Effects of closed-head injury on attentional processes: An information-processing stage analysis

1990 ◽  
Vol 12 (2) ◽  
pp. 247-264 ◽  
Author(s):  
David H. K. Shum ◽  
Ken McFarland ◽  
John D. Bain ◽  
Michael S. Humphreys
Keyword(s):  
Information Processing ◽  
Head Injury ◽  
Closed Head Injury ◽  
Processing Stage ◽  
Attentional Processes ◽  
Closed Head ◽  
Stage Analysis

Event–related potential assessment of information processing after closed head injury

2003 ◽  
Vol 40 (1) ◽  
pp. 45-59 ◽  
Author(s):  
Connie C. Duncan ◽  
Mary H. Kosmidis ◽  
Allan F. Mirsky
Keyword(s):  
Information Processing ◽  
Head Injury ◽  
Closed Head Injury ◽  
Event Related Potential ◽  
Closed Head

Divided Attention After Closed Head Injury

2003 ◽  
Vol 14 (3) ◽  
pp. 203-211 ◽  
Author(s):  
Frederiec K. Withaar ◽  
Wiebo H. Brouwer
Keyword(s):  
Information Processing ◽  
Reaction Time ◽  
Head Injury ◽  
Divided Attention ◽  
Closed Head Injury ◽  
Reaction Time Task ◽  
Complex Tasks ◽  
Mental Flexibility ◽  
Speed Of Information Processing ◽  
Closed Head

Abstract: One of the most persisting sequelae of closed head injury (CHI) is a general slowing of information processing. With neuropsychological testing, the effect is already apparent in simple reaction time tests. The slowing is more pronounced in complex tasks requiring divided attention. This study aims at explaining impairments in divided attention in terms of reduced speed of information processing, and impaired mental flexibility. Three types of mental flexibility are proposed: Stimulus driven (four choice reaction time and auditory reaction time task), memory driven (Trailmaking B test), and strategy driven flexibility tasks (continuous tracking task and arrow identification task). Divided attention paradigms were studied in 26 subacute CHI patients and 25 orthopedic control subjects. Results demonstrated that a reduced speed of information processing was largely responsible for divided attention impairments. Additional impairments in complex divided attention tasks only emerged in the most complex tasks (that is in the strategy driven flexibility task).

Effects of severe closed-head injury on three stages of information processing

1992 ◽  
Vol 14 (5) ◽  
pp. 717-737 ◽  
Author(s):  
Maureen E. Schmitter-edgecombe ◽  
William Marks ◽  
John F. Fahy ◽  
Charles J. Long
Keyword(s):  
Information Processing ◽  
Head Injury ◽  
Closed Head Injury ◽  
Closed Head ◽  
Three Stages
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