Search results for "Memory."
showing 10 items of 1949 documents
Is Written Language Production more Difficult than Oral Language Production? A Working Memory Approach
1994
Abstract Is written language production more difficult than oral language production? Probably, yes. But why? Several experiments were conducted in order to test the impact of low-level activities involved in writing on the performance of higher-level activities also involved in writing. Three assumptions were made: (1) the capacity of working-memory is limited, (2) every component of writing has a cognitive load, and (3) every increase in the load devoted to the activity of one component would lead to a decrease in the remaining resources available for the other components. These low-level activities are more resource-consuming in children than in adults because children have not yet autom…
Improvement of working memory performance by training is not transferable
2011
Working memory (WM) usually refers to a cognitive system devoted to the simultaneous maintenance and processing of information which plays a crucial role in high-level cognition. Recently, Barrouillet and collaborators showed the importance of controlling the time course of cognitive activities to assess WM capacities. Therefore, they developed a new paradigm to systematically explore the functioning of WM that involved simple but time-constrained activities as processing component. In comparison with traditional tasks, these computer-paced span tasks provide a more accurate evaluation of WM capacities and turned out to be the most predictive of complex cognitive achievements. The present s…
The cognitive neuropsychology of recollection
2013
The recognition of whether someone, something or somewhere has been experienced before rests on a decisionmaking process. In humanmemory, information is not reproduced as it would be in a computer, but is a reflective, conscious process. This is more so the case when encountering the same scene, environment or idea for a second time. When we recognize something as having been encountered before we arguably make a comparison between what is represented in the cognitive system and what is currently perceived. Consider that somebody uses the word ‘loquacious’, a word which you have only just encountered recently, and up until then, you did not know its meaning, or even existence. When encounte…
The effectiveness of multimedia programmes in children's vocabulary learning
2009
The present experiment investigated the effect of three different presentation modes in children's vocabulary learning with a self-guided multimedia programmes. Participants were 135 third and fourth grade children who read a short English language story presented by a computer programme. For 12 key (previously unknown) words in the story, children received verbal annotations (written translation), visual annotations (picture representing the word), or both. Recall of word translations was better for children who only received verbal annotations than for children who received simultaneously visual and verbal annotations or visual annotations only. Results support previous research about cog…
What animated illustrations conditions can improve technical document comprehension in young students? Format, signaling and control of the presentat…
2005
We study the comprehension of a multimedia technical document about gear functioning by young pupils. The research is focused on the effect of three factors on the construction of a mental model: illustration format (animated versus static) signaling cues (presence versus absence) learner-control of information delivery (three rhythms of presentation: speed, slow and self-controlled). The experimental procedure, conducted with 123 children, follows three phases: pre-test, individual passation of the lesson, comprehension test, delayed post-test. The goal of the pre-test is the evaluation of prior knowledge about gears, but also the control of spatial and verbal working memory aptitude and r…
Macrophage migration inhibitory factor is critically involved in basal and fluoxetine-stimulated adult hippocampal cell proliferation and in anxiety,…
2011
Intensive research is devoted to unravel the neurobiological mechanisms mediating adult hippocampal neurogenesis, its regulation by antidepressants, and its behavioral consequences. Macrophage migration inhibitory factor (MIF) is a pro-inflammatory cytokine that is expressed in the CNS, where its function is unknown. Here, we show, for the first time, the relevance of MIF expression for adult hippocampal neurogenesis. We identify MIF expression in neurogenic cells (in stem cells, cells undergoing proliferation, and in newly proliferated cells undergoing maturation) in the subgranular zone of the rodent dentate gyrus. A causal function for MIF in cell proliferation was shown using genetic (M…
The positive effect of music on source memory
2015
Several studies have investigated how to improve episodic memory performance by manipulating the factors that are crucial for successful encoding. There is an ongoing debate about whether a complex stimulus such as music can improve memory, and in particular memory for words, rather than interfere with correct encoding of information. Therefore, the present study aims to investigate whether verbal episodic memory can be improved by background context of instrumental music. Twenty young adults were asked to memorize different lists of words presented against a background of music, environmental sounds or silence. Their episodic memory performance was then tested in terms of item and source …
Subjective Experience of Episodic Memory and Metacognition: A Neurodevelopmental Approach
2013
Episodic retrieval is characterized by the subjective experience of remembering. This experience enables the co-ordination of memory retrieval processes and can be acted on metacognitively. In successful retrieval, the feeling of remembering may be accompanied by recall of important contextual information. On the other hand, when people fail (or struggle) to retrieve information, other feelings, thoughts and information may come to mind. In this review, we examine the subjective and metacognitive basis of episodic memory function from a neurodevelopmental perspective, looking at recollection paradigms (such as source memory, and the report of recollective experience) and metacognitive parad…
Places of ancient agrarian culture : the discovery of a grain pit
2020
The recovery of memory as well as the protection, preservation, conservation and enhancement of the cultural heritage of our territory – both material and immaterial – are the starting points for this multidisciplinary research, which aims to recount a history that has almost been forgotten. We refer to the tradition of agrarian culture, and to the ancient production, commercialization and conservation of wheat: a valuable asset of sustenance for the community that, in centuries past, played a fundamental role for the socio-economic development of our country, particularly for cities overlooking the Mediterranean basin. Several methods and places have been used to store wheat. This study fo…
Staggering Periodic Replenishments
1999
The paper deals with the problem of staggering periodic replenishment orders associated to different frequencies. The particular multi-item, instantaneous replenishment case with known demand is considered. The practical interest for such a problem is twofold: staggering orders allows both a reduction of the costs incurred in holding goods and an efficient use of space in warehouses. Some specific models allowing staggering are considered and, for them, theoretical results and properties are provided.