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  1.  19
    Terence V. Sewards & Mark A. Sewards (2002). On the Neural Correlates of Object Recognition Awareness: Relationship to Computational Activities and Activities Mediating Perceptual Awareness. Consciousness and Cognition 11 (1):51-77.
    Based on theoretical considerations of Aurell (1979) and Block (1995), we argue that object recognition awareness is distinct from purely sensory awareness and that the former is mediated by neuronal activities in areas that are separate and distinct from cortical sensory areas. We propose that two of the principal functions of neuronal activities in sensory cortex, which are to provide sensory awareness and to effect the computations that are necessary for object recognition, are dissociated. We provide examples of how this (...)
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  2.  21
    Terence V. Sewards & Mark A. Sewards (2001). On the Correlation Between Synchronized Oscillatory Activities and Consciousness. Consciousness and Cognition 10 (4):485-495.
    Recent experiments have shown that the amplitudes of cortical gamma band oscillatory activities that occur during anesthesia are often greater than amplitudes of similar activities that occur without anesthesia. This result is apparently at odds with the hypothesis that synchronized oscillatory activities constitute the neural correlate of consciousness. We argue that while synchronization and oscillatory patterning are necessary conditions for consciousness, they are not sufficient. Based on the results of a binocular rivalry study of Fries et al. (1997), we propose (...)
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  3.  19
    Terence V. Sewards & Mark A. Sewards (2000). The Awareness of Thirst: Proposed Neural Correlates. Consciousness and Cognition 9 (4):463-487.
    The neural and endocrine bases of the generation of thirst are reviewed. Based on this review, a hierarchical system of neural structures that regulate water conservation and acquisition is proposed. The system includes primary sensory-receptive areas; secondary sensory structures (circumventricular organs), which detect levels of hormones, including angiotensin II and vasopressin, which are involved in generating thirst; preoptic and hypothalamic structures; and an area within the ventrolateral quadrant of the periaqueductal gray matter. Hodological and other data are used to determine (...)
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  4.  17
    Terence V. Sewards & Mark A. Sewards (2000). Visual Awareness Due to Neuronal Activities in Subcortical Structures: A Proposal. Consciousness and Cognition 9 (1):86-116.
    It has been shown that visual awareness in the blind hemifield of hemianopic cats that have undergone unilateral ablations of visual cortex can be restored by sectioning the commissure of the superior colliculus or by destroying a portion of the substantia nigra contralateral to the cortical lesion (the Sprague effect). We propose that the visual awareness that is recovered is due to synchronized oscillatory activities in the superior colliculus ipsilateral to the cortical lesion. These oscillatory activities are normally partially suppressed (...)
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    Terence V. Sewards, Mark A. Sewards, Nachshon Meiran, Bernhard Hommel, Uri Bibi, Idit Lev, Michael Schredl, Arthur T. Funkhouser, Claude M. Cornu & Hans-Peter Hirsbrunner (2001). Elisabeth Bacon, Jean-Marie Danion, Françoise Kauffmann-Muller, and Agnes Bruant. Conscious. Consciousness and Cognition 10:436.
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