The photo-lickerandum: A device for detecting the licking response,with capability for near-instantaneous programming of variable quantum reinforcement

A combined operandum-feeder is described that eliminates the necessity of passing an electrical sensing current through S while detecting and reinforcing tongue-licking responses. A glass nozzle for dispensing liquid reinforcers is situated just above a small separation in a loop of photo-conducting Sterite tubing; licks at a tiny area below the nozzle break a light beam and are detected via a photo-resistor and associated circuitry. Data are presented from a study in which rats worked at the operandum on a mult FR 40 ext schedule; performance and records are comparable to those obtained via conventional electronic sensing. Applications of the photo-lickerandum and an associated variable-quantum reinforcing system are suggested.     

The mediating effect of age on the relationship between child behavior checklist hyperactivity scores and neuropsychological test performance

The relationship between hyperactivity and neuropsychological test performance at different age levels was examined. It was found that for young children (6 to 8 years of age, n=90), there was no significant association between hyperactivity/attentional problems (as measured by the Hyperactivity scale of the Child Behavior Checklist) and performance on neuropsychological tasks thought to contain an attentional component (WISC-R Coding, Arithmetic, and Digit Span; WRAT Arithmetic; and the Benton Visual Retention Test). However, for older children (9 to 12 years of age, n=92), there were significant and large negative correlations between CBC Hyperactivity scores and Coding, WRAT Arithmetic, and Benton VRT scores. Multiple regression analyses supported the above results (for Coding and WRAT Arithmetic), indicating that hyperactivity/inattention has a particularly deleterious effect on test performance (relative to sameage peers) as age increases.Aspects of the research reported in this article were presented at the 1987 meeting of the International Neuropsychological Society in Washington, D.C. The authors gratefully acknowledge the assistance of William Ingram and Lisa Rosa in the data collection.     

CONCEPTS OF INTELLIGENCE: A COMPARISON OF CHINESE GRADUATES FROM CHINESE AND ENGLISH SCHOOLS IN HONG KONG*

The present study investigated the concepts of intelligence of two groups of Hong Kong Chinese university students. They differed in the secondary schools from which they graduated, one followed the Chinese system and the other the English system. These two groups were otherwise similar in age, academic achievement, and racial background. Subjects were asked to rate items selected from four popular intelligence tests in terms of their relevance to measuring intelligence and perceived difficulty. The relevance ratings were taken as reflections of the group's concept of intelligence. Factor analysis revealed two major factors and several minor factors underlying the relevance ratings of the two groups. The major ones were Non-verbal and Verbal reasoning skills, and the minor ones were Social, Numerical, and Retrieval skills. The Non-verbal reasoning skill was rated equally relevant by the two groups of subjects and was considered as the most relevant skill to measuring intelligence. The Verbal reasoning and Social skills were next, followed by the Numerical skill with the Retrieval skill being the least relevant. The Chinese-school group tended to rate the Verbal reasoning skill to be less relevant than did the English-school group. These findings were attributed to the mental effort involved in solving each type of task and to the differences in school instruction.     

FAMILY AND WORK PREDICTORS OF PSYCHOLOGICAL WELL-BEING AMONG HISPANIC WOMEN PROFESSIONALS

This study examines the relative contributions of job- and gender-related variables to the mental health of Hispanic women professionals. Hispanic women professionals, managers and business owners ( n = 303) were surveyed using the mailing list of a Hispanic professional women's organization. Results of multiple regression analyses indicate that income and Hispanic group were consistently related to mental health measures. Spouse support and ethnicity of spouse were associated with measures of stress in balancing roles and psychological distress symptoms. Marital status was related to personal life satisfaction (married women reported more satisfaction), and having young children was negatively associated with personal and professional satisfaction. Experience of discrimination, job stress and peer support were also significantly related to mental health measures. Although preliminary, this study underscores the importance of both job- and gender-related factors in research on the effects of employment on Hispanic women's mental health.     

采用构造玩具教学对幼儿创造力发展的影响

本研究采用自然实验法,探索采用构造玩具、进行启发儿童想象力的教学对发展幼儿创造力的作用。被试为50名均龄4岁8个月的寄宿幼儿园儿童,教学中纳入的变量为四种方法:(1)模仿-改进法;(2)改变模仿对象法;(3)模仿生活原型法;(4)改造生活原型法。控制班只采用模仿法进行教学。经过七个月的实验教学后,实验班儿童的一般智力和创造力都明显超过了控制班。测验资料证明,幼儿的一般智力占创造力之间,有0.4左右的正相关。     

Psychosocial Predictors of Change in Cigarette Smoking

Over a period of 6 months, factors related to change in cigarette smoking were investigated in a group of 250 adult outpatients, all of whom smoked at the time of enrollment in the study. Among the variables tested were demographic, social, and situational factors, beliefs about the health effects of smoking and difficulty of quitting, and intentions regarding future smoking. Information was gathered at baseline and the first and sixth months by means of telephone interviews. Relative to smoking at 6 months, intention, education, and professional advice made independent contributions to cessation. The processes of quitting were examined in more detail. Attempting to quit was related to intention, professional advice, level of smoking, and social cues to smoke. Among those who tried to stop, difficulty with urges to smoke, and education affected success versus failure. Earlier success related to less anxiety and tension, and to less difficulty in not smoking when in negative situations. The findings suggest that a complex set of social and cognitive factors affect change in smoking behavior, and that somewhat different factors are operative at different stages.     

Self-Presentation,Reasoned Action,and Adolescents' Decisions to Smoke Cigarettes1

The effectiveness of a one-shot intervention on the social, medical or medical/social consequences of smoking in deterring adolescent smoking was evaluated. Four hundred twenty adolescents completed surveys which measured attitudes, subjective norms, stereotypes, self-presentational beliefs regarding smoking, intentions to smoke, and smoking status at three points in time. The predictive ability of a Theory of Reasoned Behavior and of Impression Management Theory in determining adolescent smoking decisions was also assessed.     

Is recognition accuracy really impaired when the target is repeated in the display?

Bjork and Murray (1977) have presented a feature-specific interactive channels model that predicts perceptual interference between letters presented simultaneously in visual displays. Maximum interference is predicted when a target letter is presented with an identical letter. In their experiment, Bjork and Murray found support for their model, but their results could have occurred artifactually from response biases of their subjects. Santee and Egeth (1980) used a different paradigm that eliminated the possibility of this particular response bias and reported that their data supported the feature-specific model. However, the present paper shows that analysis of their data by Santee and Egeth was incomplete and the comparisons inappropriate. In two experiments that used the Santee and Egeth paradigm, we failed to find support for the feature-specific model when more detailed analyses of the data were undertaken. In a third experiment, one that used the Bjork and Murray paradigm, but with control of response bias, no significant or suggestive evidence was found that feature similarity between noise and target letters affected recognition of the latter.     

Dimensions of lexical coding in Chinese and English

Phonology and orthography are closely related in some languages, such as English, and they are nearly unrelated in others, such as Chinese. The effects of these differences were assessed in a study of the roles of phonemic, graphemic, and semantic information on lexical coding and memory for Chinese logographs and English words. Some of the stimuli in the two languages were selected such that the natural confounding between phonemic and graphemic information in English was matched in the set of Chinese words used. An initial scaling study indicated that this attempt to equate degree of phonemic-graphemic confounding was successful. A second experiment used a recognition memory task for English and Chinese words with separate subject groups of native speakers of the two languages. Subjects were to select one of a pair of test words that was phonemically, graphemically, or semantically similar to a word on a previously studied list. Differences in the dimensions of lexical coding in memory were demonstrated in significant Stimulus Type by Decision Type interactions in the recognition data. Chinese-speaking subjects responded most rapidly and accurately in the graphemic recognition task, whereas performance was generally equivalent in all three tasks for the English-speaking subjects. Alphabetic and logographic writing systems apparently activate different coding and memory mechanisms such that logographic characters produce significantly more visual information in memory, whereas alphabetic words result in a more integrated code involving visual, phonological, and semantic information.