scholarly journals Messages from the Brain Connectivity Regarding Neural Correlates of Consciousness

2012 ◽  
Vol 21 (3) ◽  
pp. 113-122 ◽  
Author(s):  
Seung-Hyun Jin ◽  
Chun Kee Chung
Keyword(s):  
Brain Connectivity ◽  
Neural Correlates ◽  
Neural Correlates Of Consciousness ◽  
The Brain

scholarly journals Ask and You Shall Receive: A closer look on unsolved consciousness issue

2021 ◽  
Author(s):  
Ali Motavalli ◽  
◽  
Javad Mahmoudi ◽  
Alireza Majdi ◽  
Saeed Sadigh-Eteghad ◽  
...  
Keyword(s):  
Middle Ages ◽  
Brain Function ◽  
Neural Correlates ◽  
Higher Order ◽  
Narrative Review ◽  
Historical Aspects ◽  
Neural Correlates Of Consciousness ◽  
States Of Consciousness ◽  
Mind And Body ◽  
The Brain

Although there are numerous views about the concept of consciousness, no consensus exists regarding the meaning. However, with the aid of the latest neuroscientific developments, the misleading obstacles related to consciousness have been removed. Over the last few decades, neuroscientific efforts in determining the function of the brain and merging these findings with philosophical theories, have brought a more comprehensive perception of the notion of consciousness. In addition to metaphysical/ontological views of consciousness e.g., higher-order theories, reflexive theories, and representationalist theories, there are some brain directed topics in this matter which include but not are limited to neural correlates of consciousness (NCC), brain loop connectivity, and lateralization. This narrative review sheds light on cultural and historical aspects of consciousness in old and middle ages and introduces some of the prominent philosophical discussions related to mind and body. Also, it illustrates the correlation of brain function with states of consciousness with a focus on the roles of function and connectivity.

Global-workspace theory

2019 ◽  
pp. 96-115
Author(s):  
Peter Carruthers
Keyword(s):  
Cognitive Neuroscience ◽  
Neural Correlates ◽  
Theoretical Background ◽  
Neural Correlates Of Consciousness ◽  
Nonhuman Animals ◽  
Global Workspace ◽  
The Brain ◽  
Global Workspace Theory

The present chapter outlines and defends the empirical case supporting global-workspace theory as the best account of the functional/neural correlates of consciousness, at least. The chapter explains the theoretical background to global-workspace theory and the evidence that supports it. It shows how the theory is well-supported by raft of findings in psychology and cognitive neuroscience, as well as by recent experiments tracking conscious contents in the brain. The chapter also replies to a variety of critiques and alleged forms of counter-evidence. It concludes by considering whether the fact that much of this evidence has been collected in work with nonhuman animals begs the consciousness-question that forms our topic (arguing that it does not).

scholarly journals The Neural Correlates of Consciousness and Attention: Two Sister Processes of the Brain

2019 ◽  
Vol 13 ◽  
Author(s):  
Andrea Nani ◽  
Jordi Manuello ◽  
Lorenzo Mancuso ◽  
Donato Liloia ◽  
Tommaso Costa ◽  
...  
Keyword(s):  
Neural Correlates ◽  
Neural Correlates Of Consciousness ◽  
The Brain

scholarly journals The neural correlates of consciousness: an analysis of cognitive skill learning

1998 ◽  
Vol 353 (1377) ◽  
pp. 1889-1901 ◽  
Author(s):  
◽  
M. E. Raichle
Keyword(s):  
Neural Correlates ◽  
Neural Circuitry ◽  
Cognitive Skill ◽  
Functional Brain Imaging ◽  
Skill Learning ◽  
Neural Correlates Of Consciousness ◽  
Baseline Activity ◽  
Before And After ◽  
Imaging Strategy ◽  
The Brain

This paper presents a functional brain–imaging strategy designed to isolate neural correlates of consciousness in humans. This strategy is based on skill learning. In the example presented (rapidly generating verbs for visually presented nouns), a cognitive skill is examined before and after practice. As shown, there are marked qualitative differences in the neural circuitry supporting performance of this task in the naive and practised state that include, importantly, both increases and decreases from the baseline activity of the brain.

scholarly journals Neural correlates of consciousness are not pictorial representations

2001 ◽  
Vol 24 (5) ◽  
pp. 999-1000 ◽  
Author(s):  
Geraint Rees ◽  
Chris Frith
Keyword(s):  
Neural Activity ◽  
Empirical Data ◽  
Neural Correlates ◽  
Neural Correlates Of Consciousness ◽  
Visual Consciousness ◽  
One To One ◽  
Pictorial Representations ◽  
The Brain

O'Regan & Noë (O&N) are pessimistic about the prospects for discovering the neural correlates of consciousness. They argue that there can be no one-to-one correspondence between awareness and patterns of neural activity in the brain, so a project attempting to identify the neural correlates of consciousness is doomed to failure. We believe that this degree of pessimism may be overstated; recent empirical data show some convergence in describing consistent patterns of neural activity associated with visual consciousness.

scholarly journals Mathematics and the Brain: A Category Theoretical Approach to Go Beyond the Neural Correlates of Consciousness

Entropy ◽  
2019 ◽  
Vol 21 (12) ◽  
pp. 1234 ◽  
Author(s):  
Georg Northoff ◽  
Naotsugu Tsuchiya ◽  
Hayato Saigo
Keyword(s):  
Natural Transformation ◽  
Neural Substrates ◽  
Neural Correlates ◽  
Mathematical Framework ◽  
Mathematical Concepts ◽  
Neural Correlates Of Consciousness ◽  
Formal Framework ◽  
The Relationship ◽  
The Brain ◽  
Integrated Information Theory

Consciousness is a central issue in neuroscience, however, we still lack a formal framework that can address the nature of the relationship between consciousness and its physical substrates. In this review, we provide a novel mathematical framework of category theory (CT), in which we can define and study the sameness between different domains of phenomena such as consciousness and its neural substrates. CT was designed and developed to deal with the relationships between various domains of phenomena. We introduce three concepts of CT which include (i) category; (ii) inclusion functor and expansion functor; and, most importantly, (iii) natural transformation between the functors. Each of these mathematical concepts is related to specific features in the neural correlates of consciousness (NCC). In this novel framework, we will examine two of the major theories of consciousness, integrated information theory (IIT) of consciousness and temporospatial theory of consciousness (TTC). We conclude that CT, especially the application of the notion of natural transformation, highlights that we need to go beyond NCC and unravels questions that need to be addressed by any future neuroscientific theory of consciousness.

scholarly journals Temporal Dynamics of Neural Activity at the Moment of Emergence of Conscious Percept

2012 ◽  
Vol 24 (10) ◽  
pp. 1983-1997 ◽  
Author(s):  
Yasuki Noguchi ◽  
Takemasa Yokoyama ◽  
Megumi Suzuki ◽  
Shinichi Kita ◽  
Ryusuke Kakigi
Keyword(s):  
Neural Activity ◽  
Temporal Dynamics ◽  
Rapid Change ◽  
Neural Correlates ◽  
Conscious Perception ◽  
Bottom Up ◽  
Neural Correlates Of Consciousness ◽  
Ventral Pathway ◽  
The Moment ◽  
The Brain

From which regions of the brain do conscious representations of visual stimuli emerge? This is an important but controversial issue in neuroscience because some studies have reported a major role of the higher visual regions of the ventral pathway in conscious perception, whereas others have found neural correlates of consciousness as early as in the primary visual areas and in the thalamus. One reason for this controversy has been the difficulty in focusing on neural activity at the moment when conscious percepts are generated in the brain, excluding any bottom–up responses (not directly related to consciousness) that are induced by stimuli. In this study, we address this issue with a new approach that can induce a rapid change in conscious perception with little influence from bottom–up responses. Our results reveal that the first consciousness-related activity emerges from the higher visual region of the ventral pathway. However, this activity is rapidly diffused to the entire brain, including the early visual cortex. These results thus integrate previous “higher” and “lower” views on the emergence of neural correlates of consciousness, providing a new perspective for the temporal dynamics of consciousness.

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