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951.
Matthew D. Hilchey Jason Rajsic Greg Huffman Jay Pratt 《Attention, perception & psychophysics》2017,79(3):807-819
When there is a relatively long interval between two successive stimuli that must be detected or localized, there are robust processing costs when the stimuli appear at the same location. However, when two successive visual stimuli that must be identified appear at the same location, there are robust same location costs only when the two stimuli differ in their responses; otherwise same location benefits are observed. Two separate frameworks that inhibited attentional orienting and episodic integration, respectively, have been proposed to account for these patterns. Recent findings hint at a possible reconciliation between these frameworks—requiring a response to an event in between two successive visual stimuli may unmask same stimulus and same location costs that are otherwise obscured by episodic integration benefits in identification tasks. We tested this hybrid account by integrating an intervening response event with an identification task that would otherwise generate the boundary between same location benefits and costs. Our results showed that the intervening event did not alter the boundary between location repetition benefits and costs nor did it reliably or unambiguously reverse the common stimulus-response repetition benefit. The findings delimit the usefulness of an intervening event for disrupting episodic integration, suggesting that effects from intervening response events are tenuous. The divide between attention and feature integration accounts is delineated in the context of methodological and empirical considerations. 相似文献
952.
Dora Matzke Matthew Hughes Johanna C. Badcock Patricia Michie Andrew Heathcote 《Attention, perception & psychophysics》2017,79(4):1078-1086
We used Bayesian cognitive modelling to identify the underlying causes of apparent inhibitory deficits in the stop-signal paradigm. The analysis was applied to stop-signal data reported by Badcock et al. (Psychological Medicine 32: 87-297, 2002) and Hughes et al. (Biological Psychology 89: 220-231, 2012), where schizophrenia patients and control participants made rapid choice responses, but on some trials were signalled to stop their ongoing response. Previous research has assumed an inhibitory deficit in schizophrenia, because estimates of the mean time taken to react to the stop signal are longer in patients than controls. We showed that these longer estimates are partly due to failing to react to the stop signal (“trigger failures”) and partly due to a slower initiation of inhibition, implicating a failure of attention rather than a deficit in the inhibitory process itself. Correlations between the probability of trigger failures and event-related potentials reported by Hughes et al. are interpreted as supporting the attentional account of inhibitory deficits. Our results, and those of Matzke et al. (2016), who report that controls also display a substantial although lower trigger-failure rate, indicate that attentional factors need to be taken into account when interpreting results from the stop-signal paradigm. 相似文献
953.
Brent R. Collett Kathleen A. Kapp-Simon Erin Wallace Mary Michaeleen Cradock Lauren Buono Matthew L. Speltz 《Child neuropsychology》2017,23(1):83-98
Children with single-suture craniosynostosis (SSC) have higher rates of learning disabilities and related neurocognitive problems than unaffected peers. Executive function (EF) and attention are thought to be areas of particular vulnerability, though studies to date have been limited by small sample sizes and a lack of control groups. We evaluated 179 school-aged children with SSC (cases) and 183 unaffected controls at an average age of 7 years using clinician-administered and parent and teacher report measures of EF and attention. Among children with SSC, we examined differences as a function of suture location (sagittal, metopic, unicoronal, or lambdoid) and age of corrective surgery. We used linear regression analyses, adjusted for potential confounders, to compare the two groups on all outcome measures. Cases scored lower than controls on most measures, though the magnitude of these differences was small and most were statistically insignificant. The largest relative deficit was on a measure of inhibitory control. Results changed little in sensitivity analyses adjusting for potential attrition bias and for the effects of developmental and academic interventions. Among cases, there were few differences in relation to the location of suture fusion or timing of surgery. Overall, we found limited evidence of broad deficits in EF or attention in children with SSC relative to unaffected controls. Neurocognitive development for children with SSC appears to be variable, across affected children and outcomes assessed. Further research is needed to understand the potential sources of this variability. 相似文献
954.
Matthew D. Williams-Wyant 《亚洲哲学》2017,27(3):263-277
The aim of this essay is to clarify Nāgārjuna’s use of the term pratijñā (thesis) in verse 29 of the Vigrahavyāvartanī (VV) as situated in its contemporaneous thriving debate culture. In contrast to the standard formulation, which interprets the term pratijñā as a reference to the thesis of ?ūnyatā (emptiness) proffered by Nāgārjuna in the Mūlamadhyamakakārikā, an examination of the debate culture in, and leading up to, second-century CE India shows that the term pratijñā refers to the first of five steps within the Nyaya five-membered syllogism as it functions within a vita??ā form of debate. Through an examination of the context in which this verse was written, the association made between Nāgārjuna’s use of pratijñā in the VV and ?ūnyatā within other texts becomes dislodged, thereby demonstrating the inadequacy of the standard formulation and the need for a revised understanding of the intent of the VV. 相似文献
955.
Jo-Elle Stein Matthew Modini Caroline Hunt Maree J. Abbott 《Journal of psychopathology and behavioral assessment》2017,39(1):147-163
Cognitive factors, including beliefs, thoughts and assumptions have been found to play an important role in the development and maintenance of Social Anxiety Disorder. Trait cognitive self-report measures of social anxiety are widely used in research and clinical settings. It is imperative that only measures with good psychometric properties are used in order to interpret assessment scores accurately, and to make valid and reliable conclusions. The present systematic review evaluated the psychometric properties of trait cognitive self-report measures of social anxiety. Relevant studies were identified via a comprehensive and systematic search of academic databases. The reported psychometric properties of included studies were analysed by applying an appraisal of adequacy tool developed by Terwee et al. (2007). Of the 3091 studies identified, 50 studies met the inclusion criteria, and they included 21 measures. Included studies demonstrated that a number of measures had some adequate psychometric properties, however, no measure fulfilled criteria for all psychometric properties according to the appraisal tool. Findings highlight the need to further establish the psychometric properties of cognitive self-report measures of social anxiety in clinical and research settings through additional empirical studies. 相似文献
956.
Matthew M. Walsh Glenn Gunzelmann Hans P. A. Van Dongen 《Psychonomic bulletin & review》2017,24(6):1785-1807
Computational models have become common tools in psychology. They provide quantitative instantiations of theories that seek to explain the functioning of the human mind. In this paper, we focus on identifying deep theoretical similarities between two very different models. Both models are concerned with how fatigue from sleep loss impacts cognitive processing. The first is based on the diffusion model and posits that fatigue decreases the drift rate of the diffusion process. The second is based on the Adaptive Control of Thought – Rational (ACT-R) cognitive architecture and posits that fatigue decreases the utility of candidate actions leading to microlapses in cognitive processing. A biomathematical model of fatigue is used to control drift rate in the first account and utility in the second. We investigated the predicted response time distributions of these two integrated computational cognitive models for performance on a psychomotor vigilance test under conditions of total sleep deprivation, simulated shift work, and sustained sleep restriction. The models generated equivalent predictions of response time distributions with excellent goodness-of-fit to the human data. More importantly, although the accounts involve different modeling approaches and levels of abstraction, they represent the effects of fatigue in a functionally equivalent way: in both, fatigue decreases the signal-to-noise ratio in decision processes and decreases response inhibition. This convergence suggests that sleep loss impairs psychomotor vigilance performance through degradation of the quality of cognitive processing, which provides a foundation for systematic investigation of the effects of sleep loss on other aspects of cognition. Our findings illustrate the value of treating different modeling formalisms as vehicles for discovery. 相似文献
957.
Matthew M. Carper 《Cognitive and behavioral practice》2017,24(1):121-127
Anxiety Coach is a smartphone application (“app”) for iOS devices that is billed as a self-help program for anxiety in youth and adults. The app is currently available in the iTunes store for a one-time fee of $4.99. Anxiety Coach is organized around three related content areas: (a) self-monitoring of anxiety symptoms, (b) learning about anxiety and its treatment, and (c) guiding users through the development of a fear hierarchy and completion of exposure tasks. Although the app includes psychoeducation about anxiety as well as information regarding specific skills individuals can use to cope with anxiety (e.g., cognitive restructuring), the primary focus of the app is on exposure tasks. As such, the app includes a large library of potential exposure tasks that are relevant to treating common fears and worries, making Anxiety Coach useful to clients and clinicians alike. Additionally, Anxiety Coach prompts users to provide fear ratings while they are carrying out an exposure task and displays a message instructing users to stop the exposure once fear ratings drop by half. These features work together to create an app that has the potential to greatly increase the reach of exposure-based cognitive behavioral therapy for anxiety. 相似文献
958.
Matthew R. Sanders Kylie Burke Ronald J. Prinz Alina Morawska 《Clinical child and family psychology review》2017,20(1):36-44
The quality of parenting children receive affects a diverse range of child and youth outcomes. Addressing the quality of parenting on a broad scale is a critical part of producing a more nurturing society. To achieve a meaningful population-level reduction in the prevalence rates of child maltreatment and social and emotional problems that are directly or indirectly influenced by parenting practices requires the adoption of a broad ecological perspective in supporting families to raise children. We make the case for adopting a multilevel, whole of population approach to enhance competent parenting and describe the essential tasks that must be accomplished for the approach to be successful and its effects measurable. We describe how a theoretically integrated system of parenting support based on social learning and cognitive behavioral principles can be further strengthened when the broader community supports parental participation. Implications for policy and practice are discussed. 相似文献
959.
Lawrence P. BehmerJr. Matthew J. C. Crump 《Attention, perception & psychophysics》2017,79(8):2435-2448
Typists can type 4 to 5 keystrokes per second at around 95% accuracy, yet they appear to have poor declarative knowledge of key locations. Logan and Crump (2011, Psychology of Learning and Motivation, Vol. 54, pp. 1–27) accounted for this paradox by proposing that typing is hierarchically organized into two loops, with an outer loop that transforms sentences into words and passes each word, one at a time, to an inner loop that transforms each word into its constituent keystrokes; however, the nature of the inner loop’s spatial knowledge is not well understood. Key locations may be learned through the experiences of locating and traversing between keys. In daily life, people tend to type structured language, and, as a consequence, certain keys and key-to-key transitions are experienced more frequently than others. Here, we asked whether or not this knowledge is structured hierarchically. For example, knowledge of key locations may be nested within representations of words, or the inner loop may rely on knowledge that is independent from higher level structures. To test this, we had people type English, English-like, and random strings during normal, partially occluded, and occluded typing. In both partially occluded and occluded typing, error rates were higher while typing random strings compared to English and English-like strings, whereas there was no difference in error rates between English and English-like strings. This suggests that typists’ spatial knowledge of the keyboard is not driven by hierarchical word-level representations, but instead is likely driven by a collection of individual processes, such as knowledge of the sequential structure of language acquired by typing more frequently occurring letters. 相似文献
960.
Suicidal behavior is a prevalent problem among adolescents and young adults. Although most theoretical models of suicide suggest that this behavior results from the interaction of different risk factors, most prior studies have tested only bivariate associations between individual risk factors and suicidal behaviors. The current study was designed to address this limitation by testing the effect of an emotion–cognition interaction on suicide attempts among youth. Specifically, we hypothesized that the interaction of emotion reactivity and problem-solving skills would statistically predict the probability of a recent suicide attempt among 87 adolescents and young adults. Results revealed a significant interaction, such that emotion reactivity was strongly associated with the probability of a suicide attempt among those with poor problem-solving skills, moderately associated among those with average problem-solving skills, and not significantly associated among those with good problem-solving skills. The next generation of studies on suicidal behavior should continue to examine how risk factors interact to predict this dangerous outcome. 相似文献