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Biomedical subjects

W C Lowe

Publications and source records attributed to W C Lowe.

At least 19 recordsLinked to original sources
PubMed1981

Effects of ammonium chloride on urinary pH and cigarette smoking behavior.

We determined the effects of acidification of urinary pH on cigarette smoking behavior to assess the postulated relationships between stress, urinary pH, and cigarette smoking. Urine was acidified by short-term administration of 12.5, 25, and 50 mg/kg ammonium chloride and long-term administration of 50 mg/kg ammonium chloride. Measurements of cigarette smoking behavior included the number of cigarettes smoked as well as automated measures of puff frequency and duration. Short- and long-term administration of ammonium chloride induced decreases in urinary pH but failed to induce any substantial changes in number of cigarettes smoked, puff frequency, or puff duration.

Ammonium Chloride↗
PubMed1978

Self-consciousness and locus of control.

179 college students were classified as internal or external in locus of control on the basis of I-E scores. Self-consciousness scores showed external subjects were more socially anxious than internal subjects.

Adolescent↗
PubMed1977

Prior time uncertainty reduction of foreperiod duration under two different levels of event uncertainty in schizophrenia.

Schizophrenic and alcoholic Ss judged stimulus durations of .50 and .55 seconds. Stimulus was 1, 3 or 5 dark dots and was preceded by variable foreperiod duration of 1, 3 or 5 seconds. Judgment of stimulus duration was found to be a monotonically increasing function of foreperiod duration. When pitch of sound was correlated with foreperiod duration so that it functioned as prior information, such monotonic function was eliminated for schizophrenics only when the numerosity of dots was constant from trial to trial. The effect of prior information as to foreperiod duration was negligible for both schizophrenics and alcoholics when the numerosity of dots was variable from trial to trial. Uniqueness of schizophrenia was shown to be associated with prior time uncertainty reduction of foreperiod duration in the context of minimal event uncertainty of stimulus.

Acoustic Stimulation↗
PubMed1977

Prior event uncertainty reduction under two different levels of time uncertainty of foreperiod duration in schizophrenia.

Schizophrenic and alcoholic Ss judged stimulus durations of .50 and .55 seconds. Stimulus was 1, 3 or 5 dark dots and was preceded by variable foreperiod duration of 1, 3 or 5 seconds. Judgment of stimulus duration was found to be a monotonically increasing function of both foreperiod duration and numerosity of dots. When pitch of sound, which functioned as a warning signal, was correlated with numerosity of dots, the monotonic relation between numerosity of dots and estimation of stimulus duration was eliminated for alcoholics, but not for schizophrenics, only when foreperiod duration was constant from trial to trial. The effect of prior information as to numerosity of dots was negligible for both schizophrenics and alcoholics when foreperiod duration was variable from trial to trial.

Adult↗
PubMed1977

Prior time uncertainty reduction of foreperiod duration under two different levels of event uncertainty in process and reactive schizophrenia.

Process and reactive schizophrenic Ss judged stimulus durations of .50 and .55 seconds. Stimulus was 1, 3 or 5 dark dots and was preceded by variable foreperiod duration of 1, 3 or 5 seconds. Judgment of stimulus duration was found to be a monotonically increasing function of foreperiod duration. When pitch of the auditory warning signal was correlated with foreperiod duration so that it functioned as prior time information, such monotonic function was eliminated for process schizophrenics only when the numerosity of dots was constant from trial to trial. The effect of prior time information that concerned foreperiod duration was negligible for both process and reactive schizophrenics when the numerosity of dots was variable from trial to trial. Uniqueness of process schizophrenia was shown to be associated with prior time uncertainty reduction of foreperiod duration in the context of minimal event uncertainty of stimulus.

Adult↗
PubMed1977

Death expectancies in alcoholic and nonalcoholic persons.

The Do-It-Yourself Death Certificate (DIYDC) was administered to a group of alcoholic inpatients (N = 39) and to a group of university employees (N = 39). The groups were matched on age, sex, and race. Both alcoholics and nonalcoholics projected unrealistic expectations about their deaths when compared with actuarial cause of death data, but this was somewhat more true of those in the alcoholic group, who expected to live longer than would be expected and who only infrequently attributed their deaths to drinking. Strong preferences were expressed for a quick death, and some differences were observed between the groups with regard to seasonal expectations of time of death and attitudes toward life-prolonging techniques. The DIYDC appears to be a useful adjunct to existing methods of death research, and it may have practical applications with some clinical groups, provided that certain ethical considerations are observed.

Adult↗