Detection of Fs in a single statement: The role of phonetic recoding

Most college-student readers have difficulty in detecting the letter F in instances of the word OF embedded in a single statement. Throughout a series of five experiments designed to clarify the basis of these detection failures, their unique and robust nature was demonstrated. The detection failures persisted in spite of repeated attempts to detect the letters by subjects who, in separate conditions and experiments, first memorized or copied the statement, or who, for purposes of comparison, also detected the O in OF, the N in ON, or the F in IF, or who read the statement in a number of physical formats, which included lower and upper letter cases, scrambled syntax, unsegmented letter strings, and vertical (list) presentation. Although many of these manipulations significantly improved performance, none produced perfect performance or performance comparable to the detection of F in IF. Several hypotheses, including those of redundancy, unitization, and phonetic recoding, were tested as explanations of the detection failures: The hypothesis that received the strongest support was that of phonetic recoding. This hypothesis focuses upon the atypical pronunciation of F as/v/(as in the word OF), rather than as the more typical/f/. In short, this reading illusion was concluded to be, in large part, a result of the subjects’ scanning their acoustic rather than their visual images of the printed word.     

Derivatives of the Self-Directed Search: Potential clinical and evaluative uses

Four derivatives of the Self-Directed Search (SDS), accuracy in estimating one's profile, differentiation of one's six SDS personality types, consistency of the types within one's summary code, and congruence of the summary code with the preferred occupational area, were computed and correlated with other indices of career maturity for 138 community college students. Accuracy in estimating one's SDS profile correlated significantly with five other career maturity indices, but the other derivatives tended not to relate to the other career maturity criteria. The discussion examines the implications of using the Accuracy derivative to identify clients in need of assistance with career development and to unobtrusively evaluate career development interventions, and it suggests ways of increasing the reliability of the derivatives and promising directions for further research.     

Tripartite model of anxiety and depression: psychometric evidence and taxonomic implications

We review psychometric and other evidence relevant to mixed anxiety-depression. Properties of anxiety and depression measures, including the convergent and discriminant validity of self- and clinical ratings, and interrater reliability, are examined in patient and normal samples. Results suggest that anxiety and depression can be reliably and validly assessed; moreover, although these disorders share a substantial component of general affective distress, they can be differentiated on the basis of factors specific to each syndrome. We also review evidence for these specific factors, examining the influence of context and scale content on ratings, factor analytic studies, and the role of low positive affect in depression. With these data, we argue for a tripartite structure consisting of general distress, physiological hyperarousal (specific anxiety), and anhedonia (specific depression), and we propose a diagnosis of mixed anxiety-depression.     

Treatment of panic attacks using cognitive therapy without exposure or breathing retraining

Cognitive treatment of panic attacks is based on the hypothesis that panic results from the catastrophic misinterpretation of bodily sensations, and that changing such misinterpretations will block the occurrence of panic. The treatment normally involves an integrated set of cognitive and behavioural techniques. In a consecutive series of panic patients, a multiple baseline across subjects design was used to investigate whether a modified form of treatment involving only cognitive procedures could reduce panic attack frequency. The results provide preliminary evidence that cognitive procedures directed at changing misinterpretations of bodily sensations can reduce panic attack frequency, and also that cognitive procedures which do not target misinterpretations may not reduce panic.     

Visible persistence following a brief increment in stimulus luminance

In previous studies, it has been demonstrated that visible persistence--the period for which the perceived duration of a stimulus exceeds its physical duration--can be extended by briefly incrementing the luminance of the stimulus immediately prior to offset. Using a two-component pattern integration task, we show that this effect is not an artifact of change in the total luminous flux within the stimulus. Visible persistence was unaffected by overall luminance of the stimulus. It was also time-locked to the luminance increment. Visible persistence is seen to result from a process that is initiated by stimulus onset and that can be either wholly or partially reinitiated by the onset of the luminance increment. The duration of this process (which determines the duration of stimulus visibility) can be modified in a graded fashion by stimulus events that occur after its initiation. We outline a single-process inhibitory feedback model of the persistence mechanism that accounts for the present findings.     

Human Aggressive and Escape Responding: Effects of Provocation Frequency

The Psychological Record - The effect of point loss frequency on aggressive and escape responding was investigated in two experiments. Subjects could respond on levers marked “A,”...     

Personality factors in dysphoria: A psychometric refinement of beck's Sociotropy-Autonomy Scale

The Sociotropy-Autonomy Scale (SAS) was developed as a means of assessing two cognitive-personality constructs postulated as vulnerability factors in depression (Beck, 1983). While studies have confirmed the validity of the SAS Sociotropy Scale, the construct validity of the Autonomy Scale has not been well supported. The present study was conducted to improve on the measurement of autonomy by generating additional items which were added to the original questionnaire. This 93-item SAS was administered to 485 undergraduates along with the Beck Depression Inventory, Beck Anxiety Inventory, PRF Affiliation and Autonomy Scales, Positive and Negative Emotionality Measures, and Marlowe-Crowne Social Desirability Scale. Four factors labeled Sociotropy, Solitude/Interpersonal Insensitivity, Independence, and Individualistic Achievement emerged from a principal-factor analysis of the SAS item pool. Hierarchical multiple regression analyses indicated that positive emotionality and solitude/interpersonal insensitivity were specifically related to dysphoria, while negative emotionality and sociotropy had significant associations with both anxious and depressed mood states.This research was supported by University of New Brunswick Research Grant 22–51 awarded to the first author.     

Random error in additive decompositions of multiattribute utility

Decomposition is a common strategy for dealing with the complexity of multiattribute decision problems. A cognitively demanding task is broken down into tasks requiring simpler, perhaps easier, judgments which can then be aggregated. But individual judgments can be inconsistent in systematic or random fashion and when aggregated there is the possibility of propagation of this inconsistency. In this paper inconsistency in the form of random error is investigated in the context of additive decomposition of multiattribute utility. The process of aggregation of random error is studied and a comparison made with random error in holistic estimates of multiattribute utility. Conditions under which decomposition improves the consistency of the multiattribute utility estimate are presented and discussed.     

Responding to indirect speech acts

Indirect speech acts, like the request Do you know the time?, have both a literal meaning, here “I ask you whether you know the time,” and an indirect meaning “I request you to tell me the time.” In this paper I outline a model of how listeners understand such speech acts and plan responses to them. The main proposals are these. The literal meaning of indirect speech acts can be intended to be taken seriously (along with the indirect meaning) or merely pro forma. In the first case listeners are expected to respond to both meanings, as in Yes, I do—it's six, but in the second case only to the indirect meaning, as in It's six. There are at least six sources of information listeners use in judging whether the literal meaning was intended seriously or pro forma, as well as whether there was intended to be any indirect meaning. These proposals were supported in five experiments in which ordinary requests for information were made by telephone of 950 local merchants.