Semantic congruity and expectancy as separate processes

In two experiments, we investigated the role of expectancy in producing congruity effects in comparative judgment. In Experiment 1, instructions to choose the larger or smaller term either preceded pairs for comparative judgment or preceded individual words for lexical decision. If expectancy in interpreting the comparative judgment terms accounts for the congruity effect, the lexical decision task also should show a congruity effect. However, there were large congruity effects in comparative judgment but not in lexical decision. In this experiment, we used an infiniteset design to make sure that semantic information was needed on comparative judgment trials. In Experiment 2, comparative judgment pairs were preceded by a prime word that either was or was not a category label for the terms in the pairs. There were both congruity and priming effects, with no interaction between the two. This result implies that expectancy and the semanticcongruity effect come from separate processes.     

婴儿视觉发展

本文回顾的经验研究表明了在发展研究中的两个普通和有用的观察结果:①刚出生时有一些能力已经成熟,另外一些则还不成熟。②不同的能力以不同的速度得到发展。具体讲,刚出生时的时间分辨力相当好,随后又迅速发展,2个月时就达到成人水平。另一方面,刚出生时空间分辨力和对比感受性很差,发展又相对缓慢,直到6个月时还没有达到成人水平。空间视觉的这种早期缺陷可能造成其它视觉能力的早期缺陷,如调节、辐合和立体视觉的缺陷。     

Warder Clyde Allee and the Chicago School of Animal Behavior

Warder Clyde Allee, (1885-1955) was a pioneer American scientist in the fields of ecology and animal behavior. His contributions to the development of a general animal sociology are discussed, with particular attention to his concept of animal cooperation and his research in the area of dominance hierarchies.     

Age and gender comparisons of driving while sleepy: Behaviours and risk perceptions

To assist road safety professionals in developing effective strategies to combat the risk associated with driving while fatigued, a survey was administered to 1000 Australian drivers. Participants reported their past behaviours in regards to driving while sleepy and their perceptions of risk associated with driving fatigued as compared to speeding and driving under the influence of alcohol. Although participants appeared to be aware of the substantial risk associated with driving while sleepy, many drivers reported that they frequently drive when sleepy. Age and gender comparisons, revealed that risk taking behaviour in regards to driving while sleepy is occurring across all age groups and in both male and female drivers. Overall young to middle age drivers and male drivers reported the highest frequency of driving while sleepy and reported the lowest perceived personal risk in regards to driving while sleepy.     

The structure of interpretations in family therapy: a video-enhanced exploration

A method for assessing the structure of interpretations of family therapy events is described. Family sessions were videotaped; each participant then independently reviewed the tape, stopping it to indicate any significant events and describing the importance of each identified sequence. Qualitative approaches to analyzing the stop points are described, using data from six families and their therapist. This combination of direct session experience and reflective interpretation provides a much-needed perspective on the meaning of sessions and psychotherapeutic interaction. Research and clinical implications for scientifically examining the structure of shared interpretations in family therapy are discussed.     

Disability in the family: a life span perspective

This article provides an overview of disability in families. The goal of the article is to raise awareness of the status of people with disabilities and their families to develop culturally relevant psychological support. Families have widely varying perspectives on disability; those perspectives influence responses to disability from the preconception and prenatal developmental stages through old age. An international literature review is provided with consideration of cultural meanings of disability, preparation for dealing with disability, coping strategies, support, developmental dynamics, competing needs of family members, and ethics. Voices of people with disabilities and their families are included.     

Estimator reliability and distance scaling in stereoscopic slant perception

When a horizontal or vertical magnifier is placed before one eye, a frontoparallel surface appears slanted. It appears slanted away from the eye with horizontal magnification (geometric effect) and toward the eye with vertical magnification (induced effect). According to current theory, the apparent slant in the geometric and induced effects should increase with viewing distance. The geometric effect does scale with distance, but there are conflicting reports as to whether the induced effect does. Ogle (1938 Archives of Ophthalmology 20 604-623) reported that settings in slant-nulling tasks increase systematically with viewing distance, but Gillam et al (1988 Perception & Psychophysics 44 473-483) and Rogers et al (1995 Perception 24 Supplement, 33) reported that settings in slant-estimation tasks do not. We re-examined this apparent contradiction. First, we conducted two experiments whose results are consistent with the literature and thus replicate the apparent contradiction. Next, we analyzed the signals available for stereoscopic slant perception and developed a general model of perceived slant. The model is based on the assumption that the visual system knows the reliability of various slant-estimation methods for the viewing situation under consideration. The model's behavior explains the contradiction in the literature. The model also predicts that, by manipulating eye position, apparent slant can be made to increase with distance for vertical, but not for horizontal, magnification. This prediction was confirmed experimentally.