Split-Brain: What We Know Now and Why This is Important for Understanding Consciousness

Haan, E.H.F. de; Corballis, Paul M.; Hillyard, Steven A.; Marzi, Carlo Alberto; Seth, Anil K.; Lamme, Victor A. F.; Volz, Lukas J.; Fabri, Mara; Schechter, Elizabeth; Bayne, Tim; Corballis, Michael C.; Pinto, Yaïr

doi:10.1007/s11065-020-09439-3

Cited by 59 publications

(45 citation statements)

References 108 publications

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“…Psychologists have long been fascinated by pathologies, such as the split-brain syndrome, in which this unity apparently breaks down [ 36 , 37 ]. Subjects who have had the corpus callosum wholly or partially severed sometimes display disunified behaviour when different stimuli are presented to the two halves of the visual field.…”

Section: Integration At a Time (Unity)mentioning

confidence: 99%

Dimensions of Animal Consciousness

Birch

Schnell

Clayton

2020

Trends in Cognitive Sciences

197

137

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How does consciousness vary across the animal kingdom? Are some animals ‘more conscious’ than others? This article presents a multidimensional framework for understanding interspecies variation in states of consciousness. The framework distinguishes five key dimensions of variation: perceptual richness, evaluative richness, integration at a time, integration across time, and selfconsciousness. For each dimension, existing experiments that bear on it are reviewed and future experiments are suggested. By assessing a given species against each dimension, we can construct a consciousness profile for that species. On this framework, there is no single scale along which species can be ranked as more or less conscious. Rather, each species has its own distinctive consciousness profile.

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Section: Integration At a Time (Unity)mentioning

confidence: 99%

Dimensions of Animal Consciousness

Birch

Schnell

Clayton

2020

Trends in Cognitive Sciences

197

137

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“…Even with extensive brain mapping along these lines, the result would be an explanatorily inert descriptive list of areas or patterns of activity. Arbitrary NCCs are not likely to do much to let us understand the brain basis of consciousness, or to use such an understanding to help with consciousness-related conditions, such as disorders of consciousness (Fernández-Espejo & Owen, 2013), split brains (De Haan et al, 2020), or islands of consciousness (Bayne et al, 2020).…”

Section: The Need For a Systematic Nccmentioning

confidence: 99%

Predictive processing as a systematic basis for identifying the neural correlates of consciousness

Hohwy

Seth

2020

PhiMiSci

Self Cite

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The search for the neural correlates of consciousness is in need of a systematic, principled foundation that can endow putative neural correlates with greater predictive and explanatory value. Here, we propose the predictive processing framework for brain function as a promising candidate for providing this systematic foundation. The proposal is motivated by that framework’s ability to address three general challenges to identifying the neural correlates of consciousness, and to satisfy two constraints common to many theories of consciousness. Implementing the search for neural correlates of consciousness through the lens of predictive processing delivers strong potential for predictive and explanatory value through detailed, systematic mappings between neural substrates and phenomenological structure. We conclude that the predictive processing framework, precisely because it at the outset is not itself a theory of consciousness, has significant potential for advancing the neuroscience of consciousness.

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“…Thus, continued development must lead to the cortex rewiring through the elimination of overproduced connections [207], perhaps via experience and learning [208,209]. Clearly, such results indicate that the functional development of the CC needs more extensive investigation [2].…”

Section: Interhemispheric Communication and Coordinationmentioning

confidence: 99%

“…There is a general consensus among neuroscientists that the human left and right hemispheres of the brain have different perceptual, motor, emotional, and cognitive functions with the most distinctive difference of a left-hemisphere predominance in praxis (e.g., gestures and tool use) and language (speech and comprehension) functions [1]. However, many have argued that the phenomenon of hemispheric specialization of function is poorly specified as to what functions are separated between hemispheres and how functions interrelate both within a hemisphere and across hemispheres (e.g., [2,3]). In addition, the mechanisms that underlie these hemispheric differences in function are unclear (cf., [4]).…”

Section: Introductionmentioning

confidence: 99%

Handedness Development: A Model for Investigating the Development of Hemispheric Specialization and Interhemispheric Coordination

Michel

2021

Symmetry

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The author presents his perspective on the character of science, development, and handedness and relates these to his investigations of the early development of handedness. After presenting some ideas on what hemispheric specialization of function might mean for neural processing and how handedness should be assessed, the neuroscience of control of the arms/hands and interhemispheric communication and coordination are examined for how developmental processes can affect these mechanisms. The author’s work on the development of early handedness is reviewed and placed within a context of cascading events in which different forms of handedness emerge from earlier forms but not in a deterministic manner. This approach supports a continuous rather than categorical distribution of handedness and accounts for the predominance of right-handedness while maintaining a minority of left-handedness. Finally, the relation of the development of handedness to the development of several language and cognitive skills is examined.

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Split-Brain: What We Know Now and Why This is Important for Understanding Consciousness

Abstract: Recently, the discussion regarding the consequences of cutting the corpus callosum ("split-brain") has regained momentum

Cited by 59 publications

References 108 publications

Dimensions of Animal Consciousness

Dimensions of Animal Consciousness

Predictive processing as a systematic basis for identifying the neural correlates of consciousness

Handedness Development: A Model for Investigating the Development of Hemispheric Specialization and Interhemispheric Coordination

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