Modeling judgment of sequentially presented categories using weighting and sampling without replacement

In a series of experiments, Kusev et al. (Journal of Experimental Psychology: Human Perception and Performance 37:1874–1886, 2011) studied relative-frequency judgments of items drawn from two distinct categories. The experiments showed that the judged frequencies of categories of sequentially encountered stimuli are affected by the properties of the experienced sequences. Specifically, a first-run effect was observed, whereby people overestimated the frequency of a given category when that category was the first repeated category to occur in the sequence. Here, we (1) interpret these findings as reflecting the operation of a judgment heuristic sensitive to sequential patterns, (2) present mathematical definitions of the sequences used in Kusev et al. (Journal of Experimental Psychology: Human Perception and Performance 37:1874–1886, 2011), and (3) present a mathematical formalization of the first-run effect—the judgments-relative-to-patterns model—to account for the judged frequencies of sequentially encountered stimuli. The model parameter w accounts for the effect of the length of the first run on frequency estimates, given the total sequence length. We fitted data from Kusev et al. (Journal of Experimental Psychology: Human Perception and Performance 37:1874–1886, 2011) to the model parameters, so that with increasing values of w, subsequent items in the first run have less influence on judgments. We see the role of the model as essential for advancing knowledge in the psychology of judgments, as well as in other disciplines, such as computer science, cognitive neuroscience, artificial intelligence, and human–computer interaction.     

Appetitive and aversive olfactory learning induce similar generalization rates in the honey bee

Appetitive and aversive learning drive an animal toward or away from stimuli predicting reinforcement, respectively. The specificity of these memories may vary due to differences in cost–benefit relationships associated with appetitive and aversive contexts. As a consequence, generalization performances may differ after appetitive and aversive training. Here, we determined whether honey bees show different rates of olfactory generalization following appetitive olfactory conditioning of the proboscis extension response, or aversive olfactory conditioning of the sting extension response. In both cases, we performed differential conditioning, which improves discrimination learning between a reinforced odor (CS+) and a non-reinforced odor (CS?) and evaluated generalization to two novel odors whose similarity to the CS+ and the CS? was different. We show, given the same level of discriminatory performance, that rates of generalization are similar between the two conditioning protocols and discuss the possible causes for this phenomenon.     

Exploring Maternal Grief: A Mixed-Methods Investigation of Mothers’ Responses to the Death of a Child From Cancer

This study investigated the meaning-making phenomena underlying the responses of 13 bereaved mothers to the death of a child from cancer. Using a mixed-methods research design incorporating constructivist data collection methods, we found specific characteristics, coping processes, and factors to distinguish adaptive as opposed to complicated grief responses to this type of loss. However, the findings did not distinguish the bereaved mothers themselves as “adaptive” or “complicated grievers,” as they all evidenced both types of responses to their loss within or across different datasets. Despite this finding, the mothers’ results varied in terms of the proportions of adaptive as compared to complicated grief responses to their loss, which in turn were related to features of their self-construing, change or reinforcement of their world assumptions, ongoing relationship to their child and others in their social world, and management of loss- and restoration-oriented coping. Results suggest the utility of constructivist and cognitive coping models and methods in illuminating the experience of parental bereavement.     

Probabilistic single function dual process theory and logic programming as approaches to non-monotonicity in human vs. artificial reasoning

In this paper, it is argued that single function dual process theory is a more credible psychological account of non-monotonicity in human conditional reasoning than recent attempts to apply logic programming (LP) approaches in artificial intelligence to these data. LP is introduced and among other critiques, it is argued that it is psychologically unrealistic in a similar way to hash coding in the classicism vs. connectionism debate. Second, it is argued that causal Bayes nets provide a framework for modelling probabilistic conditional inference in System 2 that can deal with patterns of inference LP cannot. Third, we offer some speculations on how the cognitive system may avoid problems for System 1 identified by Fodor in 1983. We conclude that while many problems remain, the probabilistic single function dual processing theory is to be preferred over LP as an account of the non-monotonicity of human reasoning.     

Contextual Bias in Verbal Credibility Assessment: Criteria‐Based Content Analysis,Reality Monitoring and Scientific Content Analysis

Verbal credibility assessment encompasses several methods used to evaluate the credibility of statements by examining their content. In two experiments, we tested to what extent these methods are sensitive to contextual bias. Four statements were presented, although their context was manipulated by confronting raters with extra‐domain information that either enhanced or diminished the credibility of the statements. In Experiment 1, 32 police officers analysed the statements using scientific content analysis. In Experiment 2, 128 undergraduates analysed the statements using criteria derived from criteria‐based content analysis, reality monitoring or scientific content analysis. Results showed that all three methods were equally vulnerable to contextual bias. Copyright © 2013 John Wiley & Sons, Ltd.     

Choice Blindness and Preference Change: You Will Like This Paper Better If You (Believe You) Chose to Read It!

Choice blindness is the finding that participants both often fail to notice mismatches between their decisions and the outcome of their choice and, in addition, endorse the opposite of their chosen alternative. But do these preference reversals also carry over to future choices and ratings? To investigate this question, we gave participants the task of choosing which of a pair of faces they found most attractive. Unknown to them, we sometimes used a card trick to exchange one face for the other. Both decision theory and common sense strongly suggest that most people would easily notice such a radical change in the outcome of a choice. But that was not the case: no more than a third of the exchanges were detected by the participants. We also included a second round of choices using the same face pairs, and two stages of post‐choice attractiveness ratings of the faces. This way we were able to measure preference strength both as choice consistency and by looking at measures of rating differences between chosen and rejected options. We found that the initially rejected faces were chosen more frequently in the second choice, and the perceived attractiveness of these faces was increased even in uncoupled individual ratings at the end of the experiment. This result is discussed in relation to Chen and Risen's recent criticism of the Free Choice Paradigm, as it shows that choices can affect future preferences. Copyright © 2013 John Wiley & Sons, Ltd.     

Teenage pregnancy: Seeking patterns that promote family harmony

Survey data from the RELATE inventory (www.relate-institute.org) was gathered for married couples (N = 374) and was analyzed for effects of marital quality on perceptions of weight as a problem in the marriage, activity level, and eating habits. Results indicate that wife marital quality was positively associated with weight being a problem for wives, while husband marital quality was negatively associated with weight being a problem for both husbands and wives in the relationship. Wife marital quality was also positively associated with husband activity level, while husband marital quality was negatively associated with husband activity level. Implications for clinicians are discussed.     

The Role of Spirituality in Sport Psychology Consulting: An Analysis and Integrative Review of Literature

Abstract

This review suggests that the concept of spirituality should be considered seriously within sport psychology research and consultancy. Four key areas are addressed: how spirituality may be reconciled into the athlete-centered model; the integration of spirituality and religious observances into mental skills training (MST); the relationship between spirituality and positive psychological states such as flow and peak experiences; and the role of spirituality in counseling. Recent work has acknowledged the importance of spirituality in consultancy work (Ravizza, 2002a Ravizza, K. 2002a. A philosophical construct: A framework for performance enhancement. International Journal of Sport Psychology, 33: 4–18. [Web of Science ®] , [Google Scholar]) and religious beliefs and rituals for some athletes (Czech & Burke, in press). Despite extensive study in psychology, research of spirituality in sport psychology has been slow to emerge. Some of the reasons for this are discussed and suggestions made in relation to how this important concept can be integrated into research and consultancy work. Future research and theoretical work should focus on both performance enhancement and life-skills development.