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排序方式: 共有149条查询结果,搜索用时 15 毫秒
111.
信息的性质对内隐社会印象的影响 总被引:4,自引:0,他引:4
为了考察信息的性质对社会印象的影响,通过语义差异法建构了具有六个维度的社会印象量表;采用2×2×8的混合设计,给被试提供自然信息和七类不同性质的社会信息(组内设计),考察了评价人和被评价人性别特征(组间设计)在社会印象形成过程中的作用;同时,还测量了被试的外显性别态度。结果表明,在否定个人智慧、社会地位、性别特征和品质特征时,所形成的社会印象在被评价人性别特征上表现出了差异,并且男女被试都表现出了“好人主义”倾向;在外显性别态度上男女被试设有差异;此外,还分析了用语义差异法测量内隐社会印象的适用性。 相似文献
112.
Upright and inverted faces were used to determine whether 7-month-old infants discriminate emotional expressions on the basis of affectively relevant information. In Experiment 1, infants recognized the similarity of happy faces over changing identities and discriminated this expression from fear and anger when the stimuli were presented upright, but not when they were inverted. In Experiment 2, infants were able to discriminate happiness from fear and anger posed by a single model, regardless of the orientation of the stimuli. From these studies it was suggested that categorizing emotional expressions depends upon attending to affectively relevant, orientation-specific information, whereas the discrimination of emotional expressions can be done on a featural basis, something that remains invariant regardless of the orientation of the stimuli. In Experiment 3, infants discriminated toothy happiness posed by several models from nontoothy happiness and nontoothy anger when the stimuli were presented upright and inverted. Thus, when salient features were available, the infants based their discriminations on perceptual aspects rather than on conceptual aspects such as categories of emotions. 相似文献
113.
Categorization of natural movements by pigeons: visual concept discrimination and biological motion 总被引:5,自引:2,他引:3
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Dittrich W Lea S Barrett J Gurr P 《Journal of the experimental analysis of behavior》1998,70(3):281-299
In three experiments, pigeons were exposed to a discriminated autoshaping procedure in which categories of moving stimuli, presented on videotape, were differentially associated with reinforcement. All stimuli depicted pigeons making defined responses. In Experiment 1, one category consisted of several different scenes of pecking and the other consisted of scenes of walking, flying, head movements, or standing still. Four of the 4 birds for which pecking scenes were positive stimuli discriminated successfully, whereas only 1 of the 4 for which pecking was the negative category did so. In the pecking-positive group, there were differences between the pecking rates in the presence of the four negative actions, and these differences were consistent across subjects. In Experiment 2, only the categories of walking and pecking were used; some but not all birds learned this discrimination, whichever category was positive, and these birds showed some transfer to new stimuli in which the same movements were represented only by a small number of point lights (Johansson's “biological motion” displays). In Experiment 3, discriminations between pecking and walking movement categories using point-light displays were trained. Four of the 8 birds discriminated successfully, but transfer to fully detailed displays could not be demonstrated. Pseudoconcept control groups, in which scenes from the same categories of motion were used in both the positive and negative stimulus sets, were used in Experiments 1 and 3. None of the 8 pigeons trained under these conditions showed discriminative responding. The results suggest that pigeons can respond differentially to moving stimuli on the basis of movement cues alone. 相似文献
114.
品牌名称是重要的品牌资产,在传递品牌价值、构建品牌形象和凸显品牌特征的过程中起到关键作用。以往研究发现,品牌名称的语义特征和语音特征都会对消费者知觉和偏好产生影响,但少有研究考察品牌名称语音特征中叠音的作用。本研究将从婴儿图式的角度,基于刻板印象内容模型,通过4个实验考察叠音品牌名称对消费者知觉和偏好的影响,并检验元音特征和产品类型的调节作用。研究结果表明:(1)与非叠音品牌名称相比,叠音品牌名称会让消费者觉得该品牌更像婴儿,进而感觉该品牌更加温暖,但是能力更低。(2)叠音对于消费者温暖知觉的影响受到元音特征的调节。当品牌名称中含有前元音时,叠音对于温暖知觉的影响会削弱。(3)叠音对于消费者偏好的影响受到产品类型的调节。对于享乐型产品,消费者更偏好叠音品牌名称;对于实用型产品,消费者更偏好非叠音品牌名称。本文为品牌名称的设计提供了指导,同时也丰富了婴儿图式和刻板印象内容模型的理论内涵。 相似文献
115.
In this paper a novel method based on facial skin aging features and Artificial Neural Network (ANN) is proposed to classify the human face images into four age groups. The facial skin aging features are extracted by using Local Gabor Binary Pattern Histogram (LGBPH) and wrinkle analysis. The ANN classifier is designed by using two layer feedforward backpropagation neural networks. The proposed age classification framework is trained and tested with face images from PAL face database and shown considerable improvement in the age classification accuracy up to 94.17% and 93.75% for male and female respectively. 相似文献
116.
117.
Do adapted vignettes improve medical decision‐making capacity for individuals with Alzheimer's disease?
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Liv Thalén Katarina Heimann Mühlenbock Ove Almkvist Maria Eriksdotter Erik Sundström Ing‐Mari Tallberg 《Scandinavian journal of psychology》2017,58(6):497-503
Medical decision‐making capacity (MDC) is known to decline in individuals with Alzheimer's disease (AD). The vignette method uses hypothetical information as a prerequisite for measuring the capacity to make well‐informed decisions to clinical trials. Our aim was to investigate if adapted vignettes can help individuals with mild AD to assimilate information, make decisions and express them in an understandable way, compared to corresponding decisions based on linguistically more demanding vignettes, as measured by the Swedish Linguistic Instrument for Medical Decision‐making (LIMD). Two vignettes from LIMD were altered linguistically with the aim to facilitate understanding for individuals with AD. An experimental within‐subject design was used to study the influence on MDC of readability (original/adapted vignettes) and content (two different clinical trials). We included 24 patients with mild AD in this prospective study, which read all four vignettes along with a few other tests. This allowed us to investigate the association between MDC and cognitive function. Adapted vignettes did not yield significant differences regarding MDC as compared with original vignettes using a two‐way repeated measures analysis of variance. A difference was found between the two clinical trials where LIMD score was significantly higher for Kidney disease than hypertension vignettes. Our results indicate that adapted vignettes may not improve MDC for individuals with mild AD. MDC was affected by which clinical trial the vignettes regarded, which implies that other factors affecting MDC need to be investigated, like length of text and vocabulary used. 相似文献
118.
Bonnotte I 《Journal of psycholinguistic research》2008,37(3):199-217
The present study examined the general hypothesis that, as for nouns, stable representations of semantic knowledge relative
to situations expressed by verbs are available and accessible in long term memory in normal people. Regular associations between
verbs and past tenses in French adults allowed to abstract two superordinate semantic features in the representation of verb
meaning: durativity and resultativity. A pilot study was designed to select appropriate items according to these features:
durative, non-resultative verbs and non-durative, resultative verbs. An experimental study was then conducted to assess semantic
priming in French adults with two visual semantic-decision tasks at a 200- and 100-ms SOA. In the durativity decision task,
participants had to decide if the target referred to a durable or non-durable situation. In the resultativity decision task,
they had to decide if it referred to a situation with a directly observable outcome or without any clear external outcome.
Targets were preceded by similar, opposite, and neutral primes. Results showed that semantic priming can tap verb meaning
at a 200- and 100-ms SOA, with the restriction that only the positive value of each feature benefited from priming, that is
the durative and resultative values. Moreover, processing of durativity and resultativity is far from comparable since facilitation
was shown on the former with similar and opposite priming, whereas it was shown on the latter only with similar priming. Overall,
these findings support Le Ny’s (in: Saint-Dizier, Viegas (eds) Computational lexical semantics, 1995; Cahier de Recherche
Linguistique LanDisCo 12:85–100, 1998; Comment l’esprit produit du sens, 2005) general hypothesis that classificatory properties
of verbs could be interpreted as semantic features and the view that semantic priming can tap verb meaning, as noun meaning. 相似文献
119.
脑的逻辑功能的核磁共振成像及其哲学意义 总被引:1,自引:1,他引:0
张寅生 《医学与哲学(人文社会医学版)》2008,29(11)
国际上关于逻辑对应的脑物理特征的功能核磁共振成像(fMRI)研究的主要成就在于:建立了高级精神活动和低级神经活动的关联关系的试验方法;提出了高级精神活动的(判断和推理)神经计算模型建立方法。这些研究的实验结果表明,逻辑与神经活动具有确定性的对应关系,它证明了强人工智能的观点:导致意识的可验证的实体(或者称为“意识关联物”)就是意识本身。意识的运行方式是可计算的,思维的本质可以还原为机械性的操作步骤,人工智能和人的天然智能在本质上并无二致。 相似文献
120.
孤独症谱系障碍是一类具有遗传基础的儿童发展障碍疾病。近些年, 研究者们从分子病理学层面发现中枢胆碱能神经系统异常与孤独症患者认知和行为异常存在相关性。尸检研究、临床案例、动物模型研究均发现毒蕈碱型(M型)乙酰胆碱受体异常和孤独症的发生有着密切的关系。在以小鼠为模型的行为学研究中, 编码毒蕈碱型乙酰胆碱受体Ⅲ亚型的CHRM3基因突变会导致小鼠出现认知障碍、刻板行为等孤独症样表现。深入了解CHRM3基因的功能将能够帮助研究者进一步解释孤独症的相关行为特征, 为孤独症儿童教育方案的制定提供新的思路和方法。 相似文献