This technique sensitively detects age-related motor performance decline in humans. There may be a critical period in late midlife when fine motor performance decline either begins or abruptly worsens.

Analyses suggest good criterion validity for the MAST in differentiating communication impairments among clinical and control samples.

Despite the precision added by quantitative CT analysis, CT findings did not improve on demographic factors and TFC in predicting early cognitive outcome of TBI. Imaging methods that are more sensitive to white matter integrity may be needed to develop pathophysiologic predictors of TBI outcome.

Recently, Kaiser (2003) raised concerns over the increase in brain damage claims reportedly due to exposure to welding fumes. In the present article, we discuss methodological problems in conducting neuropsychological research on the effects of welding exposure, using a recent paper by Bowler et al. (2003) as an example to illustrate problems common in the neurotoxicity literature. Our analysis highlights difficulties in conducting such quasi-experimental investigations, including subject selection bias, litigation effects on symptom report and neuropsychological test performance, response bias, and scientifically inadequate casual reasoning.

This study demonstrates the preliminary reliability and validity of a brief neurocognitive screening examination for youth with brain tumours.

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Conformity to the lateral eye movement patterns of (1) a preferred direction in a face-to-face situation and (2) direction contralateral to the cerebral hemisphere tapped by a question in a nonface-to-face situation was studied in forty right-handed male college students in four groups: (1) Normal vision (N = 10), (2) Nearsighted wearing glasses full-time (N = 10), (3) Nearsighted wearing contact lenses (N = 10), and (4) Nearsighted wearing glasses part-time (N = 10). Subjects were of normal weight with no familial left-handedness or psychiatric hospitalization and no ocular or visual problems other than nearsightedness. Ratings of eye movement direction were made from videotapes. Subjects wearing glasses full-time or part-time were significantly more likely than other subjects to show the contralateral eye movement pattern in the nonface-to-face situation (p less than 0.05). Tall subjects showed more up eye movements (p less than 0.05). These findings were interpreted as an effect of long-standing visual expectancies. Myopic subjects were significantly more likely to be left-lookers than right-lookers (p less than 0.05).