Cognitive control and consciousness in open biological systems.
Bio Systems May 1, 2025 DOI: 10.1016/j.biosystems.2025.105457 via PubMed
Summary
Cognition and conscious thought are integral to how biological systems control themselves to find and use meaningful information for survival. The development of key cognitive abilities in centralized nervous systems—decision-making with partial sensory information, learning and memory, and symbolic communication—can be categorized as distinct decision processes. Conscious thought arises from a control mechanism for speech production, known as the phonological loop, which provides feedback from motor to sensory cortex. This continuous loop updates working memory and gives humans an advanced layer of control through a sense of self, agency, and perception of time flow, defining distinct degrees of information fitness in evolution.
Study at a glance
| Characteristics | Theoretical or philosophical paper Peer reviewed |
|---|---|
| Citations | 5 |
| Key finding | Conscious thought arises from a control mechanism for speech production, the phonological loop, which provides a third type of information flowing into the sensory cortex and updates working memory. |
Abstract
Thermodynamically open biological systems not only sustain a life-supporting mutual relationship with their environment by exchanging matter and energy but also constantly seek information to navigate probabilistic changes in their surroundings. This work argues that cognition and conscious thought should not be viewed in isolation but rather as parts of an integral control of biological systems to identify and act upon meaningful, semantic information to sustain viability. Under this framework, the development of key cognitive control capacities in centralized nervous systems and the resulting behavior are categorized into distinct Markov decision processes: decision-making with partially observable sensory exteroceptive and interoceptive information, learning and memory, and symbolic communication. It is proposed that the state of conscious thought arises from a control mechanism for speech production resembling actuator control in engineered systems. Also known as the phonological loop, this feedback from the motor to the sensory cortex provides a third type of information flowing into the sensory cortex. The continuous, dissipative loop updates the fleeting working memory and provides humans with an advanced layer of control through a sense of self, agency and perception of flow in time. These capacities define distinct degrees of information fitness in the evolution of information-powered organisms.