Subjective Reports and Postural Performance Among Older Adult Passengers on a Sea Voyage

We sought to evaluate changes in subjective experience and postural performance among older adult passengers during the first 2 days of a sea voyage. On a vacation cruise, volunteer passengers gave verbal ratings of subjective bodily stability and awareness of ship motion followed by performance on the tandem Romberg test while facing fore-aft and athwartship. Data were collected when the ship was at the dock and on each of the first 2 full days at sea. Ship motion reduced subjective bodily stability and performance on the Romberg test and increased awareness of ship motion. On the first day at sea, Romberg performance was more strongly impacted by motion of the ship in roll (i.e., when facing fore-aft) than in pitch (i.e., when facing athwartship). Also on the first day at sea, subjective bodily stability was correlated with Romberg performance when facing fore-aft but not when facing athwart. In summary, at the beginning of the voyage older adult passengers on a sea voyage exhibited consistent changes in subjective awareness and postural performance. Subjective reports were correlated with postural performance in ways that appeared to be functional. We suggest that this finding may help to illuminate the role of conscious awareness within ecological analyses of perception and action.     

Effect of Motivational Goals on the Causal Realism of Counterfactual Thoughts

Counterfactual thinking refers to mental comparisons of reality with imagined alternatives of it. The “functional view” of counterfactual thinking suggests that upward counterfactuals (which improve on reality) serve a preparative function and downward counterfactuals (which worsen reality) serve an affective function. This view presumes that people generate counterfactuals that focus on cause(s) that have actually produced the negative outcomes. The two experiments reported here demonstrate that people spontaneously manipulate the causal content of their counterfactuals, depending on their motivational goals. Specifically, it was found that when people aim to feel better about a poor decision they generate less realistic (upward) counterfactuals, experience less negative affect and tend to attribute the outcome to less controllable causes than when they aim to learn from their experience. The theoretical and practical implications of these findings are discussed.     

Simplicity: a unifying principle in cognitive science?

Much of perception, learning and high-level cognition involves finding patterns in data. But there are always infinitely many patterns compatible with any finite amount of data. How does the cognitive system choose 'sensible' patterns? A long tradition in epistemology, philosophy of science, and mathematical and computational theories of learning argues that patterns 'should' be chosen according to how simply they explain the data. This article reviews research exploring the idea that simplicity drives a wide range of cognitive processes. We outline mathematical theory, computational results and empirical data that underpin this viewpoint.     

Meaning Reconstruction in Bereaved Mothers: A Pilot Study Using the Biographical Grid Method

In this study, a constructivist data collection technique, the biographical grid method (BGM), was modified to accommodate the specific needs of mothers who had experienced the death of a child from cancer, and for the purpose of exploring meaning reconstruction and posttraumatic growth (PTG) in this population. Contrasting cases studies of two bereaved mothers are used to illustrate the research and clinical potential of the BGM in examining meaning reconstruction and PTG following the death of a child.     

The effects of temporal synchrony on the perceived organization of elements in spatially symmetric and asymmetric grids

Three experiments were conducted to investigate the influence of fast temporally segmented presentations of alternate rows or columns on the perception of grids of either symmetrically or asymmetrically spaced dot-like stimuli. Experiments 1a and 1b demonstrated that observers were able to discriminate between temporally segmented presentations of rows/columns stimuli, but showed a reduced performance in discrimination between non-temporally segmented stimuli and temporally segmented stimuli that were spatially unstructured. Experiment 2 confirmed the influence of temporally segmented presentations of rows and columns using elements whose mean luminance summed to the same as the display background. Experiment 3 demonstrated that the influence of temporal cues reduced when display elements were asymmetrically spaced. The results are discussed in terms of the influence of external spatio-temporal factors on the neural mechanisms of visual grouping.     

Children's perception of the Thatcher illusion: Evidence for development in configural face processing

The present study reports the ability of young children to detect the Thatcher illusion. Participants were asked to detect the “unusual” face in a two-alternative forced-choice version of the Thatcher illusion with greyscale (Experiment 1) and monochrome “Mooney” face images (Experiment 2). The results of Experiment 1 showed that all groups of children could see the Thatcher illusion. When processing demands were increased (Experiment 2) sensitivity to the Thatcher task increased with age and was absent for 6-year-olds. The results are discussed in terms of differential task demands determining whether evidence for or against the development of configural face processing is found.