Base de dados : LILACS
Pesquisa : PSYCHOLOGY AND NEUROSCIENCE (Todos os anos) - LILACS
Referências encontradas : 264 [refinar]
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Santana, Jeanny Joana Rodrigues Alves de
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Id: lil-741672
Autor: Santana, Jeanny Joana Rodrigues Alves de; Galera, Cesar.
Título: Visual-spatial and verbal-spatial binding in working memory
Fonte: Psychol. neurosci. (Impr.);7(3):399-406, July-Dec. 2014. ilus, graf.
Idioma: en.
Projeto: Fundação de Amparo à Pesquisa do Estado de São Paulo.
Resumo: The asymmetric pattern of binding of features in working memory is a controversial topic in the literature. The binding of visual- spatial and verbal-spatial information was studied in a serial recognition task to address the contribution of spatial location, visual appearance, and verbal identity to binding in working memory. The participants (n = 32) made a recognition judgment of two sequences of four stimuli each based on a relevant dimension while ignoring changes in an irrelevant dimension. In the visual and verbal tasks, the location was irrelevant. In the spatial tasks, the visual or verbal dimension was irrelevant. Our data showed that the visual or verbal characteristics of the object were incidentally encoded with the spatial location, but the spatial location of the items was not codified together with either the verbal features or visual characteristics when a verbal strategy was limited by articulatory suppression. This asymmetry in binding memory when the participants had to retain one of the features that was presented suggests a functional interaction between specific components of modalities of information and a system that maintains the multimodal representation.
Descritores: Memória de Curto Prazo
Percepção Espacial
Percepção Visual
Responsável: BR85.1 - Biblioteca Dante Moreira Leite


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Lopes, Ederaldo José
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Id: lil-741671
Autor: Lopes, Ederaldo José; Garcia, Ricardo Basso.
Título: On the possibility of using reaction time to study false memories
Fonte: Psychol. neurosci. (Impr.);7(3):393-397, July-Dec. 2014.
Idioma: en.
Resumo: Research on false memories has extensively used the recognition and recollection of lists of semantically associated words, called the Deese-Roediger-McDermott (DRM) paradigm. In the DRM procedure, the measure of accuracy/errors is usually the main dependent variable. In this paper we review research that integrated reaction time measures into the DRM paradigm and discuss the future contributions of measures of reaction time to the understanding of false memories.
Descritores: Memória
Tempo de Reação
Responsável: BR85.1 - Biblioteca Dante Moreira Leite


  3 / 264 LILACS  
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Bueno, José Lino Oliveira
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Id: lil-741670
Autor: Nather, Francisco Carlos; Fernandes, Paola Alarcon Monteiro; Bueno, José Lino Oliveira.
Título: Subjective time perception is affected by different durations of exposure to abstract paintings that represent human movement
Fonte: Psychol. neurosci. (Impr.);7(3):381-392, July-Dec. 2014. tab.
Idioma: en.
Resumo: Time perception can be affected by real emotional pictures of people that evoke different levels of arousal. Figurative artwork images of body postures that imply movement with different intensities and evoke different levels of arousal can modulate the perception of time. The present study investigated whether abstract paintings that represent motion in different ways affect the perception of time when subjects are exposed to the paintings for different durations. Undergraduate students observed 20 abstract paintings from different artistic schools (i.e., cubism, constructivism, expressionism, and futurism). They observed for 3 s each painting and estimated the time of exposure (reproduction method). After the time estimations, the subjects completed different semantic Movement, Arousal, Complexity, and Recognition scales to obtain information about how the painting compositions were perceived. Time distortions were observed for only two cubist paintings that represented human forms, which were related to both evoked arousal and implied movement (Experiment 1). Experiment 2 further verified whether these time distortions were related to implied movement perception or arousal. Different groups of participants were exposed for 3 and 9 s to only four cubist paintings that represented human forms. These time exposures (3 and 9 s) were used because the arousal-evoking effects may be transient for exposure times that are longer than 2-3 s. The data analysis revealed overestimation of time for the cubist painting that had greater arousal and movement scores only when the subjects were exposed for 9 s, showing that implied movement in abstract human figures is more effective than images with emotional content. We discuss the effect of durations of exposure to pictorial characteristics of artwork on time perception, emphasizing aspects of the visual perception of human forms in cubist paintings and arousal effects in an aesthetic episode.
Descritores: Pinturas
Percepção do Tempo
-Cognição
Limites: Seres Humanos
Masculino
Feminino
Adulto Jovem
Responsável: BR85.1 - Biblioteca Dante Moreira Leite


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Id: lil-741669
Autor: Walter, Steffen; Gruss, Sascha; Limbrecht-Ecklundt, Kerstin; Traue, Harald C; Werner, Philipp; Al-Hamadi, Ayoub; Diniz, Nicolai; Silva, Gustavo Moreira da; Andrade, Adriano O.
Título: Automatic pain quantification using autonomic parameters
Fonte: Psychol. neurosci. (Impr.);7(3):363-380, July-Dec. 2014. ilus, tab.
Idioma: en.
Resumo: The objective measurement of subjective, multi-dimensionally experienced pain is a problem for which there has not been an adequate solution. Although verbal methods (e.g., pain scales and questionnaires) are commonly used to measure clinical pain, they tend to lack objectivity, reliability, or validity when applied to mentally impaired individuals. Biopotential and behavioral parameters may represent a solution. Such coding systems already exist, but they are either very costly or time-consuming or have not been sufficiently evaluated. In this context, we collected a database of biopotentials to advance an automated pain recognition system, determine its theoretical testing quality, and optimize its performance. For this purpose, participants were subjected to painful heat stimuli under controlled conditions. One hundred thirty-five features were extracted from the mathematical groupings of amplitude, frequency, stationarity, entropy, linearity, and variability. The following features were chosen as the most selective: (1) electromyography corrugator peak to peak, (2) corrugator shannon entropy, and (3) heart rate variability slope RR. Individual-specific calibration allows the adjustment of feature patterns, resulting in significantly more accurate pain detection rates. The objective measurement of pain in patients will provide valuable information for the clinical team, which may aid the objective assessment of treatment (e.g., effectiveness of drugs for pain reduction, information on surgical indication, and quality of care provided to patients).
Descritores: Medição da Dor
-Controle Automático
Responsável: BR85.1 - Biblioteca Dante Moreira Leite


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Id: lil-741668
Autor: Oliveira, Iraides M; Machado, Alessandro R. P; Pereira, Adriano A; Andrade, Adriano O.
Título: Estimated features from surface EMG of the lower limb correlate with the subjective sensation of pain
Fonte: Psychol. neurosci. (Impr.);7(3):355-361, July-Dec. 2014. ilus, tab.
Idioma: en.
Resumo: Pain assessment is very important in establishing the efficacy of analgesics and therapies, but because pain is a subjective experience, using methods that represent pain objectively is necessary. A number of biopotentials have been employed in studies of the objective assessment of pain. However, few investigations have considered the peripheral nervous system response to electrical stimulation. The present study evaluated a method for pain quantification based on the analysis of biopotentials. We assessed electromyographic activity that resulted from evoked movements from the nociceptive flexion reflex (NFR). We investigated correlations between stimulus intensity, features extracted from surface electromyography (EMG), and subjective pain reported by subjects using a Visual Analog Scale (VAS). A total of 10 healthy male subjects without any pain disorder, aged 20-27 years, participated in the study. A high correlation (r2 > .87) was found between stimulus intensity and the following features extracted from the EMG: area, root mean square (RMS), and entropy. A high correlation (r2 > .99) was also found between stimulus intensity and subjective pain reported on the VAS. We conclude that estimating features from electromyographic signals that are correlated with subjective pain sensations and the intensity of the electrical stimulus is possible. Entropy, RMS, and the area of the electromyographic signal appear to be relevant parameters in correlations with subjective pain.
Descritores: Eletromiografia
Dor
Medição da Dor
-Estimulação Elétrica
Limites: Seres Humanos
Masculino
Adulto
Responsável: BR85.1 - Biblioteca Dante Moreira Leite


  6 / 264 LILACS  
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Id: lil-741667
Autor: Pelegrin, Andressa K. A. P; Siqueira, Hilze B.O. Moura; Garbi, Márcia O. S. S; Saltareli, Simone; Sousa, Fátima Faleiros.
Título: Evaluation and measurement of pain in the aging process
Fonte: Psychol. neurosci. (Impr.);7(3):349-354, July-Dec. 2014. tab.
Idioma: en.
Projeto: Foundation for Research Support of São Paulo.
Resumo: The purpose of the present study was to evaluate pain in the aging process in long-term care institutions. The study included 46 elderly subjects of both genders and with chronic pain. Descriptors of chronic pain were analyzed using psychophysical category estimation methods, and the thematic content of semi-structured interviews was analyzed. Chronic pain was perceived in 33.33% of the elderly subjects. For the descriptors of pain, the results showed higher scores for "painful." In the interview, the thematic units were time, start of symptoms, coping, pain-related causes, current situation, and other perceptions about pain. Pain was related to physical, emotional, and cognitive factors. The present results shed light on "pain" and "aging" phenomena and may contribute to improving the management of pain symptoms in long-term institution residents.
Descritores: Envelhecimento
Medição da Dor
-Instituição de Longa Permanência para Idosos
Limites: Seres Humanos
Masculino
Feminino
Idoso
Responsável: BR85.1 - Biblioteca Dante Moreira Leite


  7 / 264 LILACS  
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Id: lil-741666
Autor: Kennedy, John M.
Título: Esthetics, "Aida" and "Re-entry shock": Fountains in a blind woman's drawings
Fonte: Psychol. neurosci. (Impr.);7(3):341-347, July-Dec. 2014. ilus.
Idioma: en.
Resumo: Blind people can invent drawings for material objects like cups, and matters esthetic, like "glory" at the climax of a story. In sketches of cups, their drawings are realistic, using lines for surface edges of profiles, and borders of cross-sections. They are metaphoric if they show purely mental events. These points are illustrated by two drawings by EW, a blind woman with two notable uses of a "fountain" device. One shows "glory" in the opera "Aida" and one is for memories overflowing.
Descritores: Arte
Cegueira
Metáfora
Percepção do Tato
-Estética
Limites: Seres Humanos
Feminino
Adulto
Responsável: BR85.1 - Biblioteca Dante Moreira Leite


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Id: lil-741665
Autor: Rodrigues, Sérgio T; Galvão, Nicole C; Gotardi, Gisele C.
Título: Visual estimation of apertures for wheelchair locomotion in novices: perceptual judgment and motor practice
Fonte: Psychol. neurosci. (Impr.);7(3):331-340, July-Dec. 2014. ilus, tab.
Idioma: en.
Resumo: The aim of the present study was to determine the effects of motor practice on visual judgments of apertures for wheelchair locomotion and the visual control of wheelchair locomotion in wheelchair users who had no prior experience. Sixteen young adults, divided into motor practice and control groups, visually judged varying apertures as passable or impassable under walking, pre-practice, and post-practice conditions. The motor practice group underwent additional motor practice in 10 blocks of five trials each, moving the wheelchair through different apertures. The relative perceptual boundary was determined based on judgment data and kinematic variables that were calculated from videos of the motor practice trials. The participants overestimated the space needed under the walking condition and underestimated it under the wheelchair conditions, independent of group. The accuracy of judgments improved from the pre-practice to post-practice condition in both groups. During motor practice, the participants adaptively modulated wheelchair locomotion, adjusting it to the apertures available. The present findings from a priori visual judgments of space and the continuous judgments that are necessary for wheelchair approach and passage through apertures appear to support the dissociation between processes of perception and action.
Descritores: Locomoção
Destreza Motora
Percepção Visual
Cadeiras de Rodas
Responsável: BR85.1 - Biblioteca Dante Moreira Leite


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Id: lil-741664
Autor: Moraes, Renato.
Título: A model for selecting alternate foot placement during human locomotion
Fonte: Psychol. neurosci. (Impr.);7(3):319-329, July-Dec. 2014. ilus.
Idioma: en.
Resumo: The selection of alternate foot placement is based on visual inputs.
Descritores: Locomoção
Tempo de Reação
Percepção Visual
Responsável: BR85.1 - Biblioteca Dante Moreira Leite


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Id: lil-741663
Autor: Mauerberg-de Castro, Eliane; Moraes, Renato; Tavares, Carolina Paioli; Figueiredo, Gabriella Andreeta; Pacheco, Stephanie C. M; Costa, Thais D. A.
Título: Haptic anchoring and human postural control
Fonte: Psychol. neurosci. (Impr.);7(3):301-318, July-Dec. 2014. ilus.
Idioma: en.
Resumo: Several studies have emphasized the contribution of haptic input that results from the use of rigid and non-rigid tools to the postural control system. Experimental protocols such as the light touch and the anchor system are based on individuals' haptic exploration of the environment through direct tactile-kinesthetic contact, or indirectly through rigid or flexible tools that are attached to the body. In this article, we introduce the main findings of humans' haptic use of non-rigid tools during postural control tasks. We illustrate the effects of an anchor system paradigm on the maintenance of stability via haptic information. Haptic anchoring includes the handling of flexible cables that are attached to loads that are in contact with a surface. We include results of studies about haptic information gathered during the holding of a walking dog's leash. Studies that used the anchor system demonstrated its effectiveness in reducing body sway in several groups, including young adults, children, older individuals, and intellectually disabled individuals. We discuss several experimental designs and intervention protocols in order to illustrate how haptic anchoring could prompt functional plasticity.
Descritores: Equilíbrio Postural
Percepção do Tato
Responsável: BR85.1 - Biblioteca Dante Moreira Leite



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