The effect of fearful faces on the attentional blink is task dependent

In a set of three rapid serial visual presentation experiments, we investigated the effect of fearful and neutral face stimuli on the report of trailing scene targets. When the emotional expression of the face stimuli had to be indicated, fearful faces induced a stronger attentional blink (AB) than did neutral faces. However, with identical physical stimulation, the enhancement of the AB by fearful faces disappeared when participants had to judge the faces’ gender. If faces did not have to be reported, no AB was observed. Thus, fearful faces exhibited an effect on the AB that crucially depended on the observer’s attentional set. Hence, the AB can be influenced by an emotional T1 when T1 has to be reported, but this influence is modulated by task context. This result indicates a close connection between temporal attention and emotional processing that is modulated by task context.     

Estimating long-range dependence in time series: An evaluation of estimators implemented in R

Recent studies have shown that many physiological and behavioral processes can be characterized by long-range correlations. The Hurst exponent H of fractal analysis and the fractional-differencing parameter d of the ARFIMA methodology are useful for capturing serial correlations. In this study, we report on different estimators of H and d implemented in R, a popular and freely available software package. By means of Monte Carlo simulations, we analyzed the performance of (1) the Geweke—Porter-Hudak estimator, (2) the approximate maximum likelihood algorithm, (3) the smoothed periodogram approach, (4) the Whittle estimator, (5) rescaled range analysis, (6) a modified periodogram, (7) Higuchi’s method, and (8) detrended fluctuation analysis. The findings—confined to ARFIMA (0, d, 0) models and fractional Gaussian noise—identify the best estimators for persistent and antipersistent series. Two examples combining these results with the step-by-step procedure proposed by Delignières et al. (2006) demonstrate how this evaluation can be used as a guideline in a typical research situation.     

Metaphilosophy of Mind: how Do Minds Investigate Minds? Refutation of the Theocentric View

I shall propose metaphilosophy of mind as the philosophy of mind investigating mind. That is to say, I pose the question of how knowledge of mind provided by cognitive science, broadly construed, is constrained by the epistemic position of the knower, i.e. by the very fact that it is undertaken by a mind. Here I would like to propose a minimal framework, based on two distinctions: (i) the standard one between empirical and conceptual analysis; (ii) a new one, between the internal questions of mind and the boundary questions of mind. I shall then combine these distinctions to arrive at several ways of investigating the mind, the brain and cognition. On this ground, I will discuss the notion of epistemological theocentrism as outlined by Henry Allison and argue against the perspective I call theocentric philosophy of mind. From this angle I will be able to address skepticism which cannot be defeated but actually can be, as I put it, disarmed. Finally, metaphilosophy of mind based on the abovementioned distinctions elicits a perspective that is not sufficiently delineated by cognitive scientists and philosophers: empirical way of addressing the boundary questions of mind.     

EDMUND ENGELMAN: PHOTOGRAPHER OF SIGMUND FREUD'S HOME AND OFFICES

Over the course of several days in May 1938, Edmund Engelman, a young, talented and resourceful Viennese photographer, immortalised the home and offices of Sigmund Freud in a series of pictures that represent the fullest visual documentation of the setting in which Freud lived and worked throughout almost his entire career. He also photographed Freud, his daughter and his wife. These photographs are best known through a book that also contains a memoir of Engelman (Engelman, 1976). The photographs have been recognised primarily for their documentary value and not appreciated for their artistic merit. Through a series of interviews with Engelman and members of his family, biographical data about the artist and information about the photographs has been gathered that heretofore has not been published. This historical note elaborates on Engelman's life before and after taking the photographs, and places the photographs in the context of the life of the photographer.     

Moving arms: the effects of sensorimotor information on the problem-solving process

Embodied cognition postulates a bi-directional link between the human body and its cognitive functions. Whether this holds for higher cognitive functions such as problem solving is unknown. We predicted that arm movement manipulations performed by the participants could affect the problem-solving solutions. We tested this prediction in quantitative reasoning tasks that allowed two solutions to each problem (addition or subtraction). In two studies with healthy adults (N?=?53 and N?=?50), we found an effect of problem-congruent movements on problem solutions. Consistent with embodied cognition, sensorimotor information gained via right or left arm movements affects the solution in different types of problem-solving tasks.     

Motivation and self‐regulation: The role of want‐to motivation in the processes underlying self‐regulation and self‐control

Research on self‐regulation has largely focused on the idea of effortful self‐control, which assumes that exerting willpower will lead to greater success. However, in recent years, research has challenged this perspective and instead proposes that effortless self‐regulation is more adaptive for long‐term goal pursuit. Taking into consideration the burgeoning literature on effortless self‐regulation, here we propose that motivation—or the reasons why we pursue our goals—plays an integral role in this process. The objective of the present paper is to highlight how motivation can play a role in how self‐regulation unfolds. Specifically, we propose that pursuing goals because you want‐to (vs. have‐to) is associated with better goal attainment as a function of experiencing less temptations and obstacles. While the reason why want‐to motivation relates to experiencing fewer obstacles has yet to be thoroughly explored, here we propose some potential mechanisms drawing from recent research on self‐regulation. We also provide recommendations for future research, highlighting the importance of considering motivation in the study of self‐regulatory processes.