Cognitive bias via the Internet: a comparison of Web-based and standard emotional Stroop tasks in social phobia

There is accumulating evidence to suggest that social phobia is associated with attentional bias for words related to social threat. Information processing in individuals with social phobia (n = 87) was investigated in the present study using 2 versions of the emotional Stroop task. Results from a standard emotional Stroop task indicated delayed colour naming of socially threatening words relative to neutral words, in line with previous research, whereas results from a Web-based emotional Stroop task indicated a facilitation effect, with faster manual indication of colour choice for socially threatening words than for neutral words. Possible explanations for these contrasting findings and issues for further research are discussed.     

Threat to ethnic identity: the experience of White Afrikaans-speaking participants in postapartheid South Africa

The dismantling of apartheid and the postapartheid dispensation had far-reaching implications for all the citizens of South Africa. In an urban sample of White Afrikaans-speaking South Africans (Afrikaners) in postapartheid South Africa, the authors investigated perceptions of threat to ethnic identity, as well as correlates of those perceptions. The respondents experienced threat on 2 levels: The 1st was distinctive continuity, the concern that their ethnic group would not continue as a distinctive group in society. The 2nd was the evaluative dimension of ethnic identity (i.e., well-being), the concern that group membership would no longer contribute to positive self-esteem. The respondents experienced greater threat on the 2nd level, reflecting predominantly negative experiences as White Afrikaans-speaking persons in postapartheid South Africa. A high threat perception on the 2nd level was associated with (a) a perception of other groups' negative evaluations of their ethnic group, (b) negative attitudes toward political changes, and (c) perceptions of illegitimacy and instability of the postapartheid political system. The respondents who felt that Afrikaners would not continue as a distinctive group in society had a more positive attitude toward the sociopolitical changes, did not show strong ethnic identification, and had a negative collective self-esteem. They were also politically more liberal. Those findings are discussed in relation to theoretical expectations.     

A cross-cultural study of the structure of comorbidity among common psychopathological syndromes in the general health care setting

This study presents analyses of 7 common psychopathological syndromes in the World Health Organization (WHO) Collaborative Study of Psychological Problems in General Health Care (T. B. Ustun & N. Sartorius, 1995). Data on depression, somatization, hypochondriasis, neurasthenia, anxious worry, anxious arousal, and hazardous use of alcohol were analyzed for 14 countries (Ns for each country ranged from 196 to 800). Four models were evaluated: a 1-factor model; a 2-factor model in which all syndromes except hazardous use of alcohol represented internalizing problems; and two 3-factor models. The 2-factor model fit best. These results extend previous research on the 2-factor model to the current complaints of attendees of general health care clinics, to a new set of syndromes, and to a variety of both Western and non-Western countries.     

Euclidean Hierarchy in Modal Logic

For a Euclidean space , let L _n denote the modal logic of chequered subsets of . For every n 1, we characterize L _n using the more familiar Kripke semantics, thus implying that each L _n is a tabular logic over the well-known modal system Grz of Grzegorczyk. We show that the logics L _n form a decreasing chain converging to the logic L of chequered subsets of . As a result, we obtain that L is also a logic over Grz, and that L has the finite model property. We conclude the paper by extending our results to the modal language enriched with the universal modality.     

Individual differences in spatial frequency processing in scene perception: the influence of autism-related traits

Previous research suggested that coarse (High Spatial Frequency or HSF) and fine (Low Spatial Frequency or LSF) spatial information are flexibly used at different stages of processing during scene recognition in daily life. We tried to replicate and extend these findings by presenting non-social real-life scenes either as a normal picture, solely defined by LSF or HSF information, or using hybrid images consisting of overlaid LSF and HSF scene information. These were used as (in)congruent prime stimuli, modulating the rapid detection of a normal target picture in a 2-Alternative Forced Choice (2-AFC) categorization task (manmade versus natural). Our results indicated that coarse spatial information was more effective with shorter prime presentation times and fine spatial information required a longer prime presentation to influence participant performance. Interestingly, higher scores on the Autism-Spectrum Quotient questionnaire modified the impact of HSF prime information on target identification and influenced performance when ambiguous hybrid prime information preceded the categorization task.     

The illness reframing process in an ethnic-majority population of older people with incurable cancer: variations of cultural- and existential meaning-making adjustments

Increasing numbers of older people in Western countries are living with incurable cancer as a chronic disease, receiving palliative care from specialised healthcare contexts. The study's aim was to understand variations of cultural- and existential meaning-making adjustments in a Norwegian majority population of older people with incurable cancer. Semi-structured interviews from 21 participants, aged 70–88, were analysed according to three identified types of belief frames: atheistic/humanistic, religious, and spiritual. Kleinman's medical anthropology cultural framework was adapted and applied deductively together with a reframing metaphor concept in a four-part analytic process. Independent of the differences among the types of belief frames and heterogeneous illness reframing processes, changes in the existential cultural dimension seemed to facilitate psychosocial adjustments in relation to illness, daily living, relationships, and surroundings. The results point to the need for collecting and assessing the function of this type of patient information for better understanding the patient's framework of interpretation, and for identifying treatment-planning resources.     

Visual attention and objects: New tests of two-object cost

Baylis and Driver (1993) proposed that the positions of object parts are coded relative to the position of the object they belong to and that parts of different objects are not directly coded relative to each other. This theory predicts that it is easier to judge a difference in height of parts belonging to a single object (one-object condition) than of parts belonging to two objects (two-object condition). This two-object cost has been reported in several articles (Baylis, 1994; Baylis & Driver, 1993, 1995). However, in all these experiments, the method that was used favored the one-object condition. In the present experiments we obtained, for the first time, evidence for the existence of two-object cost without such a bias.     

Low-noise microvolt level calibrator for measurement of performance of biosignal recording systems

A calibrator, the noise level of which is below the noise level generated in the preamplifier system, was needed for testing and development of a multichannel recording system. A multichannel preamplifier head assembly was used for recording cortical, subcortical, and cerebellar slow potentials and multiunit activity in freely moving cats and restrained rabbits. An inexpensive, battery-powered, lownoise voltage signal generator for calibration of the preamplifiers is described. The circuit provides a square-wave output at a frequency of 10 or 1000 Hz, and the peak-to-peak (p-p) amplitude can be selected at 10, 100, or 1000µV. The measured output noise of the calibrator is below 2µV (p-p, 0.1–6000 Hz). The frequency and amplitude values can be easily adapted for different purposes by changing a few component values. An amplified (gain 1,000×) test output for direct oscilloscope monitoring is included in the calibrator circuit.     

On-line control of moving masks and windows on a complex background using the ATVista videographics adapter

In reading research, the moving mask and moving window paradigms have proved to be invaluable in determining the chronometric and spatial characteristics of processing written text. The success of these methods has lead to a demand for their application in research on real-world scene perception. However, we will argue that the technical implementation of eye-contingent mask (window) movement across a stable text cannot be applied to scene research. A new technique is proposed that allows graphical masks or windows of arbitrary form, size, and content to be moved quickly over a complex graphical stimulus. Thismoving overlay technique makes use of the ATVista graphics adapter, a board with the ability to mix an internally stored and an externally generated image into one composite image. A high-performance moving mask or window is created by programming the internal image to be movable and partly transparent. The technique is implemented on a standard personal computer interfaced with an eyetracker, thus bringing mask (window) movement under online eye-movement control. We discuss general principles of the technique and illustrate them with performance data from a concrete experimental setup.