Theories of consciousness from the perspective of an embedded processes view.

A review of recent behavioral and neuroscientific research on consciousness finds that information from various cognitive functions and brain areas is integrated into a conscious whole. The authors propose a new model in which this integration involves funneling information to a hub or focus of attention centered in the parietal lobes, which is functionally connected to areas representing currently attended information. This funneling process is described as the converse of global broadcasting proposed by other theories. The model incorporates many principles from previous research and aims to clarify the relation between consciousness and attention, though no existing theory fully captures the proposed organization of conscious thought.

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Abstract

Considerable recent research in neurosciences has dealt with the topic of consciousness, even though there is still disagreement about how to identify and classify conscious states. Recent behavioral work on the topic also exists. We survey recent behavioral and neuroscientific literature with the aims of commenting on strengths and weaknesses of the literature and mapping new directions and recommendations for experimental psychologists. We reconcile this literature with a view of human information processing (Cowan, 1988; Cowan et al., 2024) in which a capacity-limited focus of attention is embedded within the activated portion of long-term memory, with dual bottom-up and top-down control of the focus of attention. None of the many extant theories fully captures what we propose as the organization of conscious thought at cognitive and neural levels. It seems clear that information from various cognitive functions, based on signals from various brain areas, is integrated into a conscious whole. In our new proposal, the integration involves funneling information to a hub or focus of attention neurally centered in the parietal lobes and functionally connected to areas representing the currently attended information. This funneling process (bringing information from diverse sensory and frontal sources to contact a small parietal area where attended information is coordinated and combined) may be the converse of global broadcasting, from other proposals (Baars et al., 2021; Baars & Franklin, 2003; Dehaene & Changeux, 2011). The proposed system incorporates many principles from previous research and theorization and strives toward a resolution of the relation between consciousness and attention. (PsycInfo Database Record (c) 2025 APA, all rights reserved).