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Sandhu, Rajwant; Dyson, Benjamin J. – Brain and Cognition, 2013
Investigations of concurrent task and modality switching effects have to date been studied under conditions of uni-modal stimulus presentation. As such, it is difficult to directly compare resultant task and modality switching effects, as the stimuli afford both tasks on each trial, but only one modality. The current study investigated task and…
Descriptors: Children, Visual Stimuli, Task Analysis, Attention Control
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Hilti, Caroline C.; Jann, Kay; Heinemann, Doerthe; Federspiel, Andrea; Dierks, Thomas; Seifritz, Erich; Cattapan-Ludewig, Katja – Brain and Cognition, 2013
The deterioration of performance over time is characteristic for sustained attention tasks. This so-called "performance decrement" is measured by the increase of reaction time (RT) over time. Some behavioural and neurobiological mechanisms of this phenomenon are not yet fully understood. Behaviourally, we examined the increase of RT over time and…
Descriptors: Brain Hemisphere Functions, Reaction Time, Attention Control, Performance
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de Fockert, Jan W.; Theeuwes, Jan – Brain and Cognition, 2012
The role of frontal cortex in selective attention to visual distractors was examined in an attentional capture task in which participants searched for a unique shape in the presence or absence of an additional colour singleton distractor. The presence of the additional singleton was associated with slower behavioural responses to the shape target,…
Descriptors: Attention Control, Short Term Memory, Role, Brain Hemisphere Functions
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Burnham, Bryan R.; Rozell, Cassandra A.; Kasper, Alex; Bianco, Nicole E.; Delliturri, Antony – Brain and Cognition, 2011
The present study examined a visual field asymmetry in the contingent capture of attention that was previously observed by Du and Abrams (2010). In our first experiment, color singleton distractors that matched the color of a to-be-detected target produced a stronger capture of attention when they appeared in the left visual hemifield than in the…
Descriptors: Attention Control, Spatial Ability, Eye Movements, Color
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Lloyd, Donna M.; Azanon, Elena; Poliakoff, Ellen – Brain and Cognition, 2010
To investigate attentional shifting in perihand space, we measured performance on a covert visual orienting task under different hand positions. Participants discriminated visual shapes presented on a screen and responded using footpedals placed under their right foot. With the right hand positioned by the right side of the screen, mean cueing…
Descriptors: Attention Control, Skill Development, Task Analysis, Performance
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Lustig, Cindy; Meck, Warren H. – Brain and Cognition, 2011
The perception of time is heavily influenced by attention and memory, both of which change over the lifespan. In the current study, children (8 yrs), young adults (18-25 yrs), and older adults (60-75 yrs) were tested on a duration bisection procedure using 3 and 6-s auditory and visual signals as anchor durations. During test, participants were…
Descriptors: Visual Stimuli, Young Adults, Older Adults, Memory
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Talsma, Durk; Kok, Albert; Slagter, Heleen A.; Cipriani, Giuseppe – Brain and Cognition, 2008
This event-related potential study investigated (i) to what extent incongruence between attention-directing cue and cued target modality affects attentional control processes that bias the system in advance to favor a particular stimulus modality and (ii) to what extent top-down attentional control mechanisms are generalized for the type of…
Descriptors: Cues, Attention Control, Attention, Visual Stimuli
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Bednarek, Dorota B.; Tarnowski, Adam; Grabowska, Anna – Brain and Cognition, 2006
Eye movements latencies toward peripherally presented stimuli were measured in 10-year-old dyslexic and control children. Dyslexic subjects, previously found to be oversensitive to stimulation of the magnocellular channel, showed reduced latencies as compared to normally reading controls. An attention shifting task was also used which showed no…
Descriptors: Eye Movements, Dyslexia, Reading Difficulties, Visual Stimuli