Destinism: Puzzle Solved

Philosophia - In a recent article in this journal, “Destinism,” Andrew Bailey presents a puzzle (in different versions) for “Destinism,” the view that the only things we can...     

Replies to Timmerman and Gorman

In my reply to the thoughtful comments of Timmerman and Gorman, I take up, and further explore, some main questions, including: Can a horribly immoral person (a moral monster) lead a meaningful life? Similarly, can a significantly deluded person lead a meaningful life? What role do judgments of meaningfulness play in our normative framework? How can we understand the debate between those who would embrace the possibility of immortality and those who would reject it? What is the role of narrativity in evaluating meaning in human lives, and how would this concept apply to immortal lives? If death can be a bad thing for the deceased, should we fear death (the status of being dead)?

     

Deep thinking increases task-set shielding and reduces shifting flexibility in dual-task performance

Performing two tasks concurrently is difficult, which has been taken to imply the existence of a structural processing bottleneck. Here we sought to assess whether and to what degree one's multitasking abilities depend on the cognitive-control style one engages in. Participants were primed with creativity tasks that either called for divergent thinking-which were suspected to induce a holistic, flexible task processing mode, or convergent thinking-which were assumed to induce a systematic, focused processing mode. Participants showed reduced cross-talk between tasks and increased task-component switching costs (dual-task costs) for the convergent-thinking group compared to both, a divergent-thinking group and a neutral control group. The results suggest that the cognitive-control style people engage in prior to the task predicts their multitasking performance.     

Mental states inside out: Switching costs for emotional and nonemotional sentences that differ in internal and external focus

Mental states—such as thinking, remembering, or feeling angry, happy, or dizzy—have a clear internal component. We feel a certain way when we are in these states. These internal experiences may be simulated when people understand conceptual references to mental states. However, mental states can also be described from an “external” perspective, for example when referring to “smiling.” In those cases, simulation of visible outside features may be more relevant for understanding. In a switching costs paradigm, we presented semantically unrelated sentences describing emotional and nonemotional mental states while manipulating their internal or external focus. The results show that switching costs occur when participants shift between sentences with an internal and an external focus. This suggests that different forms of simulation underlie understanding these sentences. In addition, these effects occurred for emotional and nonemotional mental states, suggesting that they are grounded in a similar way—through the process of simulation.     

Electrophysiological examination of embodiment in vision and action

A wealth of behavioral data has shown that the visual properties of objects automatically potentiate motor actions linked with them, but how deeply are these affordances embedded in visual processing? In the study reported here, we used electrophysiological measures to examine the time course of affordance resulting from the leftward or rightward orientation of the handles of common objects. Participants were asked to categorize those objects using a left- or right-handed motor response. Lateralized readiness potentials showed rapid motor preparation in the hand congruent with the affordance provided by the object only 100 to 200 ms after stimulus presentation and up to 400 ms before the actual response. Examination of event-related potentials also revealed an effect of handle orientation and response-hand congruency on the visual P1 and N1 components. Both of these results suggest that activity in the early sensory pathways is modulated by the action associations of objects and the intentions of the viewer.     

Better not to deal with two tasks at the same time when stressed? Acute psychosocial stress reduces task shielding in dual-task performance

A major control demand in successful dual-task performance is the task-specific separation of task-goal representations and of the related stimulus-response translation processes. In the present study, we investigated how these cognitive control processes of task shielding are affected by acute psychosocial stress. Fifty-six healthy participants were exposed to either an acute psychosocial stressor (the Trier Social Stress Test) or a standardized control situation prior to a dual task. Task shielding was assessed by analyzing the interference of Task 2 processing on prioritized Task 1 performance. Following successful stress induction, as indicated by increases in salivary α-amylase (sAA) and cortisol that reflect increases in sympathetic nervous system and hypothalamus-pituitary-adrenal (HPA) axis activity, respectively, stressed individuals displayed reduced task shielding relative to controls. This result was further substantiated by a correlation between treatment-related increase in cortisol, but not sAA, and between-task interference, suggesting a potential role of the HPA stress response for the development of the observed effects. As an additional finding, when the volunteers were categorized with regard to their action-state orientation, their orientation did not interact with stress but did reveal generally increased between-task interference, and thus inferior task shielding, for state-oriented as compared to action-oriented individuals.     

Provider, veteran, and family perspectives on family education in Veterans Affairs community-based outpatient facilities

The Veterans Affairs (VA) healthcare system is dedicated to providing high-quality mental health services to all veterans, including the nearly 40% of enrolled veterans living in rural areas. Family education programs regarding mental illness and posttraumatic stress disorder, mandated for delivery in all VA medical centers and some community-based outpatient clinics (CBOCs), have been developed and provided primarily in large, urban medical centers. This qualitative investigation involved interviews with CBOC providers and veterans and families who live in rural areas and/or seek care in CBOCs to ascertain their perceptions of the benefits, feasibility, structural and cultural barriers, and logistical preferences regarding family education. The perspectives and concerns that emerged in these interviews were combined with expert knowledge to identify the resources and considerations a VAMC would want to address when translating and implementing similar programming into CBOCs. Although institutional, logistic, and attitudinal challenges were described, all three stakeholder groups endorsed the need for family education, did not see the barriers as insurmountable, and provided creative solutions. Administrators and CBOC clinicians may benefit by anticipating and problem solving around the key issues raised when developing family programming.     

The closer the better: Hand proximity dynamically affects letter recognition accuracy

A growing literature has suggested that processing of visual information presented near the hands is facilitated. In this study, we investigated whether the near-hands superiority effect also occurs with the hands moving. In two experiments, participants performed a cyclical bimanual movement task requiring concurrent visual identification of briefly presented letters. For both the static and dynamic hand conditions, the results showed improved letter recognition performance with the hands closer to the stimuli. The finding that the encoding advantage for near-hand stimuli also occurred with the hands moving suggests that the effect is regulated in real time, in accordance with the concept of a bimodal neural system that dynamically updates hand position in external space.     

The influence of trait anger,trait anxiety and negative urgency on disordered eating

Negative affectivity and impulsivity are potential risk factors for eating pathology. Both are heterogeneous constructs, yielding varied effect sizes in the prediction of pathology. The use of a specific construct, negative urgency, the tendency to act impulsively while distressed, improves the predictive utility of ‘impulsivity’ in eating pathology. The use of specifically defined affectivity constructs may similarly improve theories of risk. Anger and anxiety both represent high arousal, negatively valenced emotions, but promote different interactions with the environment; approach vs. avoidance. Undergraduate women completed measures of negative urgency, trait anger, trait anxiety, and eating pathology 3 months apart. Negative urgency and trait anxiety prospectively accounted for unique variance in increases in global eating pathology, while negative urgency prospectively accounted for unique variance in binge eating. Anger was not a significant predictor. Results suggest that the use of both specifically defined impulsivity and affectivity constructs improves predictive utility of traits in eating pathology.