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231.
232.
Andrea Bosco Giulio E. Lancioni Marta Olivetti Belardinelli Nirbhay N. Singh Mark F. O’Reilly Jeff Sigafoos 《Cognitive processing》2009,10(4):355-359
A diagnosis of vegetative state represents a serious predicament, which basically precludes/minimizes rehabilitation perspectives.
Reliability of the assessment approach in these situations is of paramount importance, but not easy to achieve. In recent
studies, a learning assessment procedure has been suggested as a supplement in the diagnostic process and assessed with eight
patients. The procedure involves an ABABCB sequence in which A represents baseline phases with no stimulation available, B
intervention phases with stimuli delivered contingently on target responses, and C a control condition. This condition involves
stimulation presented non-contingently. The patients’ ability to associate responding with environmental stimuli and thus
increase such responding during the B phases, and reduce it during the A and C phases, may be considered a sign of learning.
Learning might be viewed as representative of forms of concrete knowledge and presumably basic levels of consciousness. Preliminary
results indicate that (a) signs of learning may appear in patients with a previous diagnosis of vegetative state and (b) the
presence of those signs may require a revision of their diagnostic label and a reappraisal of their rehabilitation perspectives. 相似文献
233.
Avoidance behaviour is a crucial component of fear and is importantly involved in the maintenance of anxiety disorders. Presumably, fear conditioning leads to avoidance of the feared object or context. A virtual reality contextual fear conditioning paradigm was used to investigate the association between explicit conditioning effects and subsequent avoidance behaviour. Mild electric shocks were administered in one context (anxiety context), but never in a second context (safety context). Subsequent avoidance behaviour was assessed by asking participants to choose two out of three contexts (a neutral context was added) to visit again. Participants avoided the anxiety context, but did not prefer the safety over the neutral context. Participants with substantial conditioning effects, as reflected in differential valence, arousal and anxiety ratings, avoided the anxiety context but not the safety context. In sum, we demonstrated an association between context conditioning effects on an explicit level and later avoidance behaviour. 相似文献
234.
235.
Salamone JD Correa M Nunes EJ Randall PA Pardo M 《Journal of the experimental analysis of behavior》2012,97(1):125-146
For many years, it has been suggested that drugs that interfere with dopamine (DA) transmission alter the "rewarding" impact of primary reinforcers such as food. Research and theory related to the functions of mesolimbic DA are undergoing a substantial conceptual restructuring, with the traditional emphasis on hedonia and primary reward yielding to other concepts and lines of inquiry. The present review is focused upon the involvement of nucleus accumbens DA in effort-related choice behavior. Viewed from the framework of behavioral economics, the effects of accumbens DA depletions and antagonism on food-reinforced behavior are highly dependent upon the work requirements of the instrumental task, and DA-depleted rats show a heightened sensitivity to response costs, especially ratio requirements. Moreover, interference with accumbens DA transmission exerts a powerful influence over effort-related choice behavior. Rats with accumbens DA depletions or antagonism reallocate their instrumental behavior away from food-reinforced tasks that have high response requirements, and show increased selection of low reinforcement/low cost options. Nucleus accumbens DA and adenosine interact in the regulation of effort-related functions, and other brain structures (anterior cingulate cortex, amygdala, ventral pallidum) also are involved. Studies of the brain systems regulating effort-based processes may have implications for understanding drug abuse, as well as symptoms such as psychomotor slowing, fatigue or anergia in depression and other neurological disorders. 相似文献
236.
Fonseca-Pedrero E Lemos-Giráldez S Paino M Santarén-Rosell M Sierra-Baigrie S Muñiz J 《The Spanish journal of psychology》2012,15(2):840-849
The main goal of this research was to examine the reliability and different sources of validity evidence of the Oviedo Schizotypy Assessment Questionnaire-Abbreviated (ESQUIZO-Q-A) in nonclinical adolescents. The final sample was made up of 1,455 participants, 705 males (48.5%), with a mean age of 15.92 years (SD = 1.18). The internal consistency of the subscales ranged from .62 to .75. The analysis of its internal structure yielded a three-dimensional solution based on the dimensions: Reality Distortion, Anhedonia, and Interpersonal Disorganization. Likewise, the goodness-of-fit indices derived from the Confirmatory Factor Analysis for the hypothesized three-factor model were adequate. The three dimensions of the ESQUIZO-Q-A were significantly correlated with the subscales of the Strengths and Difficulties Questionnaire. The ESQUIZO-Q is a brief and simple self-report with adequate psychometric properties for the assessment of schizotypal traits in nonclinical adolescent populations. Future research should continue to explore the metric quality of the ESQUIZO-Q-A (e.g., sensitivity and specificity) and incorporate the new advances in psychological and educational assessment such as Computerized Adaptive Testing. 相似文献
237.
Great apes communicate with gestures in flexible ways. Based on several lines of evidence, Tomasello and colleagues have posited that many of these gestures are learned via ontogenetic ritualization—a process of mutual anticipation in which particular social behaviors come to function as intentional communicative signals. Recently, Byrne and colleagues have argued that all great ape gestures are basically innate. In the current study, for the first time, we attempted to observe the process of ontogenetic ritualization as it unfolds over time. We focused on one communicative function between bonobo mothers and infants: initiation of “carries” for joint travel. We observed 1,173 carries in ten mother–infant dyads. These were initiated by nine different gesture types, with mothers and infants using many different gestures in ways that reflected their different roles in the carry interaction. There was also a fair amount of variability among the different dyads, including one idiosyncratic gesture used by one infant. This gestural variation could not be attributed to sampling effects alone. These findings suggest that ontogenetic ritualization plays an important role in the origin of at least some great ape gestures. 相似文献
238.
Marta Bassi Gertraud Bacher Luca Negri Antonella Delle Fave 《Applied research in quality of life》2013,8(4):427-448
In a time of global economic crisis, workers’ well-being is of paramount concern for both organizations and society at large. Conceptualizations within positive psychology distinguish between hedonic and eudaimonic well-being components, and call for the need to include them in an integrated perspective. Within this framework, the present study aimed at investigating the impact of situational uncertainty on eudaimonic and hedonic well-being, and the spillover effects of work into individuals’ lives. Data were collected from 85 Italian employees at a thriving insurance company and at a failing one. Participants were administered Job Content Questionnaire, Eudaimonic and Hedonic Happiness Investigation, Satisfaction with Life Scale, and Psychological Wellbeing Scales. Data were analyzed through hierarchical regression analyses. Concerning well-being at work, employees at the failing company reported higher job insecurity and lower job happiness compared to employees at the thriving company, while job meaning scores did not differ between groups. Concerning general well-being, an unexpected positive association was found between positive relations and situational uncertainty. A spillover effect of job happiness and meaning on life satisfaction, environmental mastery, and autonomy was also detected. In particular, a moderating effect of job meaning was identified, showing that attributing high importance to one’s job had wide affective consequences, spilling over to global life evaluations. Findings bring forward practical suggestions for well-being promotion, in terms of shifting domain importance (Wu Journal of Happiness Studies 10:37–47, 2009), and investing in multiple life areas (Sirgy and Wu Journal of Happiness Studies 10:183–196, 2009) for the promotion of a balanced life. 相似文献
239.
Franco Delogu Giulia Lampis Marta Olivetti Belardinelli 《Journal of Cognitive Psychology》2013,25(1):46-61
Previous research shows that music ability provides positive effects on language processing. This study aims at better clarifying the involvement of different linguistic subdomains in this cross-domain link, assessing whether or not musicality and music expertise enhance phonological and lexical tone processing of Mandarin Chinese. In two experiments different groups of adults and children with no previous experience in tonal languages, were invited to perform a same–different task trying to detect phonological and tonal variations in pairs of sequences of monosyllabic Mandarin Chinese words. Main results show that all subjects perform significantly better in detecting phonological variations rather than tonal ones. They also show that both melodic proficiency and music expertise are good predictors for a better tonal, but not phonological identification. Data lead to a model of music-to-language transfer effect in which musicality selectively affects linguistic intonation while leaving phonological processing substantially unaffected. 相似文献
240.
The current project was designed to examine the contention that written prayers about difficult life events function as self-disclosure to God and are structurally and effectively the same as other forms of written self-disclosure, at least in the short term. Over four writing sessions, 155 participants either wrote about mundane experiences (the control group) or wrote narratives about traumatic or stressful life events that were targeted at no one, targeted at a person of their choice, or construed as prayers to God. The results indicate that written prayers are lexically similar to the other two types of written narratives and distinct from the control group. Furthermore, the immediate effects of trauma writing on mood and physical well-being were similar as well. These findings have potentially important implications for understanding the relationship between personal prayer and a variety of health outcomes. 相似文献