Generic Tasks and Task Structures: History, Critique and New Directions

1993 ◽  
pp. 232-272 ◽  
Author(s):  
B. Chandrasekaran ◽  
Todd R. Johnson
2009 ◽  
Vol 31 (3) ◽  
pp. 319-340 ◽  
Author(s):  
Mark H. Zmudy ◽  
Matthew D. Curtner-Smith ◽  
Jeff Steffen

2009 ◽  
Vol 31 (3) ◽  
pp. 319-340 ◽  
Author(s):  
Mark H. Zmudy ◽  
Matthew D. Curtner-Smith ◽  
Jeff Steffen

2010 ◽  
Vol 11 (3) ◽  
pp. 130-158
Author(s):  
Carine Bastos da França ◽  
Paulo Renato Lourenço

Facing a constantly changing environment, nowadays' organizations are looking for innovative ways of organizing and managing work, in which workgroups represent a source of competitive advantage. In this context, group diversity has received increasingly attention by researchers. Jackson, May and Whitney (1995) define diversity in terms of characteristics classified as observable or underlying, as either task-related or relational-oriented. Although there are no conclusive results on this subject, researches relating diversity and the main types of conflict (affective and task-related) suggest that relational-oriented diversity (e.g., age, gender) influences the emergence of affective conflict, while task-oriented diversity (e.g., education, organizational tenure) contributes to task conflict (PELLED, 1996; JEHN; NORTHCRAFT; NEALE, 1999; PELLED; EISENHARDT; XIN, 1999). Following Jackson, May and Whitney (1995), we analyzed the effects of observable attributes of diversity (educational level, gender and age), on the emergence of intragroup conflict in 231 Portuguese workgroups, whose members perceived themselves as a group, and interacted with interdependence to achieve common goals. The Intragroup Conflict Assessment Scale (DIMAS; LOURENÇO; MIGUEZ, 2007) and a sociodemographic questionnaire were used. In contrast with the literature, but congruent with recent Portuguese researches (PASSOS, 2005; SILVESTRE, 2008), our results revealed no association between the studied diversity variables and intragroup conflict, indicating new directions in this field, and highlighting the importance of considering different contexts and variables in diversity's studies.


Author(s):  
Stephen Balakirsky ◽  
Craig Schlenoff ◽  
Sandro Rama Fiorini ◽  
Signe Redfield ◽  
Marcos Barreto ◽  
...  

Ontologies serve robotics in many ways, particularly in describing and driving autonomous functions. These functions are built around robot tasks. In this paper, we introduce the IEEE Robot Task Representation Study Group, including its work plan, initial development efforts, and proposed use cases. This effort aims to develop a standard that provides a comprehensive ontology encompassing robot task structures and reasoning across robotic domains, addressing both the relationships between tasks and platforms and the relationships between tasks and users. Its goal is to develop a knowledge representation that addresses task structure, with decomposition into subclasses, categories, and/or relations. It includes attributes, both common across tasks and specific to particular tasks and task types.


2019 ◽  
Vol 42 ◽  
Author(s):  
Penny Van Bergen ◽  
John Sutton

Abstract Sociocultural developmental psychology can drive new directions in gadgetry science. We use autobiographical memory, a compound capacity incorporating episodic memory, as a case study. Autobiographical memory emerges late in development, supported by interactions with parents. Intervention research highlights the causal influence of these interactions, whereas cross-cultural research demonstrates culturally determined diversity. Different patterns of inheritance are discussed.


Author(s):  
Margreet Vogelzang ◽  
Christiane M. Thiel ◽  
Stephanie Rosemann ◽  
Jochem W. Rieger ◽  
Esther Ruigendijk

Purpose Adults with mild-to-moderate age-related hearing loss typically exhibit issues with speech understanding, but their processing of syntactically complex sentences is not well understood. We test the hypothesis that listeners with hearing loss' difficulties with comprehension and processing of syntactically complex sentences are due to the processing of degraded input interfering with the successful processing of complex sentences. Method We performed a neuroimaging study with a sentence comprehension task, varying sentence complexity (through subject–object order and verb–arguments order) and cognitive demands (presence or absence of a secondary task) within subjects. Groups of older subjects with hearing loss ( n = 20) and age-matched normal-hearing controls ( n = 20) were tested. Results The comprehension data show effects of syntactic complexity and hearing ability, with normal-hearing controls outperforming listeners with hearing loss, seemingly more so on syntactically complex sentences. The secondary task did not influence off-line comprehension. The imaging data show effects of group, sentence complexity, and task, with listeners with hearing loss showing decreased activation in typical speech processing areas, such as the inferior frontal gyrus and superior temporal gyrus. No interactions between group, sentence complexity, and task were found in the neuroimaging data. Conclusions The results suggest that listeners with hearing loss process speech differently from their normal-hearing peers, possibly due to the increased demands of processing degraded auditory input. Increased cognitive demands by means of a secondary visual shape processing task influence neural sentence processing, but no evidence was found that it does so in a different way for listeners with hearing loss and normal-hearing listeners.


2019 ◽  
Vol 62 (12) ◽  
pp. 4417-4432 ◽  
Author(s):  
Carola de Beer ◽  
Jan P. de Ruiter ◽  
Martina Hielscher-Fastabend ◽  
Katharina Hogrefe

Purpose People with aphasia (PWA) use different kinds of gesture spontaneously when they communicate. Although there is evidence that the nature of the communicative task influences the linguistic performance of PWA, so far little is known about the influence of the communicative task on the production of gestures by PWA. We aimed to investigate the influence of varying communicative constraints on the production of gesture and spoken expression by PWA in comparison to persons without language impairment. Method Twenty-six PWA with varying aphasia severities and 26 control participants (CP) without language impairment participated in the study. Spoken expression and gesture production were investigated in 2 different tasks: (a) spontaneous conversation about topics of daily living and (b) a cartoon narration task, that is, retellings of short cartoon clips. The frequencies of words and gestures as well as of different gesture types produced by the participants were analyzed and tested for potential effects of group and task. Results Main results for task effects revealed that PWA and CP used more iconic gestures and pantomimes in the cartoon narration task than in spontaneous conversation. Metaphoric gestures, deictic gestures, number gestures, and emblems were more frequently used in spontaneous conversation than in cartoon narrations by both participant groups. Group effects show that, in both tasks, PWA's gesture-to-word ratios were higher than those for the CP. Furthermore, PWA produced more interactive gestures than the CP in both tasks, as well as more number gestures and pantomimes in spontaneous conversation. Conclusions The current results suggest that PWA use gestures to compensate for their verbal limitations under varying communicative constraints. The properties of the communicative task influence the use of different gesture types in people with and without aphasia. Thus, the influence of communicative constraints needs to be considered when assessing PWA's multimodal communicative abilities.


Addiction ◽  
1997 ◽  
Vol 92 (11) ◽  
pp. 1411-1422 ◽  
Author(s):  
Anthony P. Shakeshaft ◽  
Jenny A. Bowman ◽  
Rob W. Sanson-Fisher
Keyword(s):  

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