Central integration effects with stabilized afterimages

Prolonged patterned afterimages were used to study integration effects in stabilized images. Seven Ss were presented with various configurations of a pattern through a prism stereoscope, both monocularly and binocularly. Some of the fragmentations and regenerations reported in the binocular condition could only have resulted as a function of organization of the inputs to the two eyes, suggesting that postretinal processes are operative in stabilized image phenomena.     

Predictors of chewing tobacco and cigarette use in a multiethnic public school population

Smoking and tobacco-chewing habits of sixth and seventh graders were investigated. Four hundred thirty-three white, black, Mexican-American, and Oriental students in San Diego public schools self-reported their tobacco use as well as perceptions of use among their peers and friends, parental socio-economic status, and other variables. One-third of the respondents had used some form of tobacco at least once, with cigarette smoking more common than chewing. Norm perceptions and best friend's habits predicted both smoking and chewing experimentation and prevalence. White males were more frequent "chewers," while blacks and Mexican-Americans were more frequent smokers. Significant associations between the two types of tobacco use were also found.     

Psychosocial stress and coping in smokers who relapse or quit

Relapse remains a major problem in successful smoking cessation. This study evaluated selected responses and coping skills in male and female quitters and relapsers in four situational contexts: general social competence, smoking-specific "high-risk-for-relapse" situations, social anxiety, and relaxation. Results showed that quitters coped better than relapsers with intrapersonal (e.g., negative mood) smoking-specific situations. Quitters had lower heart rates than relapsers during relaxation and intrapersonal situations and had lower anxiety scores at the end of the procedures. Women showed more stress and less confidence in their ability to cope than did men. Groups did not differ in responses to the general social competence and social anxiety procedures. Results are discussed in the context of the importance of considering individual differences in responses and in coping skills for treatment and relapse prevention for smokers.     

CORRECTION DES VERBALISATIONS IRRATIONNELLES CHEZ DES JOUEURS DE POKER-VIDEO*

Earlier studies have shown that irrational thinking dominates rational thinking during gambling. The present study evaluated the effects of cognitive restructuring on gambling behaviors among video poker players. Within a single case experimental design across subjects, the results showed that irrational verbalizations decreased during treatment while rational verbalizations increased. Three out of four players reduced their frequency of gambling following treatment. The theoretical and clinical implications of these results are discussed.     

Syntactic complexity does not necessarily make sentences harder to understand

Researchers studying language comprehension have assumed that, all else being equal, more complex sentence constructions will take longer to process. However, results from experiments, such as the one presented in this paper, which use reading rates as the dependent measure suggest that it is the interaction of specific types of deep structure representations with their surface structure forms that accounts for fluctuations in readers' on-line processing of various sentence types. In particular, those sentences in which the deep structure direct object immediately precedes the verb in the surface structure sequence are easier for comprehenders to process. These data support a dual, parallel processing model of sentence comprehension in which lexical and morphological/relational information are processed independently.Johns Hopkins University.     

What is diagnosis? Some critical reflections

It is argued that the common definition of diagnosis as ‘the determination of the nature of a disease’ is misleading. Many diagnoses are not the names of disease entities. This finding reflects the integral relation of the diagnostic task to the rest of clinical reasoning. Diagnosis has no separate goal of its own, in particular it does not have the goal of determining the nature of a disease. Instead, diagnosis contributes to the general goals of clinical medicine. Any attempt to model diagnostic reasoning abstracted from the rest of clinical reasoning will yield an inadequate representation of diagnosis. Such a distortion of medical reasoning will blind us to whatever implications an adequate epistemology of medicine may have for an understanding of the relation between theoretical and practical knowledge in other contexts.     

Assessment of social skills using a Thurstone Equal-Appearing Interval scale

Although Likert ratings of social skill are widely used in behavioral assessment, such ratings may have limited replicability potential and social validity. The present study compared the reliability of Likert and Thurstone Equal-Appearing Interval scales. The Thurstone-derived scale was slightly more reliable than its Likert counterpart. Moreover, the empirical and clinical potential of Thurstone scaling substantially exceeds that of Likert and other rating methods.