创业专业人才的机会识别与开发策略模型:基于建构主义视角

创业专业人才的机会识别和开发日益成为研究者普遍关注的问题和人力资源管理的重要策略.这方面的研究主要采用了机会识别和开发策略等两种不同的视角.本研究以建构主义视角为新思路,提出创业专业人才的机会识别模型,用以探究创业专业人才的机会形成与开发策略,认为个体从创业环境中建构并发展了机会识别、选择和开发策略的释义,从而使得创业专业人才的机会识别过程成为关键的机制.机会识别、选择和开发等过程交互影响,共同建构了创业专业人才的开发模型.未来研究应更多关注创业机会的建构机制,探索机会的过程整合和决策研究.     

精神分裂症患者在听觉掩蔽环境下的言语识别

深入研究精神分裂症患者特异性的认知障碍有助于精神分裂症的早期发现、早期诊断和早期治疗.本综述在总结精神分裂症患者的听觉和言语识别异常以及听觉注意和听觉工作记忆缺陷的同时,重点阐述了精神分裂症患者完成言语听觉任务时的对掩蔽刺激特别信息掩蔽刺激的异常易感性.本文还特别指出,精神分裂症患者仍然具有利用言语内容启动线索来提高掩蔽下言语识别的能力.本文所总结的研究成果对探讨精神分裂症的病因学基础、寻找新的临床诊断以及治疗和康复手段都具有参考价值.     

A First Step Toward Cognitive Remediation of Voices: a Case Study

Several studies have shown that source‐monitoring errors are related to verbal hallucinations in schizophrenia. An exploratory pilot study has been carried out to investigate the possibility of training patients in how to avoid errors in source‐monitoring. One patient with paranoid schizophrenia and persistent thought insertions was trained for 6?hours to use mnemonic techniques to compensate specific deficits in source‐monitoring. Results show that the patient was able to improve his performance and maintain the acquired progress at a 1‐month follow‐up assessment. These preliminary results are interesting for developing a larger controlled study of cognitive remediation of source‐monitoring deficits.     

Cognitive and emotional empathy in typically developing children: The influence of age,gender, and intelligence

In the current study, the influence of age, gender and IQ on cognitive and emotional empathy in school-aged children and adolescents was examined adopting two behavioural paradigms: participants were shown film clips with different scenes of social interaction to which they were asked to respond. Thus, 134 children aged seven to 17 years (mean age = 138.4 months, sd = 31.66 months) were tested for emotion recognition, perspective taking and emotional empathy. Age strongly influenced components of cognitive empathy and explained 33.5% to 39.1% of the variance. Gender and IQ also were significant predictors, yet only explained 3% to 5%, respectively 8% to 9% of the variance. In contrast, neither age, gender nor IQ were related to emotional empathy. Results suggest developmental maturation of cognitive, but not emotional empathy throughout childhood and adolescence. To explain variability in emotional empathy, additional biological and psychosocial factors need to be studied.     

The effects of precedence on Navon-induced processing bias in face recognition

Macrae and Lewis (2002) Macrae, C. N. and Lewis, H. L. 2002. Do I know you? Processing orientation and face recognition. Psychological Science, 13: 194–196. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar] showed that repeated reporting of the global dimension of Navon stimuli improved performance in a subsequent face identification task, whilst reporting the features of the Navon stimuli impaired performance. Using a face composite task, which is assumed to require featural processing, Weston and Perfect (2005) Weston, N. J. and Perfect, T. J. 2005. The effects of processing bias on the composite effect. /precode>. Psychonomic Bulletin and Review, 12: 1038–1042. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar] showed the complementary pattern: Featural responding to Navon letters speeded performance. However, both studies used Navon stimuli with global precedence, in which the overall configuration is easier to report than the features. Here we replicate the two studies above, whilst manipulating the precedence (global or featural) of the letter stimuli in the orientation task. Both studies replicated the previously reported findings with global precedence stimuli, but showed the reverse pattern with local precedence stimuli. These data raise important questions as to what is transferred between the Navon orientation task and the face-processing tasks that follow.     

Perceptual simulations and linguistic representations have differential effects on speeded relatedness judgements and recognition memory

We examined the effect of spatial iconicity (a perceptual simulation of canonical locations of objects) and word-order frequency on language processing and episodic memory of orientation. Participants made speeded relatedness judgements to pairs of words presented in locations typical of their real-world arrangements (e.g., ceiling on top and floor on bottom). They then engaged in a surprise orientation recognition task for the word pairs. We replicated Louwerse's (2008) Louwerse, M. M. 2008. Embodied representations are encoded in language. Psychonomic Bulletin & Review, 15: 838–844. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar] finding that word-order frequency has a stronger effect on semantic relatedness judgements than does spatial iconicity. This is consistent with recent suggestions that linguistic representations have a stronger impact on immediate decisions about verbal materials than do perceptual simulations. In contrast, spatial iconicity enhanced episodic memory of orientation to a greater extent than word-order frequency did. This new finding indicates that perceptual simulations have an important role in episodic memory. Results are discussed with respect to theories of perceptual representation and linguistic processing.     

Why mix-ups don't happen in the nursery: Evidence for an experience-based interpretation of the other-age effect

Adults' face recognition abilities vary across face types, as evidenced by the other-race and other-species effects. Recent evidence shows that face age is another dimension affecting adults' performance in face recognition tasks, giving rise to an other-age effect (OAE). By comparing recognition performance for adult and newborn faces in a group of maternity-ward nurses and a control group of novice participants, the current study provides evidence for an experience-based interpretation of the OAE. Novice participants were better at recognizing adult than newborn faces and showed an inversion effect for adult faces. Nurses manifested an inversion cost of equal magnitude for both adult and newborn faces and a smaller OAE in comparison to the novices. The results indicate that experience acquired exclusively in adulthood is capable of modulating the OAE and suggest that the visual processes involved in face recognition are still plastic in adulthood, granted that extensive experience with multiple faces is acquired.     

Do the effects of subjective frequency and age of acquisition survive better word frequency norms?

Megastudies with processing efficiency measures for thousands of words allow researchers to assess the quality of the word features they are using. In this article, we analyse reading aloud and lexical decision reaction times and accuracy rates for 2,336 words to assess the influence of subjective frequency and age of acquisition on performance. Specifically, we compare newly presented word frequency measures with the existing frequency norms of Ku?era and Francis (1967) Ku?era, H. and Francis, W. 1967. Computational analysis of present-day American English, Providence, RI: Brown University Press.  [Google Scholar], HAL (Burgess & Livesay, 1998 Burgess, C. and Livesay, K. 1998. The effect of corpus size in predicting reaction time in a basic word recognition task: Moving on from Kucera and Francis. Behavior Research Methods, Instruments, & Computers, 30: 272–277. [Crossref] , [Google Scholar]), Brysbaert and New (2009) Brysbaert, M. and New, B. 2009. Moving beyond Kucera and Francis: A critical evaluation of current word frequency norms and the introduction of a new and improved word frequency measure for American English. Behavior Research Methods, 41: 977–990. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar], and Zeno, Ivens, Millard, and Duvvuri (1995) Zeno, S. M., Ivens, S. H., Millard, R. T. and Duvvuri, R. 1995. The educator's word frequency guide, Brewster, NY: Touchstone Applied Science.  [Google Scholar]. We show that the use of the Ku?era and Francis word frequency measure accounts for much less variance than the other word frequencies, which leaves more variance to be “explained” by familiarity ratings and age-of-acquisition ratings. We argue that subjective frequency ratings are no longer needed if researchers have good objective word frequency counts. The effect of age of acquisition remains significant and has an effect size that is of practical relevance, although it is substantially smaller than that of the first phoneme in naming and the objective word frequency in lexical decision. Thus, our results suggest that models of word processing need to utilize these recently developed frequency estimates during training or setting baseline activation levels in the lexicon.     

When underadditivity of factor effects in the Psychological Refractory Period paradigm implies a bottleneck: Evidence from psycholinguistics

The Psychological Refractory Period (PRP) paradigm is a dual-task procedure that can be used to examine the resource demands of specific cognitive processes. Inferences about the underlying processes are typically based on performance in the second of two speeded tasks. If the effect of a factor manipulated in Task 2 decreases as the stimulus onset asynchrony (SOA) between tasks decreases (underadditivity), the normative inference is that the effect of this factor occurs prior to a limited-capacity central processing mechanism. In contrast, if the effect of a factor is additive with SOA then the inference is that this indexes a process that either uses a limited-capacity central processing mechanism or occurs after some process that uses this mechanism. A heretofore unidentified exception to this logic arises when Task 2 involves two separate processes that operate in parallel, but compete. Interference with one process in Task 2 because of work on Task 1 will eliminate or reduce competition within Task 2 and is hence manifest as an underadditive interaction with decreasing SOA. This is illustrated here by reference to a PRP experiment in which the ubiquitous effect of spelling-to-sound regularity on reading aloud time is eliminated at a short SOA and by consideration of three converging lines of investigation in the PRP paradigm when Task 2 involves reading aloud.     

Repetition advantage and disadvantage in perceptual identification tasks

Repetitive presentation of a stimulus brings not only advantage but also disadvantage when performing perceptual identification tasks. In this study, the conflicting phenomena of the effect of repetition were examined using two Kana character sets (Hiragana and Katakana) as stimuli. Two identical or different stimuli were presented in rapid succession and participants were asked to identify and report them. The stimulus onset asynchrony (SOA) between the two stimuli was varied from 200 ms to 1200 ms, according to which the suitable temporal conditions for the two distinct effects of repetition were explored. The results indicated that two distinct effects of repetition occurred depending on the informational code shared by the two stimuli. An interference effect of repetition was observed with SOA values of up to 500 ms when the two stimuli were identical in terms of their visual pattern code (Hiragana), whereas a superior effect of repetition was observed with an SOA value of 200 ms when they were identical only in terms of their phonological code (Hiragana and Katakana). From these findings, the author proposes that when two identical stimuli are presented in rapid succession, inhibition and activation mechanisms may function at different levels of processing.