Nonnaïveté among Amazon Mechanical Turk workers: Consequences and solutions for behavioral researchers

Crowdsourcing services—particularly Amazon Mechanical Turk—have made it easy for behavioral scientists to recruit research participants. However, researchers have overlooked crucial differences between crowdsourcing and traditional recruitment methods that provide unique opportunities and challenges. We show that crowdsourced workers are likely to participate across multiple related experiments and that researchers are overzealous in the exclusion of research participants. We describe how both of these problems can be avoided using advanced interface features that also allow prescreening and longitudinal data collection. Using these techniques can minimize the effects of previously ignored drawbacks and expand the scope of crowdsourcing as a tool for psychological research.     

Language Mapping with Verbs and Sentences in Awake Surgery: A Review

Intraoperative language mapping in awake surgery is typically conducted by asking the patient to produce automatic speech and to name objects. These tasks might not map language with sufficient accuracy, as some linguistic processes can only be triggered by tasks that use verbs and sentences. Verb and sentence processing tasks are currently used during surgery, albeit sparsely. Medline, PubMed, and Web of Science records were searched to retrieve studies focused on language mapping with verbs/sentences in awake surgery. We review the tasks reported in the published literature, spell out the language processes assessed by each task, list the cortical and subcortical regions whose stimulation inhibited language processing, and consider the types of errors elicited by stimulation in each region. We argue that using verb tasks allows a more thorough evaluation of language functions. We also argue that verb tasks are preferable to object naming tasks in the case of frontal lesions, as lesion and neuroimaging data demonstrate that these regions play a critical role in verb and sentence processing. We discuss the clinical value of these tasks and the current limitations of the procedure, and provide some guidelines for their development. Future research should aim toward a differentiated approach to language mapping – one that includes the administration of standardized and customizable tests and the use of longitudinal neurocognitive follow-up studies. Further work will allow researchers and clinicians to understand brain and language correlates and to improve the current surgical practice.     

REBT in Italy: Dissemination and Integration with Constructivism and Metacognition

This paper describes and critically discusses how rational emotive behavior therapy (REBT) spread among Italian cognitive psychotherapists. In the 1980s Cesare De Silvestri, with the help of Carola Schimmelpfennig, Franco Baldini, and Mario Di Pietro, brought REBT to Italy and eagerly disseminated it. In addition, De Silvestri cooperated with the two leading figures in the Italian clinical cognitive movement, Vittorio Guidano and Gianni Liotti. Guidano and Liotti applied the ABC framework to their constructivist version of cognitive therapy. Given that the large majority of Italian cognitive therapists adopted Guidano and Liotti’s approach, they all started applying the ABC framework and are still applying it today. However, Italian therapists adapted the ABC framework to their constructivist training. For example, Guidano and Liotti interpreted the ABC framework as aimed at promoting cognitive and emotional awareness in clients, while they considered the ‘disputing’ phase to be not compatible with the constructivist principles they held. They also encouraged the application of John Bowlby’s ideas to REBT and the use of life experience report techniques in the ABC. Sandra Sassaroli and Roberto Lorenzini applied George Kelly’s “laddering” technique to the ABC framework, a technique more focused on dilemmatic structures than on REBTian dysfunctional thought. Caselli investigated REBT’s influence on Adrian Wells’ metacognitive version of the ABC. Finally, Ruggiero and Ammendola have made a strong call for “back to Ellis”. This implies that any innovation should involve a more stringent and faithful application of REBT principles.     

Validating the Diathesis–Stress Model Based Case Conceptualization Procedure in Cognitive Behavioral Therapies: The LIBET (Life Themes and Semi-Adaptive Plans—Implications of Biased Beliefs,Elicitation and Treatment) Procedure

Journal of Rational-Emotive & Cognitive-Behavior Therapy - Cognitive behavioral therapy (CBT) approaches use case formulation procedures based on the diathesis–stress conceptualization...     

The role of Broca's area in speech perception: evidence from aphasia revisited

Motor theories of speech perception have been re-vitalized as a consequence of the discovery of mirror neurons. Some authors have even promoted a strong version of the motor theory, arguing that the motor speech system is critical for perception. Part of the evidence that is cited in favor of this claim is the observation from the early 1980s that individuals with Broca’s aphasia, and therefore inferred damage to Broca’s area, can have deficits in speech sound discrimination. Here we re-examine this issue in 24 patients with radiologically confirmed lesions to Broca’s area and various degrees of associated non-fluent speech production. Patients performed two same-different discrimination tasks involving pairs of CV syllables, one in which both CVs were presented auditorily, and the other in which one syllable was auditorily presented and the other visually presented as an orthographic form; word comprehension was also assessed using word-to-picture matching tasks in both auditory and visual forms. Discrimination performance on the all-auditory task was four standard deviations above chance, as measured using d′, and was unrelated to the degree of non-fluency in the patients’ speech production. Performance on the auditory–visual task, however, was worse than, and not correlated with, the all-auditory task. The auditory–visual task was related to the degree of speech non-fluency. Word comprehension was at ceiling for the auditory version (97% accuracy) and near ceiling for the orthographic version (90% accuracy). We conclude that the motor speech system is not necessary for speech perception as measured both by discrimination and comprehension paradigms, but may play a role in orthographic decoding or in auditory–visual matching of phonological forms.     

Alcohol affects goal commitment by explicitly and implicitly induced myopia

Alcohol commits people to personally important goals even if expectations of reaching the goals are low. To illuminate this effect, we used alcohol myopia theory, stating that alcohol intoxicated people disproportionally attend to the most salient aspects of a situation and ignore peripheral aspects. When low expectations of reaching an important goal were activated students who consumed alcohol were less committed than students who consumed a placebo. We observed less commitment regardless of whether low expectations were explicitly activated in a questionnaire (Study 1) or implicitly activated through subliminal priming (Study 2). The results imply that, intoxicated people commit to goals according to what aspects of a goal are activated either explicitly or implicitly.     

Mental contrasting turns positive feedback on creative potential into successful performance

In two studies employing a creativity test (i.e., solving insight problems), we hypothesized and observed that mental contrasting of a desired future with present reality (Oettingen, Pak, & Schnetter, 2001) transforms positive feedback into strong performance. Participants received positive or moderate bogus feedback on their creative potential and then engaged either in mental contrasting, indulging in the desired future, dwelling on present reality, or irrelevant contrasting with respect to taking a creativity test. Mental contrasting participants who received positive feedback performed better than those who received moderate feedback. They also performed better than indulging, dwelling, and irrelevant contrasting participants, regardless of the feedback received. By manipulating expectations of success through bogus feedback, the present research adjusts for confounding variables and validates previous findings showing that mental contrasting produces expectancy-dependent goal commitments and performance. Implications for designing interventions to enhance people's creativity are discussed.     

Contribution of NIRS to the study of prefrontal cortex for verbal fluency in aging

Healthy aging is characterized by a number of changes on brain structure and function. Several neuroimaging studies have shown an age-related reduction in hemispheric asymmetry on various cognitive tasks, a phenomenon captured by Cabeza (2002) in the Hemispheric Asymmetry Reduction in Older Adults (HAROLD) model. Although this phenomenon is supported by a range of neuroimaging data on memory and inhibitory processes, there is little evidence concerning changes in hemispheric asymmetry for language processing, and particularly word retrieval, which is assessed with verbal fluency task (VFT). This study aimed to investigate the age-related changes in cerebral oxygenation in the prefrontal cortex for both letter and category VFT, varying the complexity of the criteria (i.e., degree of productivity) and using near-infrared spectroscopy (NIRS). Sixteen younger and 16 older adults participated in this study. For both VF conditions, participants were instructed to pronounce as many nouns as possible as a function of high-productivity (e.g., “animals” or “L”) or low-productivity (e.g., “flowers” or “V”) criteria. Behavioral data (i.e., accuracy responses) showed comparable performance in younger and older adults for both VF conditions. However, NIRS data showed more reduced activation (i.e., significantly reduced increase in [O₂Hb] and reduced decrease in [HHb]) in older than younger adults for both VFT. In addition, a bilateral effect was found for both groups, suggesting that VFT requires both executive and language functions. The results are discussed in the context of the current theories of aging.