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111.
Qualitative methodology was used to develop items for a questionnaire designed to examine the perspectives of parents regarding the impact of the sensory environment on participation for children aged 3 to 5 who have autism spectrum disorders. A total of 34 parents/caregivers of children with autism spectrum disorders and 8 experts in autism spectrum disorders and/or measurement completed qualitative interviews for concept, content review, and cognitive interviewing. The result was a pool of 35 items for home/community domains for 3 scales. The outcome of this study was the development and content validation of the Participation and Sensory Environment Questionnaire.  相似文献   
112.
This paper reports a study which examined an interaction between action planning and processing of perceptual information in two different sensory modalities. In line with the idea that action planning consists in representing the action’s sensory outcomes, it was assumed that different types of actions should be coupled with different modalities. A visual and auditory oddball paradigm was combined with two types of actions: pointing and knocking (unrelated to the perceptual task). Results showed an interactive effect between the action type and the sensory modality of the oddballs, with impaired detection of auditory oddballs for knocking (congruent) action, as compared to a pointing (incongruent) action. These findings reveal that action planning can interact with modality-specific perceptual processing and that preparing an action presumably binds the respective perceptual features with an action plan, thereby making these features less available for other tasks.  相似文献   
113.
A cognitive autopoietic system is a dynamic, self-generating, organized and self-organizing thing which self-regulates (by internal rearrangement) with respect to an external medium. The present model of the effect of stress on a cognitive autopoietic (ESCA) system captures the notion of how a priori cognitive structures (categories), combined with external sensations, constitute the basis for the development of cognitive structures (CS) and their architecture. The ESCA model integrates the fact that the mind–environment relation has a twofold effect: on one hand, it enables self-regulation of mind (the matching of external sensations with CS), but on the other hand, it poses a potential perturbation on the same, which may result in the breakdown of the self-regulation of mind. The architecture of the CS developed on the basis of the ESCA model is consistent with the manifestations of the effect of stress on mind behavior at different levels. The ESCA model predicts that the faculty to concatenate synthetic propositions, which enables enhanced categorical conscious cognition (ECCC) on the basis of CS, is inhibited by stress, thus reducing cognition to a mechanized heuristic categorical conscious cognition (HCCC) and/or an unconscious cognition (UC) level. The ESCA model explains the casual relation between cognition of persistent social stress and self-esteem, sensory deprivation and self-cognition, a mechanized mind state and accumulated stress, and the effect of stress activated short-term emotions on cognition. Finally, it is speculated how persistently perceived uncertainty may induce stress.  相似文献   
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The authors aimed to compare the weight bearing on hands during sit-to-stand (STS) movement in children with cerebral palsy (CP) and typical children (TC), verify its effect on postural oscillation, and analyze the relationship between weight bearing on hands and postural oscillation. Twenty children with CP (Gross Motor Function Classification System levels I and II) and 35 TC performed STS with and without anterior hands support. Mann-Whitney test compared weight bearing between groups. Wilcoxon test investigated differences in postural oscillation between the conditions with and without anterior hand support for both groups. The Spearman correlation tested the relationship between weight-bearing and postural oscillation during the hand support condition. Children with CP bore more weight on hands than TC to perform STS. The hand support reduced postural oscillation during the second phase of STS in both groups. In the CP group, greater weight bearing was related with lower postural oscillation in the beginning of STS. Although children with CP were able to perform STS without support, they bore more weight on their hands to perform the task than TC. Moreover, children with CP and TC use mechanical and somatosensory information to modulate their postural control during STS in different ways.  相似文献   
117.
重复启动对时序知觉的影响   总被引:1,自引:1,他引:0  
张锋  黄希庭  郭秀艳 《心理学报》2008,40(7):766-773
在时序判断任务中,重复启动导致被试把启动的靶刺激知觉为先出现的。知觉加工增强观和决策反应偏向观都试图解释其机制,但仍存在争议。本研究采用图形材料,通过三个实验系统考察了重复启动对时序知觉的影响。实验结果显示,启动和指导语都具有显著效应。这说明,重复启动对时序知觉的影响涉及知觉加工和决策水平两个方面。实验还首次发现,在启动的靶刺激先出现时发生了重复启动效应的反转。最后,研究提出了双加工表征匹配调节假说,用以综合解释目前的研究结果  相似文献   
118.
本研究通过1个田野实验和2个实验室实验探讨了社会拥挤对消费者感官刺激偏好的影响及内在机制。相比于不拥挤,社会拥挤会增加消费者对强(vs.弱)感官刺激的偏好(实验1),这一效应受感知控制缺失驱动(实验2)。权力感对社会拥挤与消费者感官刺激偏好的关系起到调节作用(实验3),即当个体的权力感较高时,社会拥挤对强感官刺激偏好的促进作用才成立;反之,这种效应便会消失。  相似文献   
119.
This commentary questions two common assumptions underlying discussions of how digital technology can enrich the consumer experience. First, broad conceptualizations tend to accommodate augmented reality and virtual reality under a single metaverse umbrella. This commentary draws attention to differences between the two and to the present-day prevalence of augmented reality experiences. Second, discussions of the metaverse tend to focus on visual experiences. This commentary draws attention to the impact that augmented reality is having through other senses. I argue that augmented reality experiences are ubiquitous because smartphones and wearables enrich our everyday life with haptic and sonic information.  相似文献   
120.
Outstanding advantages of OFDM helps high data rate communication systems such as Digital Video Broadcasting (DVB) and mobile worldwide interoperability for microwave access (mobile Wi-MAX). But, OFDM system grieves from grave issue of high PAPR. In OFDM system data output is superposition of multiple sub-carriers and leads to big data. In this case some instantaneous power output might increase greatly and become far higher than the mean power of system. In order to make Neutrosophic data for less PAPR criteria, Gaussian filter based Costas coding is proposed. This paper also proposes feeding the Orthogonal Frequency Division Multiplexed signal (OFDM) into a phase accumulator to obtain frequency modulation, with the aim of reducing the peak to average power ratio (PAPR). For associated radar with modulated waveform mentioned here can be used to enhance the performance. It is widely used to analyze the variation of the output waveform further, the implementation results using MATLAB show that the ratio of average power to peak power is reducing considerably in comparing with the conventional method. Consequently; the signal can assume to fade in a frequency selective channel without an equalizer.  相似文献   
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