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Biomedical subjects

W H Moore

Publications and source records attributed to W H Moore.

At least 55 records · Page 3Linked to original sources
PubMed1986

Hemispheric alpha asymmetries and behavioral responses of aphasic and normal subjects for the recall and recognition of active, passive, and negative sentences.

The hemispheric alpha asymmetries of a group of normal males, a group of normal females, and a group of aphasic patients (fluent and dysfluent) were examined with electroencephalographic (EEG) techniques under memory conditions of recall and recognition of active, passive, and negative sentences. Aphasic patients, regardless of classification, showed right hemispheric alpha suppression across memory conditions and sentence types. Both normal groups were found to have greater left hemispheric alpha suppression for the recall memory condition and greater right hemispheric alpha suppression for the recognition memory condition (males significantly more than females). The aphasic subjects performed better on recognition tasks compared to recalled tasks and active sentences compared to transformed sentences. Results are discussed as providing evidence of the aphasic subjects' greater dependency on information processing resources of the right hemisphere in the recovery of language function. The findings are also discussed as providing support for a multiple-resources model of information processing.

Adult↗
PubMed1985

The effects of visual feedback on hemispheric alpha asymmetries and reported processing strategies: a single-subject experimental design.

A double reversal single-subject experimental design was used to study the effects of visual feedback on the hemispheric alpha asymmetries of a male subject during a linguistic task. Results indicated that the subject demonstrated flexibility in hemispheric alpha and corresponding processing strategies employed when an alpha biofeedback procedure was used. These results provide further support for the notion that right and left hemispheric activation is associated with different, yet compatible, cognitive strategies and that both can be manipulated under conditions of feedback.

Adult↗
PubMed1985

Will the 'ghost of health care future' be a horror story? The choice is ours.

Americans have to choose one of two possible scenarios regarding the future of health care in this country. This decision, the author says, will determine whether the "ghost of health care future" is competitive or constrictive. This article is adapted from Mr. Moore's presentation on the "DRG Fallout: Implications for the Pathologist and the Health Care System," during the CAP/ASCP 1984 Fall Meeting.

Forecasting↗
PubMed1985

Integration of database capabilities into a patient reporting system.

A database design is described which automatically archives computer-generated patient imaging and radioassay reports. Selected phrases are condensed so that data storage will be efficient without sacrificing a prose style of report. An indexed file structure has been used to facilitate rapid record retrieval even when several hundred thousand records are stored. Personnel time is considerably reduced for recalling patient records, preparing periodic summaries of studies completed, and performing administrative functions such as billing and keeping track of checked out images. Complex queries, such as "list all the patients between the ages of 50 and 60 on digitalis referred for a stress cardiac study, with left ventricular ejection fraction less than 40% and apical dyskinesis," become feasible. A system for data backup is described to protect against catastrophic data loss.

Computers↗
PubMed1984

The role of right hemispheric information processing strategies in language recovery in aphasia: an electroencephalographic investigation of hemispheric alpha asymmetries in normal and aphasic subjects.

The hemispheric alpha asymmetries of a group of normal males, a group of normal females and a group of aphasic patients (fluent and dysfluent) were examined with electroencephalographic (EEG) techniques during the presentation of sentencial information (which the subjects were to repeat following presentation of each sentence) and connected verbal discourse (which the subjects were required to answer questions about following presentation). Results demonstrated both fluent and nonfluent aphasic patients to show less alpha in the right hemisphere contrasted with both normal groups who demonstrated less alpha in the left hemisphere. Results are discussed in relation to the contribution of right hemispheric information processing strategies in language recovery in aphasic patients.

Adult↗
PubMed1983

Sex task and processing strategy effects in hemispheric alpha asymmetries for the recall and recognition of arousal words: results from perceptual and motor tasks in males and females.

Hemispheric alpha asymmetries of males and females were observed during perceptual and motor tasks requiring recall and recognition of words controlled for level of arousal (positive, negative, and neutral). Verbal reports of individual processing strategy were collected and analyzed relative to hemispheric alpha ratios. Results showed greater alpha suppression in the left relative to right hemisphere for recall as compared to recognition tasks and for word presentation when contrasted with motor conditions. High positive correlations were found between narrative report of processing strategy and hemispheric alpha data. A separate analysis revealed that seven subjects identified as highly analytic processors showed greater alpha suppression in the left relative to right hemisphere across tasks, conditions, and stimuli than did seven highly visual processors who, in contrast, demonstrated greater right hemispheric alpha suppression. Task difficulty and individual differences in processing style that modify cerebral laterality effects are discussed.

Adolescent↗
PubMed1983

Effects of type of center fixation stimulus on visual-field preferences: a preliminary study.

60 normal subjects (30 males and 30 females) viewed bilateral presentations of pairs of CVC or CVVC English words high in imagery. Three types of central fixation stimuli were studied: numbers, letters, and geometric forms. A significant main effect for kind of fixation was found, but not for sex, visual fields, or their interactions. Results are discussed relative to the processing of high imagery words by both the left and right hemispheres.

Adult↗
PubMed1982

Radionuclide venography in iliac and inferior vena caval obstruction.

Thirteen cases are presented to demonstrate normal and various abnormal radionuclide venographic patterns following obstruction of the inferior vena cava or common iliac veins. In these patients, obstruction was due to surgery, thrombosis, or neoplasm. Contrast venography was also performed in seven patients to confirm the radionuclide findings. Radionuclide venograms did not visualize the same collateral patterns that contrast venograms did. Most notably, the anterior parietal vessels were seen in many cases with radionuclide venography, and the paraspinal veins were seen more commonly with contrast venography.

Collateral Circulation↗
PubMed1981

Sentence imagery and recall: an electroencephalographic evaluation of hemispheric processing in males and females.

Hemispheric alpha asymmetries were obtained for males and females during the presentation of sentences comprised of high imagery and low imagery words. The subject's task was to later recall lexical items for each imagery group. The subjects were also administered a modified version of Paivio's (1971) Individual Differences Questionnaire (IDQ). The results indicated that females appeared to process both sentence types left hemispherically while males used the right hemisphere for these stimuli. No difference in processing was found for the two imagery conditions. Females scored higher than males on both subtests of the IDQ and tended to recall more items from both imagery conditions. The results are discussed in terms of stimulus and task variables which may affect hemispheric processing.

Adult↗
PubMed1981

Electromyographic feedback treatment for tinnitus aurium.

The relationship between behavioral severity ratings of tinnitus and electromyographic (EMG) activity recorded at the frontalis muscle was investigated in a single adult female. A within-subject, double reversal experimental design was utilized. Although auditory biofeedback procedures were effective in decreasing and increasing EMG activity at frontalis muscle sites, changes in EMG levels were not systematically related to behavioral severity ratings of either tinnitus or annoyance. Psychoacoustic judgements of tinnitus parameters were similarly unrelated to EMG levels. Psychological strategies were developed by the subject that apparently were associated with increases as well as decreases in EMG activity.

Behavior↗
PubMed1981

Radiotracer imaging in a case of diffuse skeletal hemangiomatosis.

The hospital course of a patient with diffuse skeletal hemangiomatosis is presented with reference to the role of radionuclide imaging procedures in the diagnosis and evaluation of this disorder. In addition to static scans of liver, bone, and bone marrow, flow studies using Tc-99m-sulfur colloid and methylene diphosphonate (MDP) were performed.

Adult↗
PubMed1981

Recognition and recall: an electroencephalographic investigation of hemispheric alpha asymmetries for males and females on perceptual and retrieval tasks.

Hemisphere alpha asymmetries of males and females were obtained during the presentation of connected verbal material under instructions of recall or recognition and during the retrieval tasks requiring recall or recognition which were compared to a "vigilance" condition. Significantly more left hemispheric participation was found for the retrieval/recognition tasks than for the perceptual, listening tasks. The notion that brain mechanisms involved in information storage or retrieval for recall and recognition tasks are different was not supported. Asymmetries between the males and females did not differ.

Adolescent↗
PubMed1980

Alpha hemispheric asymmetry and stuttering: some support for a segmentation dysfunction hypothesis.

The alpha hemispheric asymmetries of normal-speaking males, normal-speaking females and male stutterers were examined with electroencephalographic (EEG) techniques during exposure to connected speech and connected nonlinguistic stimuli. The subject selection was controlled for familial right handedness. The stutterers showed significantly less alpha in their right hemispheres for both verbal and nonverbal tasks. The findings are discussed in terms of possible variables affecting hemispheric processing in normal males, females, and stutterers. The hypothesis that stuttering may be a linguistic segmentation dysfunction is presented.

Acoustic Stimulation↗