Knowledge in science and engineering

It is now fashionable to say that science and technology are social constructions. This is true, or rather, a truism. Man is a social animal. Man is a linguistic animal, and language is social. Hence all products of human activities and everything that involves language are social constructions. But an assertion that covers everything becomes empty. The constructionist mantra that science or technology is “not a simple input from nature” attacks a straw man, for no one denies the necessity of enormous human efforts in research, development, and design. To say that these are social activities should not imply that they are indistinguishable from other social activities such as politicking or profiteering. An investigation into their peculiarities will bring to relief their intellectual and technical characteristics. The argument that science and technology are social constructions because they involve many assumptions is again a truism. Whenever we think, whenever we find things intelligible, we invariably have used some concepts and made some assumptions. Philosophers such as Kant have painstakingly analyzed concepts without which intelligibility is impossible. The important questions are not whether scientists and engineers make assumptions but what kind of assumptions they make; not whether they make judgments, but what kind of reasons they offer to support their judgments. Are the assumptions and justifications all social? Or are they mainly technical? Admittedly, the boundaries between the two are not always sharp, but is it impossible to make any differentiation at all?     

The role of flicker and abrupt displacement in attention capture by motion onsets

Sunny and von Mühlenen (Psychonomic Bulletin & Review, 18, 1050–1056, 2011) showed that an onset of motion captured attention only when the motion was jerky (refreshed at 8 or 17 Hz), but not when it was smooth (33 or 100 Hz). However, it remained unclear why the onset of jerky motion captures attention. In the present study, we systematically tested the role of different aspects of jerky motion in capturing attention. Simple flicker without motion did not capture attention in the same way as jerky motion (Exp. 1). An abrupt displacement between 0.26° and 1.05° captured attention, irrespective of whether the stimulus subsequently continued to move smoothly (Exp. 2) or whether it remained stationary (Exps. 3 and 4). A displaced stimulus that was preceded briefly at the new location by a figure-8 placeholder did not capture attention (Exp. 5). These results are explained within a masking account, according to which abrupt onsets and abrupt displacements receive a processing advantage because they escape forward masking by the preceding figure-8 placeholders.     

Happiness and Leisure Across Countries: Evidence from International Survey Data

We study the statistical link between leisure and happiness. Using survey data from 33 countries in 2007, we find that (1) certain leisure activities, leisure’s role in self-fulfillment and social interaction, and leisure’s relation to work and other spheres of life are significantly linked to individual happiness; (2) the effect of leisure quantity is not as important as other aspects of leisure; and (3) some leisure activities can be negatively associated with happiness. Consistent with findings in previous studies, family income and individual demographic variables such as age and health condition are significantly associated with happiness. National unemployment and political stability also have robustly significant effects on happiness.     

The Incremental Validity of a Short Form of the Ideational Behavior Scale and Usefulness of Distractor,Contraindicative, and Lie Scales

This article describes an empirical refinement of the Runco Ideational Behavior Scale (RIBS). The RIBS seems to be associated with divergent thinking, and the potential for creative thinking, but it was possible that its validity could be improved. With this in mind, three new scales were developed and the unique benefit (or “incremental validity”) of each was assessed. The three validity scales contained (a) distractor items, (b) contraindicative items, or (c) items constituting a lie scale. Step‐wise analyses using the three validity scales indicated very little incremental validity: They were interpreted in the light of psychometric theory, which suggests that their contribution may have been on a behavioral rather than on a statistical level. One additional analysis explored the possibility that a short form could be constructed. The short form of the RIBS was highly correlated with the long form (r = .94). Thus, most decisions made by the short form will be entirely compatible with decisions that would have been reached using the long form. A second significant result was that the RIBS was highly correlated with a check list of creative activities, supporting its concurrent validity.     

Rose-colored glasses gone too far? Mania symptoms predict biased emotion experience and perception in couples

The present study investigated how symptoms of mania—associated with heightened and persistent positive emotion—influence emotion experience and perception during distressing social interactions, whereby the experience of heightened positive emotion may not be socially adaptive. Specifically, mania symptoms were assessed via a validated self-report measure, and used to predict emotion experience and perception during a naturalistic conversation between romantic couples about a time of distress and suffering (N = 68 dyads). Results indicated that mania symptoms were associated with increased positive and decreased negative emotion experience and perception between couples, as well as decreased empathic accuracy for partners’ negative but not positive emotions. These findings suggest that mania symptoms may be associated with “rose-colored” glasses characterized by a positively biased emotional experience and outward perception even during perhaps the most intimate and distressing social situations.