Tactile Modality
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Equivalência de Estímulos Auditivos e Táteis em Crianças com Deficiência Visual: Ensino de Letras do Alfabeto Braile e Romano
The formation of equivalence classes has been documented mainly with auditory and visual stimuli. This study investigated the emergence of equivalence relations with auditory and tactual stimuli with blind children. The stimuli were three vowels represented in three tactual modalities: plastic (B), Braille (C) and raised (D). Six 5-8 years old blind children
Publicado em: 2007
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2. The process of knowledge acquisicion in the blind: of the body universe from symbolic universe / Os Caminhos da aquisição do conhecimento e a cegueira: do universo do corpo ao universo simbólico
The aim of this research is to investigate the process of knowledge acquisicion in the blind concerning the mental representations - images, as well as the concepts - they have related to the world of objects, situations, events and human relatioships. It is based on the following questions which emerged from the period of twenty years of professional practi
Publicado em: 2000
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3. Bimodal extinction without cross-modal extinction.
Three patients with unilateral neurological injury were clinically examined. All showed consistent unilateral extinction in the tactile and visual modalities on simultaneous intramodal stimulation. There was virtually no evidence for cross-modal extinction, however, so that contralateral stimulation of one modality would have extinguished perception of ipsil
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4. Modality maps within primate somatosensory cortex
The sensations of pressure, flutter, and vibration are psychophysically distinct tactile modalities produced by frequency-specific vibrotactile stimulation of different mechanoreceptors in the skin. The information coded by the different low-threshold mechanoreceptors are carried by anatomically and electrophysiologically distinct pathways that remain separa
National Academy of Sciences.
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5. Beyond sensory images: Object-based representation in the human ventral pathway
We investigated whether the topographically organized, category-related patterns of neural response in the ventral visual pathway are a representation of sensory images or a more abstract representation of object form that is not dependent on sensory modality. We used functional MRI to measure patterns of response evoked during visual and tactile recognition
National Academy of Sciences.
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6. Integration of auditory and vibrotactile stimuli: Effects of phase and stimulus-onset asynchrony
The perceptual integration of 250 Hz, 500 ms vibrotactile and auditory tones was studied in detection experiments as a function of (1) relative phase and (2) temporal asynchrony of the tone pulses. Vibrotactile stimuli were delivered through a single-channel vibrator to the left middle fingertip and auditory stimuli were presented diotically through headphon
Acoustical Society of America.
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7. Visual Input Regulates Circuit Configuration in Courtship Conditioning of Drosophila melanogaster
Courtship and courtship conditioning are behaviors that are regulated by multiple sensory inputs, including chemosensation and vision. Globally inhibiting CaMKII activity in Drosophila disrupts courtship plasticity while leaving visual and chemosensory perception intact. Light has been shown to modulate CaMKII-dependent memory formation in this paradigm and
Cold Spring Harbor Laboratory Press.
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8. Processing of speech signals for physical and sensory disabilities.
Assistive technology involving voice communication is used primarily by people who are deaf, hard of hearing, or who have speech and/or language disabilities. It is also used to a lesser extent by people with visual or motor disabilities. A very wide range of devices has been developed for people with hearing loss. These devices can be categorized not only b