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141.
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143.
Ashley N. Junghans-Rutelonis Julia R. Craner Chelsea M. Ale Cynthia Harbeck-Weber Philip R. Fischer Karen E. Weiss 《Journal of clinical psychology in medical settings》2018,25(4):471-484
Intensive pain rehabilitation programs are effective in increasing functioning for youth with chronic pain (CP). However, the utility of such programs for youth with CP and co-morbid postural orthostatic tachycardia syndrome (POTS) is rarely examined. In addition, studies examining mediators of treatment for CP are sparse. This paper compares treatment outcomes for youth with CP (n?=?117) and youth with CP?+?POTS (n?=?118). Additionally, depression and pain catastrophizing were tested as potential mediators of treatment effects. Significant treatment improvements were found for functional disability, depression, pain catastrophizing, and perceived pain intensity but with no differences between groups. Improvements in depressed mood, pain catastrophizing (helplessness subscale), and pain severity partially mediated functioning improvement. Pain severity was not a significant mediator in the CP?+?POTS group. We concluded that depression and pain catastrophizing, especially the helplessness domain, can impact functioning improvement in adolescents with CP and POTS and are particularly important to target in treatment. 相似文献
144.
John Martin Fischer 《The Journal of Ethics》2018,22(2):97-112
I argue that we can interpret the stories told by near-death experiences (NDEs) in a naturalistic way. Thus, the profound significance of NDEs need not come from a supernaturalistic conception of them, according to which in an NDE the individual is in touch with a heavenly realm. We can respect the sincerity of NDE reports, but we can capture their meaning in a naturalistic framework. 相似文献
145.
Rico Fischer Carlos Ventura-Bort Alfons Hamm Mathias Weymar 《Cognitive, affective & behavioral neuroscience》2018,18(4):680-693
Response conflicts play a prominent role in the flexible adaptation of behavior as they represent context-signals that indicate the necessity for the recruitment of cognitive control. Previous studies have highlighted the functional roles of the affectively aversive and arousing quality of the conflict signal in triggering the adaptation process. To further test this potential link with arousal, participants performed a response conflict task in two separate sessions with either transcutaneous vagus nerve stimulation (tVNS), which is assumed to activate the locus coeruleus-noradrenaline (LC-NE) system, or with neutral sham stimulation. In both sessions the N2 and P3 event-related potentials (ERP) were assessed. In line with previous findings, conflict interference, the N2 and P3 amplitude were reduced after conflict. Most importantly, this adaptation to conflict was enhanced under tVNS compared to sham stimulation for conflict interference and the N2 amplitude. No effect of tVNS on the P3 component was found. These findings suggest that tVNS increases behavioral and electrophysiological markers of adaptation to conflict. Results are discussed in the context of the potentially underlying LC-NE and other neuromodulatory (e.g., GABA) systems. The present findings add important pieces to the understanding of the neurophysiological mechanisms of conflict-triggered adjustment of cognitive control. 相似文献
146.
Fischer TM Jacobson DA Counsell AN Pelot MA Demorest K 《Neurobiology of learning and memory》2011,95(3):248-259
The goal of this study was to characterize the contribution of a population of low-threshold mechanoreceptors to short-term habituation of siphon-elicited reflex responses in Aplysia californica. Since the location of their somata is unknown, we refer to them as the Unidentified Low-Threshold mechanoreceptors (ULTs). The ULTs operate in parallel to the higher-threshold and well-characterized LE sensory neurons, yet little is known regarding their contribution to behavioral plasticity. Using extracellular recordings from the siphon nerve, we found that habituation training that favors ULT activation resulted in a significant decrease in afferent activity at training intervals up to 1 min per stimulus (1 min ISI). To determine how this reduction impacts responses at other sites of the reflex network, we used intracellular recordings to measure training-induced changes in either L29 excitatory interneurons or LFS siphon motor neurons. With a 30s ISI, changes at both locations were training site-specific and matched the rate of change of afferent activity, implicating regulated sensory activity as a primary mechanism. With a shorter training interval (1s ISI), site-specificity of training was not observed in the L29s, but was still preserved in the motor neurons. For both, the rate of change during training was faster than the rate of change of afferent activity. Taken together, we conclude that regulation of low-threshold sensory neuron activity can play a significant role in short-term habituation, but other network processes may be recruited at more rapid training intervals. 相似文献
147.
Peter Fischer 《Psychopraxis》2011,14(2):4-4
Nachruf
Eine herausragende Pers?nlichkeit der Wiener Psychiatrie ist nicht mehr 相似文献148.
Empathic responding may be elicited by different processes, depending on the available situational and affective cues. We investigated two such processes, perspective-taking and nonverbal mimicry. In Study 1, participants watched an embarrassed or unembarrassed confederate dancing to music while either remaining objective or engaging in perspective-taking. Both manipulations affected empathic embarrassment. Study 2 further examined the effects of targets' embarrassment displays and observers' prior experience with the situation upon spontaneous perspective-taking, expressive mimicry, and empathic embarrassment. Embarrassment displays increased mimicry, but also spontaneous perspective-taking and subsequent empathy. Prior experience moderated the effects of embarrassment displays on perspective-taking and empathy. Path analyses demonstrated that embarrassment displays exerted indirect effects on empathic embarrassment through both perspective-taking and mimicry. The results suggest that available affective and situational cues can activate different routes to empathy, and highlight the value of simultaneously investigating target- and observer-based sources of influence. 相似文献
149.
We report two studies validating a new standardized set of filmed emotion expressions, the Amsterdam Dynamic Facial Expression Set (ADFES). The ADFES is distinct from existing datasets in that it includes a face-forward version and two different head-turning versions (faces turning toward and away from viewers), North-European as well as Mediterranean models (male and female), and nine discrete emotions (joy, anger, fear, sadness, surprise, disgust, contempt, pride, and embarrassment). Study 1 showed that the ADFES received excellent recognition scores. Recognition was affected by social categorization of the model: displays of North-European models were better recognized by Dutch participants, suggesting an ingroup advantage. Head-turning did not affect recognition accuracy. Study 2 showed that participants more strongly perceived themselves to be the cause of the other's emotion when the model's face turned toward the respondents. The ADFES provides new avenues for research on emotion expression and is available for researchers upon request. 相似文献
150.
Yariv Festman Jos J. Adam Jay Pratt Martin H. Fischer 《Attention, perception & psychophysics》2013,75(4):644-649
Previous research on the interaction between manual action and visual perception has focused on discrete movements or static postures and discovered better performance near the hands (the near-hand effect). However, in everyday behaviors, the hands are usually moving continuously between possible targets. Therefore, the current study explored the effects of continuous hand motion on the allocation of visual attention. Eleven healthy adults performed a visual discrimination task during cyclical concealed hand movements underneath a display. Both the current hand position and its movement direction systematically contributed to participants’ visual sensitivity. Discrimination performance increased substantially when the hand was distant from but moving toward the visual probe location (a far-hand effect). Implications of this novel observation are discussed. 相似文献