Jeffrey M Healey

Learn More
Most theories about the inheritance of hand preference assume that handedness is a unidimensional trait which forms a continuous distribution. This paper demonstrates that sampling a wide range of manual activities reveals dimensions of hand preference that are independent. 180 right handed and 110 left handed adults indicated their hand preference for 55(More)
The Peabody Picture Vocabulary Test-Revised (PPVT-R), Boston Naming Test (BNT), Paired Associate Learning of the Wechsler Memory Scale (PAL), and verbal fluency tests were administered to 241 normal children aged 6-12 years. Normative data were compiled for the BNT, PAL, and verbal fluency tests. A Principal Components Factor Analysis with Varimax Rotation(More)
To assess the relationship between the DSM-III criteria for attention deficit disorder with hyperactivity (ADDH) and the DSM-III-R criteria for attention-deficit hyperactivity disorder (ADHD), children from an inner city parochial school were evaluated using a 30-item teacher questionnaire consisting of the DMS-III and DSM-III-R criteria for these(More)
BACKGROUND Controversy exists regarding the optimal management strategy for children having empyema or parapneumonic effusion as a complication of pneumonia. We hypothesized that video-assisted thoracoscopic surgery (VATS)-assisted drainage of pleural fluid and debridement of the pleural space is superior to a chest tube alone in the management of these(More)
Healey, Liederman, and Geschwind (1986) suggested that handedness is not a unidimensional trait. They devised a questionnaire with 55 handedness items and 6 familial hand preference items and administered it to 290 adults. Their analysis identified four independent factors underlying hand preference. In the current study, the reliability of all but one of(More)
Previous research employing factor-analytic procedures to study the underlying dimensions of DSM-III attention deficit disorder with hyperactivity (ADDH) symptoms have consistently supported a two-factor model. Revision of the structure of the ADHD diagnosis in DSM-III-R, as well as inclusion of new items, has raised the question of comparability of the two(More)
Teacher-rated ADHD and normal control children were administered a continuous performance test (CPT), and were then further subdivided based upon the presence or absence of objectively assessed attentional deficits. In addition, children were assessed using several measures of cognitive and behavioral functioning. Attentional deficits were significantly(More)
Eighty-five non-referred school children were divided into four groups based upon the IOWA Conners Teacher's Questionnaire: pure hyperactive (HYP), pure aggressive (AGG), mixed hyperactive/aggressive (HYP/AGG), and normal controls. The groups were compared on neurobehavioral tests believed to assess inattention and impulsivity. A continuous performance test(More)
Two tachistoscopic studies employing normal males and females were done to investigate the inconsistency of obtained sex differences on visual laterality tasks to the extent that this inconsistency is task specific. Type of linguistic task (discrimination vs production) and control of attention were manipulated. Results showed that on language(More)