Search results for "ECoG"
showing 10 items of 3774 documents
Does Holistic Processing Require a Large Brain? Insights From Honeybees and Wasps in Fine Visual Recognition Tasks
2018
The expertise of humans for recognizing faces is largely based on holistic processing mechanism, a sophisticated cognitive process that develops with visual experience. The various visual features of a face are thus glued together and treated by the brain as a unique stimulus, facilitating robust recognition. Holistic processing is known to facilitate fine discrimination of highly similar visual stimuli, and involves specialized brain areas in humans and other primates. Although holistic processing is most typically employed with face stimuli, subjects can also learn to apply similar image analysis mechanisms when gaining expertise in discriminating novel visual objects, like becoming exper…
Special Issue on Computational Intelligence and Nature-Inspired Algorithms for Real-World Data Analytics and Pattern Recognition
2018
This special issue of Algorithms is devoted to the study of Computational Intelligence and Nature-Inspired Algorithms for Real-World Data Analytics and Pattern Recognition. The special issue considered both theoretical contributions able to advance the state-of-the-art in this field and practical applications that describe novel approaches for solving real-world problems.
Multispectral analysis of color vision deficiency tests
2011
Color deficiency tests are usually produced by means of polygraphy technologies and help to diagnose the type and severity of the color deficiencies. Due to different factors, as lighting conditions or age of the test, standard characteristics of these tests fail, thus not allowing diagnosing unambiguously the degree of different color deficiency. Multispectral camera was used to acquire the spectral images of the Ishihara and Rabkin pseudoisochromatic plates in the visible spectrum. Spectral data was converted to cone signals, and successive mathematics applied to provide a simple simulation of the test performance. Colorimetric data of the each pixel of the test image can be calculated an…
A study of the relationship between regulatory systems, assessment e locomotion, and online learning groups
2011
The present paper examines the relationship between assessment, locomotion and attitudes and learning outcomes in a Computer-supported collaborative learning (CSCL) framework. Results showed that regulatory mode predicted exam marks, numbers of tasks completed, messages sent and attitudes towards the course and the ingroup. The theoretical implications and some reflections about CSCL and Regulatory-mode Theory (RMT) are presented.
Do Diacritical Marks Play a Role at the Early Stages of Word Recognition in Arabic?
2016
Published: 22 August 2016 A crucial question in the domain of visual word recognition is whether letter similarity plays a role in the early stages of visual word processing. Here we focused on Arabic because in this language there are various groups of letters that share the same basic shape and only differ in the number/location of diacritical points. We conducted a masked priming lexical decision experiment in which a target word was preceded by: (i) an identity prime; (ii) a prime in which the critical letter was replaced by a letter with the same shape that differed in the number of diacritics (e.g., ); or (iii) a prime in which the critical letter was replaced by a letter with differe…
The Omission of Accent Marks Does Not Hinder Word Recognition: Evidence From Spanish
2021
Recent research has found that the omission of accent marks in Spanish does not produce slower word identification times in go/no-go lexical decision and semantic categorization tasks [e.g., cárcel (prison) = carcel], thus suggesting that vowels like á and a are represented by the same orthographic units during word recognition and reading. However, there is a discrepant finding with the yes/no lexical decision task, where the words with the omitted accent mark produced longer response times than the words with the accent mark. In Experiment 1, we examined this discrepant finding by running a yes/no lexical decision experiment comparing the effects for words and non-words. Results showed sl…
On the Dissociation of Word/Nonword Repetition Effects in Lexical Decision: An Evidence Accumulation Account
2016
A number of models of visual-word recognition assume that the repetition of an item in a lexical decision experiment increases that item's familiarity/wordness. This would produce not only a facilitative repetition effect for words, but also an inhibitory effect for nonwords (i.e., more familiarity/wordness makes the negative decision slower). We conducted a two-block lexical decision experiment to examine word/nonword repetition effects in the framework of a leading “familiarity/wordness” model of the lexical decision task, namely, the diffusion model (Ratcliff et al., 2004). Results showed that while repeated words were responded to faster than the unrepeated words, repeated nonwords were…
Philoscphies of the gift: Uses and abuses of contemporary ethics donation
2013
El objetivo de este artículo es analizar el concepto de donación en la ética contemporánea. Este análisis se realiza en tres momentos: el primero se sitúa en la introducción y muestra que es un concepto importante en el que convergen la fenomenología, el personalismo y la hermenéutica. Esta convergencia no solo supone un uso frecuente del concepto sino un abuso del mismo cuando se construye de espalda a las mediaciones objetivas o institucionales que lo condicionan. El segundo presenta una antropología del don y muestra su relación con los objetos, la reciprocidad, la deuda y la libertad. En el tercer momento se describe la filosofía de la donación de Paul Ricoeur, donde se comprueba un uso…
ASV kā nozīmīgais cits Krievijas lomas identitātes veidošanā: 2007.-2017. gads
2019
Maģistra darba tēma ir “ASV kā nozīmīgais cits Krievijas lomas identitātes veidošanā: 2007.-2017. gads”. Darba mērķis ir noskaidrot, kāds laika periodā no 2007. gada līdz 2017. gadam ir bijis Krievijas diskurss attiecībā uz ASV, proti, vai Krievijas ieskatā ASV to atzīst vai neatzīst kā lielvaru, kā arī to, kādas tam ir attiecīgās sekas vienā vai otrā gadījumā. Darba teorētisko bāzi veido konstruktīvisma pieeja, konkrētāk skatījums uz identitātēm. Tāpat darbā izmantota kritiskā diskursa analīze. Darba rezultāti liecina par to, ka ASV neatzīstot Krieviju kā lielvaru, tās retorika kļūst revizionistiska.
It's Sad but I Like It The Neural Dissociation Between Musical Emotions and Liking in Experts and Laypersons
2016
Emotion-related areas of the brain, such as the medial frontal cortices, amygdala, and striatum, are activated during listening to sad or happy music as well as during listening to pleasurable music. Indeed, in music, like in other arts, sad and happy emotions might co-exist and be distinct from emotions of pleasure or enjoyment. Here we aimed at discerning the neural correlates of sadness or happiness in music as opposed those related to musical enjoyment. We further investigated whether musical expertise modulates the neural activity during affective listening of music. To these aims, 13 musicians and 16 non-musicians brought to the lab their most liked and disliked musical pieces with a …