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Cognitive Processing

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https://www.readbyqxmd.com/read/28905181/attenuated-audiovisual-integration-in-middle-aged-adults-in-a-discrimination-task
#1
Weiping Yang, Yanna Ren
Numerous studies have focused on the diversity of audiovisual integration between younger and older adults. However, consecutive trends in audiovisual integration throughout life are still unclear. In the present study, to clarify audiovisual integration characteristics in middle-aged adults, we instructed younger and middle-aged adults to conduct an auditory/visual stimuli discrimination experiment. Randomized streams of unimodal auditory (A), unimodal visual (V) or audiovisual stimuli were presented on the left or right hemispace of the central fixation point, and subjects were instructed to respond to the target stimuli rapidly and accurately...
September 13, 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28871460/opposing-effects-of-memory-driven-and-stimulus-driven-attention-on-distractor-perception
#2
Suk Won Han
It is well known that a match between working memory contents and a visual stimulus creates attentional bias toward the memory-matching stimulus. The present study investigated whether this memory-driven attentional bias exerts similar effects with conventional, spatial attention driven by a cue stimulus. Specifically, we examined how the effect of a distracting, task-irrelevant stimulus is modulated when attention was oriented toward the distractor in memory- and stimulus-driven manners. The results showed that significant interference by a distractor decreased when attention was allocated to the distractor in a memory-driven manner, whereas the distracter captured attention in a stimulus-driven manner exerted increased interference...
September 4, 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28871445/lateralized-pointing-does-not-cause-a-cognitive-bias
#3
Ineke J M van der Ham, Jantina Brummelman, Marie Elise Aerts, Alyanne M de Haan, H Chris Dijkerman
Lateralized pointing has been shown to cause not only a shift in visuo-motor midline, but also a shift in non-lateralized spatial attention. Non-lateralized cognitive consequences of lateralized pointing have been reported for local and global visuospatial processing. Here, we evaluate these findings and examine this effect for categorical and coordinate spatial relation processing, for which the attentional processes are thought to be highly similar to local and global visuospatial processing, respectively...
September 4, 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28852890/body-representation-in-patients-after-vascular-brain-injuries
#4
Magdalena Razmus
Neuropsychological literature suggests that body representation is a multidimensional concept consisting of various types of representations. Previous studies have demonstrated dissociations between three types of body representation specified by the kind of data and processes, i.e. body schema, body structural description, and body semantics. The aim of the study was to describe the state of body representation in patients after vascular brain injuries and to provide evidence for the different types of body representation...
August 29, 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28840361/visual-word-recognition-and-vowelization-in-arabic-new-evidence-from-lexical-decision-task-performances
#5
Haitham Taha, Hanan Azaizah-Seh
The effect of vowelization signs on the process of visual word recognition in Arabic was investigated among 41 native Arab skilled readers with age average of 30.66 ± 9.09. The participants performed a lexical decision task using three types of words and pseudowords; full, partial and non-vowelized. The results showed that for both words and pseudowords, response times were shorter and accuracy levels were higher for the non-vowelized condition compared to the other conditions of vowelization. The results reinforce the argument that automatic lexical processes during word recognition in Arabic orthography might be disturbed by supplementary information such as vowelization...
August 24, 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28808826/use-of-evidence-in-a-categorization-task-analytic-and-holistic-processing-modes
#6
Alberto Greco, Stefania Moretti
Category learning performance can be influenced by many contextual factors, but the effects of these factors are not the same for all learners. The present study suggests that these differences can be due to the different ways evidence is used, according to two main basic modalities of processing information, analytically or holistically. In order to test the impact of the information provided, an inductive rule-based task was designed, in which feature salience and comparison informativeness between examples of two categories were manipulated during the learning phases, by introducing and progressively reducing some perceptual biases...
August 14, 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28808825/integrating-planning-perception-and-action-for-informed-object-search
#7
Luis J Manso, Marco A Gutierrez, Pablo Bustos, Pilar Bachiller
This paper presents a method to reduce the time spent by a robot with cognitive abilities when looking for objects in unknown locations. It describes how machine learning techniques can be used to decide which places should be inspected first, based on images that the robot acquires passively. The proposal is composed of two concurrent processes. The first one uses the aforementioned images to generate a description of the types of objects found in each object container seen by the robot. This is done passively, regardless of the task being performed...
August 14, 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28780698/multisensory-integration-and-age-dependent-sensitivity-to-body-representation-modification-induced-by-the-rubber-hand-illusion
#8
János Kállai, Péter Kincses, Beatrix Lábadi, Krisztina Dorn, Tibor Szolcsányi, Gergely Darnai, Ernő Hupuczi, József Janszky, Árpád Csathó
The aim of the present study was to compare junior and senior healthy participants for their multimodal integration capability. The instrument used for the investigation was the rubber hand illusion (RHI) where synchronous and asynchronous multimodal stimulation were applied. The study focused on assessing the rate of integration for visuo-tactile and visuo-proprioceptive stimuli. METHODS: From a large sample of right-handed volunteers, 50 senior employees (containing younger and middle age adults) and 51 senior retired (senior adults) participants were recruited...
August 5, 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28717829/configured-groups-hypothesis-fast-comparison-of-exact-large-quantities-without-counting
#9
Sébastien Miravete, André Tricot, Slava Kalyuga, Franck Amadieu
Our innate number sense cannot distinguish between two large exact numbers of objects (e.g., 45 dots vs 46). Configured groups (e.g., 10 blocks, 20 frames) are traditionally used in schools to represent large numbers. Previous studies suggest that these external representations make it easier to use symbolic strategies such as counting ten by ten, enabling humans to differentiate exactly two large numbers. The main hypothesis of this work is that configured groups also allow for a differentiation of large exact numbers, even when symbolic strategies become ineffective...
July 17, 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28676906/tacit-to-explicit-knowledge-conversion
#10
Osvaldo Cairó Battistutti, Dominik Bork
The ability to create, use and transfer knowledge may allow the creation or improvement of new products or services. But knowledge is often tacit: It lives in the minds of individuals, and therefore, it is difficult to transfer it to another person by means of the written word or verbal expression. This paper addresses this important problem by introducing a methodology, consisting of a four-step process that facilitates tacit to explicit knowledge conversion. The methodology utilizes conceptual modeling, thus enabling understanding and reasoning through visual knowledge representation...
July 4, 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28647861/qualitative-spatial-logic-descriptors-from-3d-indoor-scenes-to-generate-explanations-in-natural-language
#11
Zoe Falomir, Thomas Kluth
The challenge of describing 3D real scenes is tackled in this paper using qualitative spatial descriptors. A key point to study is which qualitative descriptors to use and how these qualitative descriptors must be organized to produce a suitable cognitive explanation. In order to find answers, a survey test was carried out with human participants which openly described a scene containing some pieces of furniture. The data obtained in this survey are analysed, and taking this into account, the QSn3D computational approach was developed which uses a XBox 360 Kinect to obtain 3D data from a real indoor scene...
June 24, 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28616664/erratum-to-the-effects-of-multiphasic-prepulses-on-automatic-and-attention-modulated-prepulse-inhibition
#12
Albert B Poje, Diane L Filion
No abstract text is available yet for this article.
August 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28474098/reasoning-and-mathematical-skills-contribute-to-normatively-superior-decision-making-under-risk-evidence-from-the-game-of-dice-task
#13
Marie-Theres Pertl, Laura Zamarian, Margarete Delazer
In this study, we assessed to what extent reasoning improves performance in decision making under risk in a laboratory gambling task (Game of Dice Task-Double, GDT-D). We also investigated to what degree individuals with above average mathematical competence decide better than those with average mathematical competence. Eighty-five participants performed the GDT-D and several numerical tasks. Forty-two individuals were asked to calculate the probabilities and the outcomes associated with the different options of the GDT-D before performing it...
August 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28451913/eeg-microstates-during-different-phases-of-transcendental-meditation-practice
#14
Pascal L Faber, Frederick Travis, Patricia Milz, Niyazi Parim
Two phases of Transcendental Meditation (TM)-transcending and undirected mentation-were compared to each other and to task-free resting using multichannel EEG recorded from 20 TM practitioners. An EEG microstate analysis identified four classes of microstates which were labeled A, B, C and D, based on their similarity to previously published classes. For each class of microstates, mean duration, coverage and occurrence were computed. Resting and transcending differed from undirected mentation with decreased prominence of Class A and increased prominence of Class D microstates...
August 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28444522/the-movement-induced-self-reference-effect-enhancing-memorability-through-movement-toward-the-self
#15
Mark A Oakes, Serge V Onyper
Much evidence suggests that bodily actions affect cognitive states. In particular, pulling owned objects toward the self improves memory for those objects compared to memory for objects pushed away from the self. Experiments 1 and 2 examined the effect of incidental joystick movement on static stimuli, hypothesizing that using the physical self (rather than a computer monitor) as a reference point would enhance memory for items categorized via a toward-the-self action but not toward-the-computer-monitor action...
August 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28434136/facial-expressions-and-speech-acts-experimental-evidences-on-the-role-of-the-upper-face-as-an-illocutionary-force-indicating-device-in-language-comprehension
#16
Filippo Domaneschi, Marcello Passarelli, Carlo Chiorri
Language scientists have broadly addressed the problem of explaining how language users recognize the kind of speech act performed by a speaker uttering a sentence in a particular context. They have done so by investigating the role played by the illocutionary force indicating devices (IFIDs), i.e., all linguistic elements that indicate the illocutionary force of an utterance. The present work takes a first step in the direction of an experimental investigation of non-verbal IFIDs because it investigates the role played by facial expressions and, in particular, of upper-face action units (AUs) in the comprehension of three basic types of illocutionary force: assertions, questions, and orders...
August 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28401360/the-effects-of-multiphasic-prepulses-on-automatic-and-attention-modulated-prepulse-inhibition
#17
Albert B Poje, Diane L Filion
Prepulse inhibition (PPI) is widely viewed as an operational measure of sensorimotor gating. Previous research has shown that sensorimotor gating can occur automatically and also can be influenced by selective attention. The present research investigated the relationship of the transient detection response (TDR) with automatic and attention-modulated PPI using a novel "multiphasic" prepulse stimulus. Experiment 1 compared discrete versus multiphasic prepulse types in a no-task PPI protocol to validate multiphasic prepulses as effective elicitors of automatic sensorimotor gating...
August 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28374126/finger-posing-primes-number-comprehension
#18
Elena Sixtus, Martin H Fischer, Oliver Lindemann
Canonical finger postures, as used in counting, activate number knowledge, but the exact mechanism for this priming effect is unclear. Here we dissociated effects of visual versus motor priming of number concepts. In Experiment 1, participants were exposed either to pictures of canonical finger postures (visual priming) or actively produced the same finger postures (motor priming) and then used foot responses to rapidly classify auditory numbers (targets) as smaller or larger than 5. Classification times revealed that manually adopted but not visually perceived postures primed magnitude classifications...
August 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28374125/edge-detection-based-on-hodgkin-huxley-neuron-model-simulation
#19
Hayat Yedjour, Boudjelal Meftah, Olivier Lézoray, Abdelkader Benyettou
In this paper, we propose a spiking neural network model for edge detection in images. The proposed model is biologically inspired by the mechanisms employed by natural vision systems, more specifically by the biologically fulfilled function of simple cells of the human primary visual cortex that are selective for orientation. Several aspects are studied in this model according to three characteristics: feedforward spiking neural structure; conductance-based model of the Hodgkin-Huxley neuron and Gabor receptive fields structure...
August 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28364341/the-role-of-stimulus-predictability-in-the-allocation-of-attentional-resources-an-eye-tracking-study
#20
Magdalena Król, Magdalena Kilan-Banach, Renata Strzelecka
By allocating less attention to predictable events we are able to focus on novel, unpredictable and unexpected events that require more extensive processing. This strategy should result in improved performance by optimizing the use of brain's limited resources. Participants' task was to look at two types of stimuli presented simultaneously at the opposite sides of a computer screen: "static" stimuli, i.e. emotionally neutral photographs; and "dynamic" stimuli, i.e. video clips presenting a moving dot. The dot moved along a predictable, semi-predictable or random trajectory...
August 2017: Cognitive Processing
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