Search results for "Visual Perception"
showing 10 items of 387 documents
Evidential markers derived from visual perception in Spanish dialects : a contrastive study of por lo visto and se ve (que)
2019
Verbs of perception (PV) are known to frequently give rise to discursive uses. PVs are used, for example, as evidential markers through grammaticalization processes. This study focuses on two evidential markers of Spanish derived from the visual PVs ver ('to see'), namely, 'por lo visto' and 'se ve (que)'. Although the attention dedicated to these evidential markers in Spanish has increased considerably in recent years, contrastive studies have not taken into account the dialectal variation of this phenomenon. We aspire to take a first step in filling this gap by contrastively studying 'por lo visto' and 'se ve (que)' in different dialects of Spanish by means of a comprehensive, empirical s…
Using visual strategies to support verbal comprehension in an adolescent with Down syndrome
2011
International audience; It has been frequently reported that children with Down syndrome have deficits in verbal short-term memory while having relatively good performance in visual short-term memory tasks. Such verbal deficits have a detrimental effect on various high-level cognitive processes, most notably language comprehension. In this study, we report the case of an adolescent with Down syndrome whose verbal short-term memory and comprehension capacities are impaired. Noting that his visual memory remained relatively well preserved, we developed a remediation strategy based on his visual abilities to support his verbal memory deficit. This remediation led to significant improvements in…
Percepción visual y traducción audiovisual: la mirada dirigida
2012
En este trabajo, partimos de la premisa de que las destrezas perceptuales innatas necesarias para entender una obra audiovisual son idénticas a las de la percepción visual natural (Grodal 1999: 76). La percepción es una forma inconsciente y natural de interpretar nuestro entorno gracias a la experiencia previa y al aprendizaje. Sostenemos, en contra de la creencia profundamente arraigada en Occidente de que la imagen es universal y verdadera, que la percepción visual es un proceso cognitivo determinado por la experiencia previa, el ambiente, el contexto, los valores culturales y la motivación. En este trabajo vamos a estudiar la aplicación de las investigaciones cognitivas sobre percepción …
From visual perception to evidentiality: A functional empirical approach to se ve que in Spanish
2019
Abstract The Spanish sequence se ve (que) presents intricate functional polysemy, including constructionalization as an evidential. The present paper investigates its different formal-functional combinations and degrees of specialization as an evidential construction. The following questions were addressed: (1) How many different senses can be distinguished in the sequence se ve (que) and what are their respective frequencies? (2) How do these senses correlate with the morphosyntactic behavior of the sequence se ve (que)? (3) Which senses of se ve (que) are more closely related to each other, and how does the evidential construction relate to this polysemous network? The semantic and formal…
Cognitive predictors of single-digit and procedural calculation skills and their covariation with reading skill.
2006
Abstract This study examined the extent to which children’s cognitive abilities in kindergarten and their mothers’ education predict their single-digit and procedural calculation skills and the covariance of these with reading skill in Grade 4. In kindergarten, we assessed children’s (N = 178) basic number skills, linguistic skills, and visual attention. In Grade 4, we assessed their calculation and reading skills. Data on children’s cognitive ability at 5 years of age and their mothers’ level of education were also collected. The results showed that both of the core components of calculation, single-digit and procedural calculation, as well as their covariance with reading, were predicted …
Drosophila Acquires a Long-Lasting Body-Size Memory from Visual Feedback
2019
Summary Grasping an object or crossing a trench requires the integration of information on the operating distance of our limbs with precise distance estimation. The reach of our hands and step size of our legs are learned by the visual feedback we get during our actions. This implicit knowledge of our peripersonal space is first acquired during infancy but will be continuously updated throughout our whole life [ 1 ]. In contrast, body size of holometabolous insects does not change after metamorphosis; nevertheless, they do have to learn their body reaches at least once. The body size of Drosophila imagines can vary by about 15% depending on environmental factors like food quality and temper…
Frequency and Correlates of Subjective Memory Complaints in Parkinson’s Disease with and without Mild Cognitive Impairment: Data from the Parkinson’s…
2018
Subjective memory complaints (SMC) may represent the preclinical phase of mild cognitive impairment (MCI) due to Alzheimer's disease. Dementia/MCI have been described with a high prevalence in Parkinson's disease (PD), but whether SMC may predict the development of cognitive impairment has been barely explored. To evaluate the frequency and clinical correlates of isolated SMC (PD-SMC) or within the construct of MCI in subjects with PD, 147 PD patients from the PArkinson's disease COgnitive impairment Study (PACOS) were consecutively recruited for the study. This is a multicenter study involving two Movement Disorder Centers in south Italy. All subjects underwent comprehensive neuropsycholog…
Influence of reading skill and word length on fixation-related brain activity in school-aged children during natural reading
2019
Word length is one of the main determinants of eye movements during reading and has been shown to influence slow readers more strongly than typical readers. The influence of word length on reading in individuals with different reading skill levels has been shown in separate eye-tracking and electroencephalography studies. However, the influence of reading difficulty on cortical correlates of word length effect during natural reading is unknown. To investigate how reading skill is related to brain activity during natural reading, we performed an exploratory analysis on our data set from a previous study, where slow reading (N = 27) and typically reading (N = 65) 12-to-13.5-year-old children …
The development of analogy making in children: cognitive load and executive functions.
2010
The aim of the current study was to investigate the performance of 6-, 8-, and 14-year-olds on an analogy-making task involving analogies in which there are competing perceptual and relational matches. We hypothesized that the selection of the common relational structure requires the inhibition of other salient features, in particular, perceptual matches. Using an A:B::C:D paradigm, we showed that children’s performance in analogy-making tasks depends crucially on the nature of the distractors. Children chose more perceptual distractors having a common feature with C compared with A or B (Experiment 1). In addition, they were also influenced by unstructured random textures. When measuring r…
Age-related differences in a delayed pointing of a M�ller-Lyer illusion
2003
It has been suggested that movements to visible or remembered targets are differently sensitive to the Müller-Lyer (ML) illusion. Indeed, when the target is continuously visible, movements rely on the veridical object characteristics, whereas remembered movements are thought to reflect the perceived characteristics of the object. The aim of the present study was to determine how movements to visible or remembered targets are influenced by the ML illusion in children aged 7 to 11 years old. Participants were asked to make a perceptual judgment or to point a shaft extremity of the ML configurations (Closed, Control, and Open) in three visual conditions (Closed Loop, Open Loop-0-s delay, and 5…