The effect of contrast upon perceived speed: a general phenomenon?

The perceived speed of a grating pattern has often been reported to slow as the contrast of the pattern is reduced (though there are some contradictory reports). The mechanism of this perceived slowing has not yet been established nor have the conditions under which the effect occurs (or does not occur). We have therefore examined a range of stimuli that differ upon such aspects as one versus two dimensions, periodic versus nonperiodic, and whether the stimuli occur within a static window. We have also examined a range of stimulus speeds, different types of motion, and simultaneous versus successive presentations. We have found evidence for contrast-induced changes in perceived speed in all our stimuli, and thus suggest that none of the stimulus factors listed above is critical in producing the effect. Though the pattern of results is complex and shows substantial intersubject variation, we generally found that slowly moving patterns presented simultaneously produced the greatest decrease in perceived speed with decreasing contrast. On the other hand faster speeds and successive presentation produced more veridical matches or even an increase in perceived speed with decreasing contrast.     

Crib death: a biobehavioral phenomenon?

In developed countries, more children under 1 year of age die of crib death (sudden infant death syndrome, SIDS) than of all other causes combined. Researchers and clinicians have proposed many possible causes of SIDS, but the abrupt, unexpected death of some babies remains mysterious and frightening. Although infant behavior may explain some of these deaths, scant attention has addressed behavioral characteristics of babies who die without medical explanation. Any explanation of SIDS must account for the fact that most SIDS deaths occur at 2 to 5 months of age, acknowledging that a protective mechanism appears to spare babies before 2 months but then disappears. The respiratory occlusion reflex serves as an initial defense against smothering and can provide such an explanation. Infantile reflexes wane, after providing opportunities for learned responses to be acquired. During this well-documented neurobehavioral transition from subcortical to cortically mediated responding, some babies, viable for the first 2 months, may become especially vulnerable if they fail to acquire sufficiently strong defensive behaviors needed to prevent occlusion after the waning of the life-preserving reflex. Recent success of back-to-sleep directives, urging that babies sleep on their backs to avoid smothering, supports this hypothesis.     

Emotional clich��s and authentic passions: A phenomenological revision of a cognitive theory of emotion

This paper argues for an understanding of emotion based upon Merleau-Ponty's conceptions of embodiment and passivity. Through a critical assessment of cognitive theories of emotion, and in particular Solomon's theory, it argues (1) that there is a sense in which emotions may be judgments, so long as we understand such judgments as bodily enactments of meaning, but (2) that even understood in this way, the notion of judgment (or construal) can only account for a subset of emotions which I call "emotional clichés," and not for authentic passions. In contrast with Solomon's account which conceives the subject as constituting, this account of emotion requires us to understand subjectivity as moved by meanings in the world, and as sometimes, in an authentic passion, dispossessed by those meanings.     

Cyberbullying: The right value of the phenomenon. Comments on the paper “Cyberbullying: An overrated phenomenon?”

This comment will try to discuss the point raised by Olweus: is cyberbullying just one type of bullying or a distinct phenomenon and how much does it need a specific approach to be investigated? Specifically I will try to support my perspective taking into consideration five areas of investigation: definition, measurement, association between traditional bullying and cyberbullying, possible consequences and interventions.     

The spiritual wellness of Beyers Naudé: A psychobiographical study of a South African anti-apartheid theologian

The study explores and describes Beyers Naudé's (1915–2004) spiritual wellness across his lifespan. Naudé's life history was uncovered through the systematic collection and analyses of life history materials. Data were interpreted applying the Wheel of Wellness model (WoW) by Sweeney and Witmer (1991 Sweeney, T. J., & Witmer, J. M. (1991). Beyond social interest: Striving toward optimum health and wellness. Journal of Individual Psychology, 47(4), 527–540. Retrieved from http://www.utexas.edu/utpress/journals/jip.html [Google Scholar], 1992). Findings suggest that spirituality, as the major life task of the WoW, characterised Naudé's earlier years and also epitomised his later years. Underlying life-span and life-space influences included important life-forces such as the roles of the community, religion, government and politics in his life. Hope and optimism embodied Naudé's belief about promoting and preserving human dignity, human rights and respect for life.     

The tip-of-the-tongue phenomenon: Blocking or partial activation?

Tip-of-the-tongue states may represent the momentary unavailability of an otherwise accessible word or the weak activation of an otherwise inaccessible word. In three experiments designed to address these alternative views, subjects attempted to retrieve rare target words from their definitions. The definitions were followed by cues that were related to the targets in sound, by cues that were related in meaning, and by cues that were not related to the targets. Experiment 1 found that compared with unrelated cues, related cue words that were presented immediately after target definitions helped rather than hindered lexical retrieval, and that sound cues were more effective retrieval aids than meaning cues. Experiment 2 replicated these results when cues were presented after an initial target-retrieval attempt. These findings reverse a previous one (Jones, 1989) that was reproduced in Experiment 3 and shown to stem from a small group of unusually difficult target definitions.     

Feelings of error in reasoning—in search of a phenomenon

Recent research shows that in reasoning tasks, subjects usually produce an initial intuitive answer, accompanied by a metacognitive experience, which has been called feeling of rightness. This paper is aimed at exploring the complimentary experience of feeling of error (FOE), that is, the spontaneous, subtle sensation of cognitive uneasiness arising from conflict detection during thinking. We investigate FOE in two studies with the “bat-and-ball” (B&B) reasoning task, in its standard and isomorphic control versions. Study 1 is a generation study, in which participants are asked to generate their own response. Study 2 is an evaluation study, in which participants are asked to choose between two conflicting answers (normative vs. intuitive). In each study, the FOE is measured by the FOE questionnaire. Results show that the FOE is significantly present in the standard B&B task when participants give a wrong answer, that our questionnaire can measure it, and furthermore, that it is diagnostic of genuine error.     

“The primary process”: The vicissitude of a concept

Abstract

During the first twenty years that Freud spent creating his theory, he assumed that most of the functions responsible for creating mental-thought structures were organized according to two different forms or principles of thought. He called these forms “primary process” and “secondary process”. The “secondary process” is identified with rational thinking and the ego, and it is easy to follow the changes that this concept underwent in the works of Freud that followed. The concept of “primary process”, on the other hand, disappeared from his later works with no explanation. This article traces the changes that the “primary process” underwent in Freud's thinking and examines the connection between his analytical technique and his research method. A close study of the changes that the “primary process” underwent reveals that Freud's developmental thought process included concepts whose directional changes may be termed “regressive”.     

Précis of memory: a philosophical study

This is a response to three critical discussions of my book Memory: A Philosophical Study (Oxford University Press 2010): Marya Schechtman, “Memory and Identity”, Fred Adams, “Husker Du?”, and Sanford Goldberg “The Metasemantics of Memory”.     

Twilight of a Dilemma: A Réplique

In light of the nine open peer commentaries, we further explicate the social projection model and highlight its boundaries. We acknowledge that our model—like any extant model—cannot account for all the available empirical data. Yet the model is strong because it explains cooperation in a variety of social dilemmas and experimental games while deploying only one psychological construct as a parameter. Compared with its competitors, the social projection model more openly recognizes the struggle with uncertainty a person caught in a social dilemma must confront. In a series of simulations (and brute math), we show that cooperation can survive when players (humans) stay the Bayesian course.     

Users’ resistance towards radical innovations: The case of the self-driving car

In this paper we unpack and examine attitudes and potential barriers of end-users towards the self-driving car. We explore whether drivers have (mental) barriers and/or show resistance towards the self-driving car and, given such barriers and resistance are identified, investigate the main underlying reasons. Further, we suggest potential strategic implications for automotive companies and avenues to overcome, or at least mitigate, drivers’ barriers. The paper contributes to a better understanding of end-users’ opinions on radical innovations such as the self-driving car and strives to add value by linking scientific insights from both psychology as well as innovation literature. Only a limited number of studies so far have dealt with the potential barriers of users towards the self-driving car; therefore, it is our intent to provide first empirical evidence to trigger further research and foster a broader discussion on this relevant topic.     

The boston bio-bang: The emergence of a “Regional system of innovation”

In this article we will describe the emergence of a great number of small, regionally concentrated, innovative biotech companies. We see these organizations as “hosts” of concepts and ideas, greatly influencing their spreading over the sector. We have chosen an evolutionary perspective following individual companies in their struggle for survival, describing it as “obtaining food” and “fooling predators.” This struggle gives insight in the behavior of the biotech companies and related institutions as a “system of innovation.” One of our findings is that the variety of biotech companies is conditioned by their selection environment, but that this selection environment allows great variety and even encourage variety by keeping the companies small. Haiko Van der Voort is a research associate who lectures and publishes in a wide range of issues including precess management and system innovations. Martin De Jong is associate professor of public management.     

The psycho-heresy of Rom Harré

The elaboration of Harré's “ethogenic approach” in his various works is discussed. This approach hinges on the notion of rationality as expressive self-display in the context of discourse, and entails the primacy of the social over the individual order and the moral sciences over psychology. Harré's critique of individual psychology, particularly that of the cognitive developmental tradition, is examined critically.     

The drawbridge phenomenon: representational reasoning or perceptual preference?

Two experiments investigated whether infants would look longer at a rotating "drawbridge" that appeared to violate physical laws because they knew that it was causally impossible, as claimed by R. Baillargeon, E. S. Spelke, and S. Wasserman (1985) and R. Baillargeon (1987a). Using a habituation paradigm, they reported that infants looked longer at a display that appeared impossible (rotated 180 degrees while an obstructing box was behind it) than at one that appeared possible (rotated only 112 degrees, appearing to stop at the box). Experiment 1 eliminated habituation to 180 degree screen rotations. Still, infants looked longer at the 180 degree impossible rotations. Critically, however, infants also looked longer at possible 180 degree rotations in Experiment 2, in which no obstruction was present. Moreover, no difference in effect size was found between the 2 experiments. These findings indicate that infants' longer looking at 180 degree rotations is due to simple perceptual preference for more motion. They question R. Baillargeon's (1987a) claim that it is due to infants' representational reasoning about physically impossible object permanence events.