Search results for "Attention."
showing 10 items of 915 documents
Disrupted Spatial Organization of Cued Exogenous Attention Persists Into Adulthood in Developmental Dyslexia
2021
Purpose: Abnormal exogenous attention orienting and diffused spatial distribution of attention have been associated with reading impairment in children with developmental dyslexia. However, studies in adults have failed to replicate such relationships. The goal of the present study was to address this issue by assessing exogenous visual attention and its peripheral spatial distribution in adults with developmental dyslexia.Methods: We measured response times, accuracy and eye movements of 18 dyslexics and 19 typical readers in a cued discrimination paradigm, in which stimuli were presented at different peripheral eccentricities.Results: Results showed that adults with developmental dyslexia…
Neuroaesthetic exploration on the cognitive processing behind repeating graphics
2022
Repeating graphics are common research objects in modern design education. However, we do not exactly know the attentional processes underlying graphic artifacts consisting of repeating rhythms. In this experiment, the event-related potential, a neuroscientific measure, was used to study the neural correlates of repeating graphics within graded orderliness. We simulated the competitive identification process of people recognizing artifacts with graded repeating rhythms from a scattered natural environment with the oddball paradigm. In the earlier attentional processing related to the P2 component around the Fz electrode within the 150−250 ms range, a middle-grade repeating rhythm (Target 1)…
Contributions à l'analyse et à l'interprétation des images : Extraction et représentation de caractéristiques
2016
Ce mémoire, rédigé en vue de l'obtention de l'Habilitation à Diriger des Recherches (HDR), offre un aperçu des travaux de recherche et d’encadrement que j’ai pu mener depuis l'obtention de mon doctorat. Il montre la diversité des champs d’application et de recherche (en vision et en imagerie médicale) que j’ai pu couvrir , ainsi que mon implication dans l’encadrement doctoral.Mes activités de recherche se divisent en deux grandes parties. D'une part, l'analyse de scènes dynamiques, à savoir la détection de regions d'intérêt dans des séquences d'images, pour réduire la taile des données à traiter, et la détection et le suivi d'objets mobiles à l'aide de caméras de diverses natures (perspecti…
Systematic review and exploratory meta-analysis of the efficacy, safety, and biological effects of psychostimulants and atomoxetine in patients with …
2019
ObjectiveOur aim was to summarize the efficacy and safety of atomoxetine, amphetamines, and methylphenidate in schizophrenia.MethodsWe undertook a systematic review, searching PubMed/Scopus/Clinicaltrials.gov for double-blind, randomized, placebo-controlled studies of psychostimulants or atomoxetine in schizophrenia published up to 1 January 2017. A meta-analysis of outcomes reported in two or more studies is presented.ResultsWe included 22 studies investigating therapeutic effects of stimulants (k=14) or measuring symptomatic worsening/relapse prediction after stimulant challenge (k=6). Six studies of these two groups plus one additional study investigated biological effects of psychostimu…
Visual saliency by keypoints distribution analysis
2011
In this paper we introduce a new method for Visual Saliency detection. The goal of our method is to emphasize regions that show rare visual aspects in comparison with those showing frequent ones. We propose a bottom up approach that performs a new technique based on low level image features (texture) analysis. More precisely, we use SIFT Density Maps (SDM), to study the distribution of keypoints into the image with different scales of observation, and its relationship with real fixation points. The hypothesis is that the image regions that show a larger distance from the mode (most frequent value) of the keypoints distribution over all the image are the same that better capture our visual a…
Propiedades psicométricas de la versión española de la escala Mindful Attention Awareness Scale (MAAS)
2012
La Mindful Attention Awareness Scale (MAAS) es una escala sencilla y de rápida administración que evalúa, de forma global, la capacidad disposicional de un individuo de estar atento y consciente de la experiencia del momento presente en la vida cotidiana. La escala es un autoinfome unifactorial de 15 ítems con visión del constructo mindfulness centrada en la variable atención/consciencia. El instrumento puede ser utilizado en sujetos con o sin experiencia en meditación y es ampliamente utilizado en investigación. Con el objetivo de establecer las propiedades psicométricas de la MAAS, se administró a un total de 385 sujetos, 201 pertenecientes a una muestra clínica y 184 a una muestra contro…
Uzmanības deficīta un hiperaktivitātes sindroma ietekme uz skolas uzvedību un sociālajām prasmēm skolas vecuma bērniem
2019
Mūsdienu klasēs, daudzi pedagogi saskaras ar „ārpus kontroles bērniem”. Bērniem, kuriem ir uzmanības deficīts vai hiperaktivitātes sindroms (turpmāk tekstā UDHS), ir neiroloģiski traucējumi, kas ietekmē viņu spēju kontrolēt savu uzvedību un pievērst uzmanību uzdevumiem. Bērni ar UDHS rada īpašu iedzīvotāju grupu ar dažādām vajadzībām izglītības vidē. Izpētītajā pētījumā, tika pievērsta uzmanība uzmanības deficīta un hiperaktivitātes traucējumiem. Pētījuma mērķis bija izpētīt un analizēt dažādas pieejas UDHS, kas saistītas ar problēmām ar vidusskolēniem. Literatūras pārskatā aplūkotās tēmas, ietver dažādas teorijas un kopīgas intervences, ņemot vērā UDHS. Šajā darbā, tika izmantota kvalitatī…
Aristóteles entre doxografía y biografía: sobre Diógenes Laercio V 31
2019
Se pretende llamar la atención sobre un par de frases que aparecen justo hacia la mitad de la controvertida doxografía de Aristóteles que se puede leer en las Vidas y doctrinas de los filósofos más ilustres de Diógenes Laercio V 31, y que desde luego no corresponden a ningún sistema doxográfico conocido. Como sucede no pocas veces en la obra laerciana, la misma apreciación sobre si el filósofo debe o no enamorarse y contraer matrimonio se repite idéntica en otras doxografías completamente distintas: la cirenaica (DL II 91), la estoica (DL VII 129) y la epicúrea (DL X 118). Cabe plantearse, pues, el origen de este interés, en varias doxografías, por la vida sentimental, podríamos decir, de l…
Bodily obsessions : intrusiveness of organs in somatic obsessive–compulsive disorder
2022
AbstractIn this paper, I will provide a phenomenological analysis of somatic obsessions at times present in obsessive–compulsive disorder. I will compare two different types of bodily obsessions, which have a different neurological-physiological underpinning: anguishing awareness of one’s own heartbeat and of one’s own breathing. In addition, I will contrast these two with how one experiences one’s own liver. I will use the concepts "tactility obsessions” and "motility obsessions”, which I have coined for the purpose of this comparison. In other words, these are obsessions concerning the felt sense of one’s autonomous organs and obsessions concerning one’s ability to voluntarily move. Ultim…
The Link Between Standardization and Economic Growth
2021
We analyze the link between standardization and economic growth by systematically reviewing leading economics journals, leading economic growth researchers’ articles, and economic growth-related books. We make the following observations: 1) No article has analyzed the link between standardization and economic growth in top5 economics journals between 1996 and 2018. 2) A representative sample of the leading researchers of economic growth has allocated little attention to the link between standardization and economic growth. 3) Typically, economic growth textbooks do not contain “standards” or “standardization” in their word indexes. These findings suggest that the economic growth theory has …