inhibitory mechanisms in younger and older bilinguals using a bilingual version of the Stroop test. The study predicted different patterns of age related decline in inhibitory mechanisms (inter- and intralingual interference) in bilinguals depending on their level of proficiency. Consistent…
Descriptors: Bilingualism, Age Differences, Adults, Inhibition
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Bugg, Julie M.; Zook, Nancy A.; DeLosh, Edward L.; Davalos, Deana B.; Davis, Hasker P. – Brain and Cognition, 2006
The current study examined the contributions of general slowing and frontal decline to age differences in fluid intelligence. Participants aged 20-89 years completed Block Design, Matrix Reasoning, simple reaction time, choice reaction time, Wisconsin Card Sorting, and Tower of London tasks. Age-related declines in fluid intelligence, speed of…
Descriptors: Reaction Time, Age Differences, Intelligence, Task Analysis