Attention

621.

Evidence for internal representation of a static nonlinearity in a visual tracking task.

A group of 24 participants was given over 3 h practice at a visual pursuit tracking task with a pronounced static nonlinearity between movement of the joystick and the resulting deflection of the response cursor. The aim was twofold: (1) to determine ...
Asim Ghous, Peter D Neilson (Hum Mov Sci, 200212)
evidence-internal-representation-static-nonlinearity-visual-tracking.asp

622.

The effects of different instructions for preparatory muscle tension on simple reaction time.

The effects of preparatory weak muscular contraction (pre-tension) have been investigated in a number of previous studies using tasks with either simple or choice responses to measure the reaction time (RT). These studies suggested that optimal ...
Ken Kimura, Kuniyasu Imanaka, Ichiro Kita (Hum Mov Sci, 200212)
effects-different-instructions-preparatory-muscle-tension-simple.asp

623.

Ageing effects on the attention demands of walking.

Attention demands of walking were determined in six male and six female young adults (mean 26.3 yr) and 12 gender-matched healthy, active older adults (mean 71.1 yr) using a dual task procedure with a reaction time (RT) secondary task. In three ...
W A Sparrow, Elizabeth J Bradshaw, Ecosse Lamoureux, Oren Tirosh (Hum Mov Sci, 200212)
ageing-effects-attention-demands-walking.asp

624.

Inhibition of expected movements in Tourettes Syndrome.

Tourettes Syndrome (TS) is a basal ganglia (BG) disorder characterized by involuntary motor and vocal tics, impairment of voluntary motor function, and attentional dysfunctions. This experiment aimed to investigate motor reprogramming and inhibitory ...
Anita Mei Yoke Goh, John L Bradshaw, Judy A Bradshaw, Nellie Georgiou-Karistianis (J Clin Exp Neuropsychol, 200212)
inhibition-expected-movements-tourette-s-syndrome.asp

625.

Reduced task-set inertia in Parkinsons disease.

This study investigated the relationship between cognitive inhibition and set-switching costs in 13 patients with Parkinsons disease (PD) and 16 control subjects using a set-switching task with fully predictable switches. Incongruent colour-words and ...
Petra M J Pollux, Colin Robertson (J Clin Exp Neuropsychol, 200212)
reduced-task-set-inertia-parkinson-s-disease.asp

626.

Effects of filler type in naming: change in time criterion or attentional control of pathways?

We report two naming experiments examining the effects of filler type on the size of regularity and frequency effects. Low-frequency exception words were used as one filler type in both experiments. Their effects were contrasted with the effects of ...
Sachiko Kinoshita, Stephen J Lupker (Mem Cognit, 200212)
effects-filler-type-naming-change-time-criterion-or-attentional.asp

627.

Fundamental dimensions of subjective state in performance settings: task engagement, distress, and worry.

Subjective state constructs are defined within the traditional domains of affect, motivation, and cognition. Currently, there is no overarching state model that interrelates constructs within the different domains. This article reports 3 studies that ...
Gerald Matthews, Sian E Campbell, Shona Falconer, Lucy A Joyner, Jane Huggins, Kirby Gilliland, Rebecca Grier, Joel S Warm (Emotion, 200212)
fundamental-dimensions-subjective-state-performance-settings-task.asp

628.

Overt and covert object-based attention.

To examine the role of perceptual object representations in the control of eye movements and attention, a pair of experiments adapted the object-cuing paradigm of Egly, Driver, and Rafal (1994) to require eye movements. Displays were pairs of adjacent ...
Jason S McCarley, Arthur F Kramer, Matthew S Peterson (Psychon Bull Rev, 200212)
overt-covert-object-based-attention.asp

629.

Timing and force control in boys with attention deficit hyperactivity disorder: subtype differences and the effect of comorbid developmental coordination disorder.

This study examined the motor and performance outcomes of boys with subtypes of attention deficit hyperactivity disorder (ADHD) (DSM-IV, [American Psychiatric Association, Diagnostic and statistical manual of mental disorders, 4th ed., Washington, DC, ...
Thelma M Pitcher, Jan P Piek, Nicholas C Barrett (Hum Mov Sci, 200212)
timing-force-control-boys-attention-deficit-hyperactivity-disorder.asp

630.

Constraints have different concurrent effects and aftereffects on variability.

Three experiments showed that constraints imposed early in learning have different effects on variability when they are in effect and after they are removed. Task constraints, which determine how something can be done, limited the number of possible ...
Patricia D Stokes, Helen M Harrison (J Exp Psychol Gen, 200212)
constraints-different-concurrent-effects-aftereffects-variability.asp