Dual brain,creativity, and health

Abstract

The importance of the specialized functions of the right and left hemispheres is reviewed, with applications to education, treatment, creativity, and research duly noted. Experimental studies serve as indications of how alexithymia and creativity of the so‐called dual brain has been examined. Patients with com‐missurotomies, patients in psychotherapy, priests, creative subjects, and normal controls have been compared through a variety of experimental methods in terms of hemispheric specialization. The results indicate that creative and healthy subjects tend to have freer access to mutual interaction of both hemispheres without marked inhibitory or disinhibitory effects from either cerebral hemisphere.     

Pharmaceutical Ethics and Physician Liability in Side Effects

We review Side Effects, a 2013 film involving bioethics, pharmaceuticals, and financial conspiracies. After the main character Emily unsuccessfully attempts suicide, she begins receiving care from a psychiatrist, Dr. Banks. Following numerous events, she is placed on a fictional antidepressant, Ablixa, which leads her to suffer from sleepwalking. During an episode of sleepwalking she commits a serious crime. The film poses an interesting dilemma: How responsible would the physician be in this instance? We analyze this question by applying numerous ethical principles.     

Stage of physical activity and approach-avoidance achievement goals in university students

ObjectivesThe main purpose of the present investigation was to examine approach-avoidance achievement goal patterns across stages of physical activity participation. In addition, sex differences in the approach and avoidance goals were examined as well as goal contrast scores (i.e., approach minus avoidance) as secondary purposes.DesignThe research was cross-sectional in design.MethodParticipants were 804 university students who completed a questionnaire assessing their stage of physical activity, 2 × 2 achievement goals, and demographics.ResultsMANOVA results revealed hypothesized and significant (p < .001) physical activity stage differences in the mastery and performance approach goals as well as significant (p's < .05) gender differences in both performance goals. A significant (p < .01) gender by physical activity stage interaction emerged for the performance goals and surprisingly, was found mainly in the advanced exercise stages (i.e., action, maintenance, and long-term maintenance). Last, significant (p < .001) gender and physical activity stage main effects emerged for the achievement goal contrasts. Males endorsed both the mastery and performance contrasts more than females. Collapsed for both sexes, the contrast scores were greater in the physically active than the non-active stages.ConclusionsFindings suggested that interventions targeting physical activity in university students should emphasize approach goals relative to the avoidance goals. Particular attention should be paid to the performance goals in the maintenance and long-term maintenance stages as they appeared theoretically inconsistent for the female participants. Last, the split in the preparation stage (active, non-active) should be incorporated into future stage based investigations as the split demonstrated two meaningfully different subgroups.     

Knowledge as a thick concept: explaining why the Gettier problem arises

The Gettier problem has stymied epistemologists. But, whether or not this problem is resolvable, we still must face an important question: Why does the Gettier problem arise in the first place? So far, philosophers have seen it as either a problem peculiar to the concept of knowledge, or else an instance of a general problem about conceptual analysis. But I would like to steer a middle course. I argue that the Gettier problem arises because knowledge is a thick concept, and a Gettier-like problem is just what we should expect from attempts at analyzing a thick concept. Section 2 is devoted to establishing the controversial claim that knowledge is thick, and, in Sect. 3, I show that there is a general problem for analyzing thick concepts of which the Gettier problem is a special instance. I do not take a stand on whether the Gettier problem, or its general counterpart, is resolvable. My primary aim is to bring these problems into better focus.     

Children's Perceptions of Unfair Reward and Punishment

Being able to judge the fairness of a personal encounter and having an appreciation of the associated feelings are important components of prosocial development. This study explored a common feature of everyday experience: unfair reward and unfair punishment. Scenarios depicting 4 possible variants of unfairness were read to children aged 9 to 11 years, who then made judgments regarding the degree of unfairness and the nature and strength of the feelings experienced by the characters. Our hypothesis that children with classroom conduct problems would judge the non-receipt of a deserved reward as worse than the receipt of an undeserved punishment was not confirmed. This differentiation, however, did prove to be characteristic of boys in general, but not girls. Being asked to think of unfair things that had actually happened did not appear to influence the children's responses to hypothetical unfair situations, but did reveal that children experience and remember a variety of unfair events in everyday family contexts. This study provides evidence that children actively monitor the receipt of social reward and punishment according to their perception of fairness.     

The Mutual Development of Intersubjectivity and Metacognitive Capacity in the Psychotherapy for Persons with Schizophrenia

While cognitive behavioral approaches have been shown to help some individuals with schizophrenia, these approaches may be limited when working with patients with impairments in the metacognitive abilities required to form complex and integrated representations of themselves and others. In response, this paper explores the possibility that a key to working with patients with relatively impaired self-reflectivity lies in explicitly focusing on a patient’s intersubjective experience within psychotherapy. We offer theoretical and empirical support for the assertion that the tolerance and capacity for intersubjectivity is a basis for the development of self-reflectivity in general. We also explore how the fostering of intersubjective processes in psychotherapy might enable some patients to form more complex ideas about themselves and so better ward off delusions in the face of the challenges of daily life. To illustrate these principles we present the case of a patient with tenaciously held delusions and limited capacity for self-reflection. We discuss when and how the therapist’s awareness and verbalization of intersubjective processes within session allowed her and the patient to develop more complex and consensually valid ideas about him as a being in the world, which then assisted the patient to achieve improvements in a number of domains in his life.     

The Disambiguation Prediction Effect

ABSTRACT

Children tend to select a novel object rather than a familiar object when asked to identify the referent of a novel label. Current accounts of this so-called disambiguation effect do not address whether children have a general metacognitive representation of this way of determining the reference of novel labels. In two experiments (each N = 48), three- and four-year-olds received a prediction task that required such a representation. In the initial phase, children completed four disambiguation test trials that were presented as instances of the same “game.” In the next phase, they received four additional trials. These differed only in that before the label was presented, children were asked to predict which object “was going to be right.” On the first prediction trial, most four-year-olds predicted the novel object, whereas most three-year-olds did not. On subsequent trials, despite having received feedback regarding predictions, three-year-olds showed no tendency to begin to predict the novel object, whereas most four-year-olds continued to make this prediction. These findings add to the evidence that most children develop a general metacognitive representation of their tendency to map novel labels onto novel rather than familiar objects some time around their fourth birthday.     

Animal Rights and the Problem of r-Strategists

Wild animal reproduction poses an important moral problem for animal rights theorists. Many wild animals give birth to large numbers of uncared-for offspring, and thus child mortality rates are far higher in nature than they are among human beings. In light of this reproductive strategy – traditionally referred to as the ‘r-strategy’ – does concern for the interests of wild animals require us to intervene in nature? In this paper, I argue that animal rights theorists should embrace fallibility-constrained interventionism: the view that intervention in nature is desirable but should be constrained by our ignorance of the inner workings of ecosystems. Though authors sometimes assume that large-scale intervention requires turning nature into an enormous zoo, I suggest an alternative. With sufficient research, a new form of gene editing called CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) promises to one day give us the capacity to intervene without perpetually interfering with wild animals’ liberties.     

Listeners learn phonotactic patterns conditioned on suprasegmental cues

Language learners are sensitive to phonotactic patterns from an early age, and can acquire both simple and 2nd-order positional restrictions contingent on segment identity (e.g., /f/ is an onset with /æ/but a coda with /?/). The present study explored the learning of phonototactic patterns conditioned on a suprasegmental cue: lexical stress. Adults first heard non-words in which trochaic and iambic items had different consonant restrictions. In Experiment 1, participants trained with phonotactic patterns involving natural classes of consonants later falsely recognized novel items that were consistent with the training patterns (legal items), demonstrating that they had learned the stress-conditioned phonotactic patterns. However, this was only true for iambic items. In Experiment 2, participants completed a forced-choice test between novel legal and novel illegal items and were again successful only for the iambic items. Experiment 3 demonstrated learning for trochaic items when they were presented alone. Finally, in Experiment 4, in which the training phase was lengthened, participants successfully learned both sets of phonotactic patterns. These experiments provide evidence that learners consider more global phonological properties in the computation of phonotactic patterns, and that learners can acquire multiple sets of patterns simultaneously, even contradictory ones.     

Impact of Physical Abuse on Internalizing Behavior Across Generations

This study investigated the multigenerational impact of mothers’ own exposure to physical maltreatment on internalizing symptoms in her child after accounting for her parenting practices, depression, and the child’s own exposure to stressful life events. Children (n?=?101, ages 5–16), predominantly African American, were recruited into this cross sectional study using ethnographic mapping and targeted sampling for high-risk neighborhoods. Mothers reported retrospectively on their own exposure to physical maltreatment in childhood, their parenting practices, as well as current depressive symptoms. Maternal report of her child’s exposure to stressful life events and child behavior was also collected. Maternal childhood exposure to physical maltreatment was significantly associated with her child’s internalizing symptoms (p?=?.004); this effect remained after accounting for child sex, maternal depressive symptoms, harsh parenting practices, and the child’s own exposure to stressful life events. Formal tests of mediation through these pathways were non-significant. Findings suggest mothers’ experience of childhood maltreatment contributes uniquely to children’s internalizing symptoms, potentially through previously uncharacterized pathways. Examination of additional behavioral, psychosocial and biological pathways may help better describe the multi-generational effects of child maltreatment.