Graduate studies at Western
Trends in Cognitive Sciences 3 (7):254-264 (1999)
|Abstract||Traditional explanations of multistable visual phenomena (e.g. ambiguous figures, perceptual rivalry) suggest that the basis for spontaneous reversals in perception lies in antagonistic connectivity within the visual system. In this review, we suggest an alternative, albeit speculative, explanation for visual multistability – that spontaneous alternations reflect responses to active, programmed events initiated by brain areas that integrate sensory and non-sensory information to coordinate a diversity of behaviors. Much evidence suggests that perceptual reversals are themselves more closely related to the expression of a behavior than to passive sensory responses: (1) they are initiated spontaneously, often voluntarily, and are influenced by subjective variables such as attention and mood; (2) the alternation process is greatly facilitated with practice and compromised by lesions in non-visual cortical areas; (3) the alternation process has temporal dynamics similar to those of spontaneously initiated behaviors; (4) functional imaging reveals that brain areas associated with a variety of cognitive behaviors are specifically activated when vision becomes unstable. In this scheme, reorganizations of activity throughout the visual cortex, concurrent with perceptual reversals, are initiated by higher, largely non-sensory brain centers. Such direct intervention in the processing of the sensory input by brain structures associated with planning and motor programming might serve an important role in perceptual organization, particularly in aspects related to selective attention|
|Keywords||No keywords specified (fix it)|
|Categories||categorize this paper)|
|Through your library||Configure|
Similar books and articles
Alfredo Pereira Jr (2003). Toward an Explanation of the Genesis of Ketamine-Induced Perceptual Distortions and Hallucinatory States. Brain and Mind 4 (3):307-326.
Jason S. McCarley & Gregory J. DiGirolamo (2001). One Visual System with Two Interacting Visual Streams. Behavioral and Brain Sciences 25 (1):112-113.
Ryota Kanai, Farshad Moradi, Shinsuke Shimojo & Frans A. J. Verstraten (2005). Perceptual Alternation Induced by Visual Transients. Perception 34 (7):803-822.
Joel Norman (2001). Two Visual Systems and Two Theories of Perception: An Attempt to Reconcile the Constructivist and Ecological Approaches. Behavioral and Brain Sciences 25 (1):73-96.
Petra Stoerig & Stephan Brandt (1993). The Visual System and Levels of Perception: Properties of Neuromental Organization. Theoretical Medicine and Bioethics 14 (2).
Donna M. Lloyd, Elizabeth Lewis, Jacob Payne & Lindsay Wilson (2012). A Qualitative Analysis of Sensory Phenomena Induced by Perceptual Deprivation. Phenomenology and the Cognitive Sciences 11 (1):95-112.
N. Leopold Logothetis & Sheinberg A. (2003). Neural Mechanisms of Perceptual Organization. In Naoyuki Osaka (ed.), Neural Basis of Consciousness. John Benjamins.
K. Moutoussis, G. A. Keliris, Z. Kourtzi & N. K. Logothetis (2005). A Binocular Rivalry Study of Motion Perception in the Human Brain. Vision Research 45 (17):2231-43.
David A. Leopold, Melanie Wilke, Alexander Maier & Nikos K. Logothetis (2002). Stable Perception of Visually Ambiguous Patterns. Nature Neuroscience 5 (6):605-609.
N. K. Logothetis D. A. Leopold (1999). Multistable Phenomena: Changing Views in Perception. Trends in Cognitive Sciences 3:254-264.
Added to index2009-01-28
Total downloads72 ( #14,377 of 738,654 )
Recent downloads (6 months)2 ( #37,338 of 738,654 )
How can I increase my downloads?