Hisashi Yazawa | Search PubMed

PubMed2004

Effects of inferred social status and a beginning driver's sticker upon aggression of drivers in Japan.

The present study examined how inferred social status and a beginning driver's sticker influenced aggressive drivers' behavior on the road in Japan. A 2 x 2 x 2 factorial design was constructed to examine the effects of social status of an experimental car (high or low), with a beginning driver's sticker or no beginning driver's sticker, and a male or female driver. Analysis showed that horn-honking latency in the sticker condition was longer than that in the no-sticker condition in the low status car. In the high status car, the horn was sounded sooner in the condition with a beginning driver's sticker. A beginning driver's sticker promoted aggressive behavior oward a high status person, whereas it inhibited aggressive behavior toward low status individuals. Thus, response to a beginning driver's sticker appears to vary according to inferred social status.

Adult↗

PubMed2003

[Learned helplessness, generalized self-efficacy, and immune function].

Generalized self-efficacy is considered one of important personality traits that determine psychological and physiological stress responses. The present study examined the interaction effects of generalized self-efficacy and controllability of acute stress on salivary secretory immunoglobulin A (s-IgA), task performance, and psychological stress responses in a typical learned helplessness paradigm. Twenty low and 19 high self-efficacy undergraduate women performed two response selection tasks one after another. In the first task, they were exposed to controllable or uncontrollable aversive noise. The second task was identical for all, but perceived controllability was higher for the high self-efficacy group than the low. Performance under uncontrollable condition was lower than controllable condition. The interaction of self-efficacy and controllability was observed only on the s-IgA variable; increase of secretion of s-IgA secretion under stressor uncontrollability was more prominent in the low self-efficacy group than the high. These results suggested that generalized self-efficacy was a moderator of the stressor controllability effect on secretory immunity.

Adult↗