Picture perception: An analysis of visual compensation

Although geometric information is altered when a picture’s viewing point is changed, such changes often do not affect perception. Two experiments assessed pictorial perception relative to the distortions introduced by viewing point dislocation. Results provide a psychophysical demonstration of pictorial compensation and suggest that it is based on the discrepancy between the actual and an assumed-correct viewing position. An explanation of pictorial compensation is offered that could be applied to direct picture perception and to picture-in-a-picture perception.     

Body Language of Women and Judgments of Vulnerability to Sexual Assault

The present study experimentally examined the effects of body language on judgments of vulnerability to sexual assault by strangers. Four features of body language (stride length, weight shift, body-limb movement, and foot movement) were manipulated to create 2 typical victim profiles and 1 typical nonvictim profile. Short videotapes of 3 adult female models walking alone in each of the 3 body language profiles were filmed. Forty-one college students and 33 police officers individually viewed 3 videotapes (each showing a different model and a different body language profile) and made judgments for each about the woman's confidence level and vulnerability to sexual assault. As predicted, women in the 2 victim profiles were judged to be significantly more vulnerable to sexual assault and significantly less confident than women in the nonvictim profile. Implications and suggestions for future research are discussed.     

Tattoos and ratings of personal characteristics

High school and university students viewed a photograph of one woman either with or without a visible tattoo on her upper arm. They rated the woman on 13 personal characteristics (fashionable, athletic, attractive, caring, creative, determined, motivated, honest, generous, mysterious, religious, intelligent, artistic). Analyses showed ratings of the model with the tattoo were statistically significantly lower (more negative) on 9 of the 13 personal characteristics. Ratings were not associated with whether the participants had or did not have tattoos themselves. Implications for research are discussed, including the need to explore the conditions under which negative attitudes may be translated into negative behaviors.     

Effect of Server Introduction on Restaurant Tipping1

The effect of a server introducing herself by name on restaurant tipping was investigated. Forty-two, 2-person dining parties were randomly assigned to either a name or a no name introduction condition. The use of a buffet brunch reduced contact between server and diners and held bill size constant. Results indicated that having the server introduce herself by name resulted in a significantly higher tipping rate (23.4%) than when the server did not introduce herself by name (15.0%), p < .001. Tipping rate also was affected by method of payment, with diners who charged the meal having a higher rate (22.6%) than those paying cash (15.9%), p < .001. The findings suggest the importance of initial server-diner interactions. Possible alternative explanations and suggestions for future research are provided.     

Texture gradient registration and the development of slant perception.

The processes underlying the development of slant perception were investigated by manipulating the degree of texture element variability. Subjects at four grade levels were required to make judgments of physical slant of surfaces with three levels of variability. Absolute error of judgment decreased with age, but texture variability had no effect at any grade level. The results suggest that there is no improvement in the ability to extract gradient information. Rather, improvement in the consistency of judgment reflects a developmental change in the relationship between stimulus information and judgment.