Solving categorical syllogisms with singular premises

We elaborate on the approach to syllogistic reasoning based on “case identification” (Stenning & Oberlander, 1995 Stenning, K. and Oberlander, J. 1995. A cognitive theory of graphical and linguistic reasoning: Logic and implementation. Cognitive Science, 19: 97–140. [Crossref], [Web of Science ®] , [Google Scholar]; Stenning & Yule, 1997 Stenning, K. and Yule, P. 1997. Image and language in human reasoning: A syllogistic illustration. Cognitive Psychology, 34: 109–159. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). It is shown that this can be viewed as the formalisation of a method of proof that dates back to Aristotle, namely proof by exposition (ecthesis), and that there are traces of this method in the strategies described by a number of psychologists, from Störring (1908 Störring, G. 1908. Experimentelle Untersuchungen über einfache Schlussprozesse [Experimental research on simple inferential processes]. Archiv für die Gesamte Psychologie, 11: 1–127.  [Google Scholar]) to the present day. We hypothesised that by rendering individual cases explicit in the premises, the chance that reasoners would engage in a proof by exposition would be enhanced, and thus performance improved. To do so, we used syllogisms with singular premises (e.g., this X is Y). This resulted in a uniform increase in performance as compared to performance on the associated standard syllogisms. These results cannot be explained by the main theories of syllogistic reasoning in their current state.     

Motivation and Self‐Control: Implicit Motives Moderate the Exertion of Self‐Control in Motive‐Related Tasks

Using a dual‐task paradigm, two experiments tested whether aroused implicit motives would moderate the exertion of self‐control in motive‐related tasks. In Study 1, 67 participants first watched a power dialogue and were then asked to either enact the dialogue or simply reproduce it by writing it down. In Study 2, 74 participants performed either the frustrating or the simple version of an achievement‐related sensorimotor task. Participants who were high (compared to low) on the implicit power motive and had exerted power over another person subsequently showed more success at controlling their emotional responses (Study 1). Participants who were high (compared to low) on the implicit achievement motive and who had mastered a frustrating sensorimotor task scored better on a subsequent Stroop task (Study 2). Participants in the control conditions did not differ in self‐control performance regardless of their level of implicit motives. These studies provide evidence that aroused implicit motives regulate how much self‐control is exerted when performing motive‐related tasks that require self‐control.     

Preattentive bias for emotional information in panic disorder with agoraphobia.

A combined emotional Stroop and implicit memory (tachistoscopic identification) task with 3 types of words (panic-related, interpersonal threat, and neutral words) and 2 exposure conditions (subliminal, supraliminal) was administered to 35 patients with panic disorder and 35 age- and sex-matched controls. The patients showed Stroop interference for panic-related words both sub- and supraliminally and a similar but not equally robust effect on interpersonal threat words. On the tachistoscopic identification task, the patients identified more panic-related words than the controls did but showed no implicit memory bias effect. The patients' subliminal Stroop interference for panic-related words was found to correlate with trait anxiety and depression, although not with anxiety sensitivity.     

Neural markers of categorization in 6-month-old infants

Little is known of the neural processes that underlie concept-formation abilities in human infants. We investigated category-learning processes in infants both by using a common behavioral measure and by recording the brain's electrical activity (event-related potentials, or ERPs). ERPs were recorded while 6-month-olds viewed cat images during training, followed by novel cat images interspersed with novel dog images during test. The data indicate that distinct neural signals correspond with learning of a category presented during familiarization, preferential responding to a novel category, and representation of category exemplars at multiple levels of inclusiveness. The results suggest that fundamental components of the neural architecture supporting object categorization are functional within the first half-year of postnatal life, before infants acquire language and young children engage in formal learning of semantic categories. The findings are discussed in terms of their implications for models of category learning and development.     

Cognitive functioning after medial frontal lobe damage including the anterior cingulate cortex: a preliminary investigation

Two patients with medial frontal lobe damage involving the anterior cingulate cortex (ACC) performed a range of cognitive tasks, including tests of executive function and anterior attention. Both patients lesions extended beyond the ACC, therefore caution needs to be exerted in ascribing observed deficits to the ACC alone. Patient performance was compared with age and education matched healthy controls. Both patients showed intact intellectual, memory, and language abilities. No clear-cut abnormalities were noted in visuoperceptual functions. Speed of information processing was mildly reduced only in Patient 2 (bilateral ACC lesion). The patients demonstrated weak or impaired performance only on selective executive function tests. Performance on anterior attention tasks was satisfactory. We tentatively suggest that our findings are inconsistent with anterior attention theories of ACC function based on neuroimaging findings. We propose that the data may imply that the ACC does not have a central role in cognition. We speculate that our findings may be compatible with the view that the ACC integrates cognitive processing with autonomic functioning to guide behaviour.     

Dimensional proposal to assess humor appreciation

The aim of this work is to carry out a dimensional proposal for the assessment of humor appreciation. First, theoretical frames on sense of humor and particularly on humor appreciation are presented. These theoretical frames are related to the methodological characteristics of studies centered to assess humor appreciation. Then, it is justified the creation of a new scale, and it is specified the aim of assessment and the target population which this new scale is focused on. Finally, a dimensional proposal it is concretized and analyzed by a group of experts. Their judgments are presented and they are analyzed considering reviewed empirical and theoretical works. The results support some theoretical validity evidences of this dimensional proposal about humor appreciation.     

How Preschoolers Associate Power with Gender in Male-Female Interactions: A Cross-Cultural Investigation

Sex Roles - Interactions between males and females often display a power imbalance. Men tend to adopt more dominant physical postures, lead conversations more, and are more likely to impose their...     

Decoding human brain activity during real-world experiences

The human brain evolved to function and survive in a highly stimulating, complex and fast-changing world. Attempting to ascertain the neural substrates of operating in naturalistic contexts represents a huge challenge. Recently, however, researchers have begun to use several innovative analysis methods to interrogate functional magnetic resonance imaging (fMRI) data collected during dynamic naturalistic tasks. Central to these new developments is the inventive approach taken to segregating neural activity linked to specific events within the overall continuous stream of complex stimulation. In this review, we discuss the recent literature, detailing the key studies and their methods. These analytical techniques can be applied in a wide range of cognitive domains and, thus, offer exciting new opportunities for gaining insights into the brain bases of thoughts and behaviours in the real-world setting where they normally occur.     

Contrasting two models of academic self‐efficacy – domain‐specific versus cross‐domain – in children receiving and not receiving special instruction in mathematics

In social cognitive theory, self‐efficacy is domain‐specific. An alternative model, the cross‐domain influence model, would predict that self‐efficacy beliefs in one domain might influence performance in other domains. Research has also found that children who receive special instruction are not good at estimating their performance. The aim was to test two models of how self‐efficacy beliefs influence achievement, and to contrast children receiving special instruction in mathematics with normally‐achieving children. The participants were 73 fifth‐grade children who receive special instruction and 70 children who do not receive any special instruction. In year four and five, the children's skills in mathematics and reading were assessed by national curriculum tests, and in their fifth year, self‐efficacy in mathematics and reading were measured. Structural equation modeling showed that in domains where children do not receive special instruction in mathematics, self‐efficacy is a mediating variable between earlier and later achievement in the same domain. Achievement in mathematics was not mediated by self‐efficacy in mathematics for children who receive special instruction. For normal achieving children, earlier achievement in the language domain had an influence on later self‐efficacy in the mathematics domain, and self‐efficacy beliefs in different domains were correlated. Self‐efficacy is mostly domain specific, but may play a different role in academic performance depending on whether children receive special instruction. The results of the present study provided some support of the Cross‐Domain Influence Model for normal achieving children.