Late development of metric part-relational processing in object recognition

Four experiments with unfamiliar objects examined the remarkably late consolidation of part-relational relative to part-based object recognition (Jüttner, Wakui, Petters, Kaur, & Davidoff, 2013). Our results indicate a particularly protracted developmental trajectory for the processing of metric part relations. Schoolchildren aged 7 to 14 years and adults were tested in 3-Alternative-Forced-Choice tasks to judge the correct appearance of upright and inverted newly learned multipart objects that had been manipulated in terms of individual parts or part relations. Experiment 1 showed that even the youngest tested children were close to adult levels of performance for recognizing categorical changes of individual parts and relative part position. By contrast, Experiment 2 demonstrated that performance for detecting metric changes of relative part position was distinctly reduced in young children compared with recognizing metric changes of individual parts, and did not approach the latter until 11 to 12 years. A similar developmental dissociation was observed in Experiment 3, which contrasted the detection of metric relative-size changes and metric part changes. Experiment 4 showed that manipulations of metric size that were perceived as part (rather than part-relational) changes eliminated this dissociation. Implications for theories of object recognition and similarities to the development of face perception are discussed. © 2014 American Psychological Association.

How different are the visual representations used for object recognition in middle childhood and adulthood?

Recent experimental studies have shown that development towards adult performance levels in configural processing in object recognition is delayed through middle childhood. Whilst partchanges to animal and artefact stimuli are processed with similar to adult levels of accuracy from 7 years of age, relative size changes to stimuli result in a significant decrease in relative performance for participants aged between 7 and 10. Two sets of computational experiments were run using the JIM3 artificial neural network with adult and 'immature' versions to simulate these results. One set progressively decreased the number of neurons involved in the representation of view-independent metric relations within multi-geon objects. A second set of computational experiments involved decreasing the number of neurons that represent view-dependent (nonrelational) object attributes in JIM3's Surface Map. The simulation results which show the best qualitative match to empirical data occurred when artificial neurons representing metric-precision relations were entirely eliminated. These results therefore provide further evidence for the late development of relational processing in object recognition and suggest that children in middle childhood may recognise objects without forming structural description representations.

Developmental commonalities between object and face recognition in adolescence

In the visual perception literature, the recognition of faces has often been contrasted with that of non-face objects, in terms of differences with regard to the role of parts, part relations and holistic processing. However, recent evidence from developmental studies has begun to blur this sharp distinction. We review evidence for a protracted development of object recognition that is reminiscent of the well-documented slow maturation observed for faces. The prolonged development manifests itself in a retarded processing of metric part relations as opposed to that of individual parts and offers surprising parallels to developmental accounts of face recognition, even though the interpretation of the data is less clear with regard to holistic processing. We conclude that such results might indicate functional commonalities between the mechanisms underlying the recognition of faces and non-face objects, which are modulated by different task requirements in the two stimulus domains.

Race Relations & Politics in Venezuela during Punto Fijo (1958 – 1998)

In 1998, Hugo Chávez Frías’ presidential candidacy brought race to national discussion in Venezuela for first time since 1945. For long, the country’s politics had abided by the myth of racial harmony and racial democracy. This approach pointed to institutional separation in the United States and Africa as examples of true racism. Latin America was largely void of such atrocities. Nonetheless, Chávez claimed the present political parties (Acción Democrática, Copei and Unión Republicana Democrática) disenfranchised the common, colored Venezuelan. He continued to assert the opposition’s racism during his presidency. And his political fanbase agrees. A variety of scholars have studied the break from Punto Fijo politics to the Bolivarian Revolution. Yet, few have linked the obvious class struggle to race. Here, I seek to explain how racial identity has shaped class identity in Venezuela by closely examining the Punto Fijo era (1958-1998). The essay begins with an overview of historical race relations, moving to the period in focus. Then, I examine systematic and institutional exclusion under Punto Fijo politics. The object is to understand the merit of Chávez’s racial claims since 1998. Hence, the study also sees democracy in action and the consequences of racial exclusion. The study will be accomplished through secondary research, considering the limitations brought by working abroad. In the end, this study serves as first step in analyzing the fall of what was once considered Latin America’s most durable democracy.

Race Relations & Politics in Venezuela during Punto Fijo (1958 – 1998)

In 1998, Hugo Chávez Frías’ presidential candidacy brought race to national discussion in Venezuela for first time since 1945. For long, the country’s politics had abided by the myth of racial harmony and racial democracy. This approach pointed to institutional separation in the United States and Africa as examples of true racism. Latin America was largely void of such atrocities. Nonetheless, Chávez claimed the present political parties (Acción Democrática, Copei and Unión Republicana Democrática) disenfranchised the common, colored Venezuelan. He continued to assert the opposition’s racism during his presidency. And his political fanbase agrees. A variety of scholars have studied the break from Punto Fijo politics to the Bolivarian Revolution. Yet, few have linked the obvious class struggle to race. Here, I seek to explain how racial identity has shaped class identity in Venezuela by closely examining the Punto Fijo era (1958-1998). The essay begins with an overview of historical race relations, moving to the period in focus. Then, I examine systematic and institutional exclusion under Punto Fijo politics. The object is to understand the merit of Chávez’s racial claims since 1998. Hence, the study also sees democracy in action and the consequences of racial exclusion. The study will be accomplished through secondary research, considering the limitations brought by working abroad. In the end, this study serves as first step in analyzing the fall of what was once considered Latin America’s most durable democracy.

Object-Oriented Modeling Simulation and Control of Activated Sludge Process

Object-oriented modeling is spreading in current simulation of wastewater treatments plants through the use of the individual components of the process and its relations to define the underlying dynamic equations. In this paper, we describe the use of the free-software OpenModelica simulation environment for the object-oriented modeling of an activated sludge process under feedback control. The performance of the controlled system was analyzed both under normal conditions and in the presence of disturbances. The object-oriented described approach represents a valuable tool in teaching provides a practical insight in wastewater process control field.

Probability and Common-Sense: Tandem Towards Robust Robotic Object Recognition in Ambient Assisted Living

The suitable operation of mobile robots when providing Ambient Assisted Living (AAL) services calls for robust object recognition capabilities. Probabilistic Graphical Models (PGMs) have become the de-facto choice in recognition systems aiming to e ciently exploit contextual relations among objects, also dealing with the uncertainty inherent to the robot workspace. However, these models can perform in an inco herent way when operating in a long-term fashion out of the laboratory, e.g. while recognizing objects in peculiar con gurations or belonging to new types. In this work we propose a recognition system that resorts to PGMs and common-sense knowledge, represented in the form of an ontology, to detect those inconsistencies and learn from them. The utilization of the ontology carries additional advantages, e.g. the possibility to verbalize the robot's knowledge. A primary demonstration of the system capabilities has been carried out with very promising results.

Corpo-sujeito Kadiweu : jogo e esporte

Universidade Estadual de Campinas . Faculdade de Educação Física

As relações de gênero em uma escola de futebol : quando o jogo é possível? = Genders relations at a football school : when the game happen?

Universidade Estadual de Campinas . Faculdade de Educação Física

Hegemonia e contra-hegemonia na construção de políticas de esporte e lazer : a experiência do Consórcio Brasília = Hegemony and counter-hegemony in the process of sport and leisure policy-making : the experience of the Consortium Brasilia

Universidade Estadual de Campinas . Faculdade de Educação Física

A pratica do basquetebol feminino no estado de São Paulo : conhecendo e analisando seu contexto

Universidade Estadual de Campinas . Faculdade de Educação Física

Educação fisica, saude coletiva e a luta do MST : reconstruindo relações a partir das violencias

Universidade Estadual de Campinas . Faculdade de Educação Física

Os donos das pistas : uma efigie sociologica do esporte federativo brasileiro

Universidade Estadual de Campinas . Faculdade de Educação Física

A corporeidade do cego : novos olhares

Universidade Estadual de Campinas. Faculdade de Educação Fisica

Ônibus 174 - imagimagens da humilhação social

Este artigo procura debater a psicologia social no cinema através de um conceito específico: a humilhação social como problema político. Para tanto foi tomado como objeto de análise o filme Ônibus 174, documentário realizado pelo cineasta José Padilha em 2002. Os comentários elaborados aqui visam compreender as estratégias narrativas utilizadas pelo diretor, que incluem aspectos estéticos e a participação do público, que transformam sua obra em um objeto de estudo da humilhação social que ocorre no âmbito da esfera pública, onde a ação define as relações sociais entre os indivíduos.