Effacements of Form

The theme of this essay is expressed in a line from the Dao De Jing： ＂The great image has no form.＂ The essay shows how this effacement, annulment, or withdrawal of form is realized in ancient Chinese painting （Song and Ming Dynasties） and in the conception of the natural elements to which much of this painting is related. Certain resonances with this effacement of form are identified in the way that recent Continental thought focuses on an effacement of form as it was determined in ancient Greek philosophy.     

A Note on Formality and Logical Consequence

Logic is formal in the sense that all arguments of the same form as logically valid arguments are also logically valid and hence truth-preserving. However, it is not known whether all arguments that are valid in the usual model-theoretic sense are truth-preserving. Tarski claimed that it could be proved that all arguments that are valid (in the sense of validity he contemplated in his 1936 paper on logical consequence) are truth-preserving. But he did not offer the proof. The question arises whether the usual model-theoretic sense of validity and Tarski's 1936 sense are the same. I argue in this paper that they probably are not, and that the proof Tarski had in mind, although unusable to prove that model-theoretically valid arguments are truth-preserving, can be used to prove that arguments valid in Tarski's 1936 sense are truth-preserving.     

特征觉察器与康德的先验形式

康德主张对象必须符合主体的认识条件,即与特定的形式相符合,这与认知心理学上的特征觉察器相一致。特征觉察器是对特定的刺激物作出特定反应的高级神经元组织。康德的先验形式的问题可以用特征觉察器和特征捆绑等神经组织和神经过程来解释。特征觉察器可为审美先验形式提供生理心理基础,也可以使康德美学的主客之争得到相对缓解。     

Global shape integration and illusory form perception in the absence of awareness

Previous research on perceptual organization operations still provides contradictory evidence on whether the integration of sparse local elements into coherently unified shapes and the construction of the illusory form are accomplished without the need of awareness. In the present study, three experiments were conducted in which participants were presented with masked (Experiment 1, SOA = 27 ms; Experiment 2; SOA = 53 ms) and unmasked (Experiment 3) primes consisting of geometric shapes (a square or a diamond) that could be congruent or incongruent with subsequent probe stimuli (square vs. diamond). Furthermore, the primes were divided into: a grouping condition (where local elements may group together into global shapes), an illusory condition (where the arrangement of local elements produced illusory shapes) and a hybrid condition (where both operations were presented simultaneously). While no priming effects were found for the shortest SOA (27 ms), both grouping and illusory primes produced significant priming effects in the longer SOA (53 ms). On the other hand, results in Experiment 3 (unmasked) showed strong priming effects for the grouping of the inducers in both the grouping and the hybrid conditions, and also a significant but weaker priming effect for the illusory condition. Overall, our results support the possibility of the integration of local visual features into a global shape in the absence of awareness and, likewise, they suggest an early –subliminal– construction of the illusory shape, implying that feedback projections from higher to lower visual areas are not crucial in the construction of the illusory form.     

Play enhances visual form perception in infancy–an active training study

Motor experiences and active exploration during early childhood may affect individual differences in a wide range of perceptual and cognitive abilities. In the current study, we suggest that active exploration of objects facilitates the ability to process object forms and magnitudes, which in turn impacts the development of numerosity perception. We tested our hypothesis by conducting a preregistered active exploration intervention with 59 8‐month‐old infants. The minimal intervention consisted of actively playing with and exploring blocks once a day for 8 weeks. In order to control for possible training effects on attention, we used book reading as a control condition. Pre‐ and post‐test assessments using eye‐tracking showed that block play improved visual form perception, where infants became better at detecting a deviant shape. Furthermore, using three control tasks, we showed that the intervention specifically improved infants' ability to process visual forms and the effect could not be explained by a domain general improvement in attention or visual perception. We found that the intervention did not improve numerosity perception and suggest that because of the sequential nature of our hypothesis, a longer time frame might be needed to see improvements in this ability. Our findings indicate that if infants are given more opportunities for play and exploration, it will have positive effects on their visual form perception, which in turn could help their understanding of geometrical concepts.     

D’un restaurant traditionnel à la mise en œuvre d’un restaurant « libéré » : impacts sur les métiers et le collectif de travail

The restaurant sector questions through the tensions and difficulties it encounters in order to retain employees. In order to cope with this, some managers are mobilizing managerial innovation. This action research exposes the effects on the trades and the work group of a reorganization of a traditional restaurant into a “freedom-form” company. Based on co-construction between researchers, employees and owners, and the use of qualitative methods (interviews, observations), the research presents the levers for more innovation and “happiness at work”. The study shows that the predispositions of the company and the attachment of employees to it were the essential motivating engine for imagining a new work organization.     

刑释人员人身危险性的测评研究

我们对上海市1994年至1999年所释放的全部约1万5千名上海籍刑释人员进行了详细调查，从中筛选出与重新犯罪有显著相关关系的因素编制成《刑释人员个体人身危险性测评量表》，用多元回归分析方法预测刑释人员在获释后2年内的重新犯罪情况，经检验，其准确率为92％。     

Neuropsychological dissociations between motion and form perception suggest functional organization in extrastriate cortical regions in the human brain

In this review of neuropsychological case studies, a number of dissociations are shown between different visual abilities including low-level motion perception, static form perception, form-from-motion perception and biological motion perception. These dissociations reveal counter-intuitive results. Specifically, higher level form-from-motion perception can persist despite deficits in low-level motion perception and static form perception. To account for these dissociations, we present a model of functional organization and identify future directions for investigations of higher order form-from-motion perception.     

图形同一性对视觉似动的影响

该研究以单字母为刺激材料考察了图形同一性对视觉似动的影响。按照图形同一性、字母顺序及图形位移方向的不同,字母图形分成４类。另外还比较了聚焦和不聚焦条件下的实验结果。实验中要求被试对字母作左向、右向或来回运动的判断。结果表明似动现象不仅受到刺激间的空间关系的影响,而且也受到刺激间的图形同一性的影响。     

The approximation of two-mode proximity matrices by sums of order-constrained matrices

A least-squares strategy is proposed for representing a two-mode proximity matrix as an approximate sum of a small number of matrices that satisfy certain simple order constraints on their entries. The primary class of constraints considered define Q-forms (or anti-Q-forms) for a two-mode matrix, where after suitable and separate row and column reorderings, the entries within each row and within each column are nondecreasing (or nonincreasing) to a maximum (or minimum) and thereafter nonincreasing (or nondecreasing). Several other types of order constraints are also mentioned to show how alternative structures can be considered using the same computational strategy.