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Biomedical subjects

J A Mather

Publications and source records attributed to J A Mather.

21 records · Page 2Linked to original sources

Immunization activities of private-practice physicians: a record audit.

A record audit of the office immunization records of 13 private-practice Idaho physicians included 813 2-year-old children. Thirty-six percent had completed all the Public Health Service recommended immunizations for a 2-year-old child. Forty-four percent of the "active" patients (those seen by the physician within the previous 12 months) were complete as opposed to 8% of the "inactive" patients. In general, the children who received immunizations exclusively from their private physician were better immunized (38% complete) than those who received immunizations from both their private physicians and the health department clinics (22% complete). Despite the low percentage of overall completeness, the vaccine-specific immunization levels were at least as high as the levels computed from the National Immunization Survey. While the limitations of the study prevent application of the results to physicians in general, the data suggest that the inability to complete an immunization schedule, once begun, is a major weakness in the immunization activities of private-practice physicians.

Child, Preschool↗

Motor control of schizophrenics--I. Oculomotor control of schizophrenics: a deficit in sensory processing, not strictly in motor control.

An in-depth analysis of eye movements of schizophrenics has demonstrated defects in several oculomotor subsystems, likely due to processing of sensory information and not to problems in the motor system itself. Schizophrenic subjects made more pursuit tracking errors, due to higher RMS errors, larger phase lag, and more saccades in pursuit. When making saccadic movements they had normal reaction times, saccade velocity and intersaccadic pause, but made more double-jump saccades and overshot the target. Only some had inability to hold steady fixation, but all had an attentional problem in restraining an inappropriate eye movement. The multiple defects suggest a processing problem that is not strictly motor and does not fit any standard definition of attention.

Adult↗