Evidence for goal-independent attentional capture from validity effects with unexpected novel color cues—A response to Burnham (2007)

Can a stimulus capture attention independent of the observer’s goals and intentions? In a recent review, (Burnham, Psychonomic Bulletin &; Review, 14, 392–422, 2007) argued that there is no convincing evidence that attention capture is ever completely independent of the goals and intentions of the observer. By contrast, surprise capture studies have shown that a color singleton can capture attention on its unannounced first occurrence, if it is new and unexpected, and hence is not part of the intentional set. However, the evidence from surprise capture studies has been criticized on methodological grounds. Here, we tested surprise capture in a new paradigm that avoids previous methodological complications. The results refute the prior criticisms and reinstate surprise capture as prime evidence for goal-independent capture.     

Simple rules for detecting depression

Depressive disorders are major public health issues worldwide. We tested the capacity of a simple lexicographic and noncompensatory fast and frugal tree (FFT) and a simple compensatory unit-weight model to detect depressed mood relative to a complex compensatory logistic regression and a naïve maximization model. The FFT and the two compensatory models were fitted to the Beck Depression Inventory (BDI) score of a representative sample of 1382 young women and cross validated on the women's BDI score approximately 18 months later. Although the FFT on average inspected only approximately one cue, it outperformed the naïve maximization model and performed comparably to the compensatory models. The heavier false alarms were weighted relative to misses, the better the FFT and the unit-weight model performed. We conclude that simple decision tools—which have received relatively little attention in mental health settings so far—might offer a competitive alternative to complex weighted assessment models in this domain.     

Personality factors and cervical premalignancy

The purpose of the study was to attempt a discrimination between stages of cervical premalignancy in terms of the four Eysenckian dimensions. It consisted of a quasi-prospective design applied to the presumed continuum of cervical premalignancy. The Ss were 88 women addressed by a physician or self-addressed for Pap smear examinations. Prior to the Pap smear they completed a demographic questionnaire and the Eysenck Personality Questionnaire providing scores of extraversion (E), neuroticism (N), psychoticism (P) and lie (L). By the Pap smear results there were four groups of women: healthy, suffering from vaginal or cervical inflammations, suffering from human papillomaviruses (HPV), and suffering from dysplasias or cervical intraepithelial neoplasms (CIN). ANOVA and discriminant analyses showed that the Eysenckian dimensions discriminated correctly with above chance significance between the groups, mainly between the healthy and inflammatory, on the one hand, and the HPV and CIN, on the other hand (on the basis of N and E scores), and less well between the healthy and inflammatory (on the basis of L scores), and least between the HPV and CIN (on the basis of P scores). As expected, in the healthy and inflammatory groups as compared with the HPV and CIN groups, N and P scores were higher whereas E and L scores were lower. The results indicate the correspondence between physiological and psychological characteristics and suggest especially the alternating relation between neuroticism and physical pathology.     

Facilitating Communication of Ideas and Evidence to Enhance Mental Health Service Quality: Coding the Treatment Services Literature Using the Child and Adolescent Needs and Strengths-Mental Health Assessment Scales

The evidence-base services literature is continually growing, providing the field with rich and important sets of information regarding what works for treating different types of youth and families. Given this burgeoning of information, the PracticeWise Evidence-Based Services (PWEBS) Literature Database has been developed to aid in summarizing and delivering aggregated evidence-based treatment information to providers in the field. Meanwhile, the Child and Adolescent Needs and Strengths-Mental Health (CANS-MH) Scale is a youth mental health assessment tool that was developed by a separate team to assist with treatment planning. In the present study, we developed and tested a system for linking these two related ontological systems so that scientific knowledge can be more widely aggregated and made available to a wider set of audiences for enhanced mental health service delivery. Results revealed the following. First, a construct mapping comparison revealed that the CANS-MH and PWEBS ontologies share a strong core of overlapping content, particularly in the areas of Youth Behavioral/Emotional Needs, Youth Risk Behaviors, and Life Domain Functioning. Second, the CANS-MH areas were able to be used to reliably code the following components of published randomized treatment studies: (a) population sample characteristics (e.g., did the characteristics of the treatment study participant population relate to each CANS-MH area?), and (b) outcome measure targets (e.g., did the treatment study outcome measure target areas relate to each CANS-MH area?). The reliability achieved from this coding process supported the linkage between the CANS-MH areas and the PWEBS Literature Database information. Lastly, high agreement was achieved between an automated translation algorithm and the final ratings from the manual coding of published treatment studies using the CANS-MH scale. The importance of such linkages for the communication of ideas, information, and evidence across differing subfields is discussed, as well as examples of achieving enhanced quality of mental health services by linking system ontologies.     

Target-present guessing as a function of target prevalence and accumulated information in visual search

Target prevalence influences visual search behavior. At low target prevalence, miss rates are high and false alarms are low, while the opposite is true at high prevalence. Several models of search aim to describe search behavior, one of which has been specifically intended to model search at varying prevalence levels. The multiple decision model (Wolfe & Van Wert, Current Biology, 20(2), 121-–124, 2010) posits that all searches that end before the observer detects a target result in a target-absent response. However, researchers have found very high false alarms in high-prevalence searches, suggesting that prevalence rates may be used as a source of information to make “educated guesses” after search termination. Here, we further examine the ability for prevalence level and knowledge gained during visual search to influence guessing rates. We manipulate target prevalence and the amount of information that an observer accumulates about a search display prior to making a response to test if these sources of evidence are used to inform target present guess rates. We find that observers use both information about target prevalence rates and information about the proportion of the array inspected prior to making a response allowing them to make an informed and statistically driven guess about the target’s presence.     

Top-down knowledge modulates onset capture in a feedforward manner

How do we select behaviourally important information from cluttered visual environments? Previous research has shown that both top-down, goal-driven factors and bottom-up, stimulus-driven factors determine which stimuli are selected. However, it is still debated when top-down processes modulate visual selection. According to a feedforward account, top-down processes modulate visual processing even before the appearance of any stimuli, whereas others claim that top-down processes modulate visual selection only at a late stage, via feedback processing. In line with such a dual stage account, some studies found that eye movements to an irrelevant onset distractor are not modulated by its similarity to the target stimulus, especially when eye movements are launched early (within 150-ms post stimulus onset). However, in these studies the target transiently changed colour due to a colour after-effect that occurred during premasking, and the time course analyses were incomplete. The present study tested the feedforward account against the dual stage account in two eye tracking experiments, with and without colour after-effects (Exp. 1), as well when the target colour varied randomly and observers were informed of the target colour with a word cue (Exp. 2). The results showed that top-down processes modulated the earliest eye movements to the onset distractors (<150-ms latencies), without incurring any costs for selection of target matching distractors. These results unambiguously support a feedforward account of top-down modulation.     

School psychologists' services in special education programs

Reviews school psychologists' services in special education programs. Fifty-eight credentialed school psychologists in 10 school districts were interviewed individually about background and training, professional duties, favored clinical techniques, and opinions and recommendations for improved services. According to self-reports, the bulk of time was devoted to activities directly related to assessment of pupils with little involvement in research, in-service training, or other clinical activities. Professional association memberships were primarily local. Assessment techniques tended to be limited to a few standardized tests. Overall findings support sample psychologists' expressed concerns as to need for changes in preservice and in-service training.