Overview
APS_MC (Meaning Without Neurons) is a research stream within the Agency–Process–Scale (APS) framework focused on the nature of cognition and meaning in living systems. It develops a unified account in which cognition is grounded in viability-oriented biological organisation, rather than in neural structures, representation, or subjective experience.
This stream extends the APS claim that living systems are inherently normatively organised: differences in the environment matter insofar as they contribute to or undermine persistence. On this basis, cognition is understood as the evaluation and modulation of such differences, a capacity that is distributed across life rather than confined to organisms with nervous systems.
Central Problem
Standard accounts of cognition often assume that:
- cognition requires a nervous system
- meaning depends on representation or internal models
- evaluation is tied to subjective experience
These assumptions create a discontinuity between simple and complex organisms, making it difficult to explain how cognition emerges or how it relates to basic biological organisation.
APS_MC addresses this by asking:
What must be true of living systems such that cognition can arise as a natural extension of their biological organisation?
APS Reframing of Cognition
Within APS, cognition is defined as:
evaluation of environmental differences relative to viability within constraint-closed biological organisation
This reframing has several consequences:
- cognition is not restricted to neural systems
- evaluation precedes representation
- meaning arises from functional relevance to persistence, not from symbolic content
Cognition is therefore a biological capacity, not a specialised mental property.
Meaning as Viability-Relevant Difference
In APS, meaning is not an abstract or representational relation. It is grounded in the fact that:
some differences in the environment make a difference to viability.
A stimulus, condition, or event is meaningful for a system when it:
- alters the system’s capacity to sustain persistence
- is incorporated into its regulatory processes
- participates in its ongoing biological organisation
Meaning is thus enacted, not encoded. It arises through the system’s activity, not through internal representations of an external world.
Distributed Cognition Across Life
APS_MC emphasises that cognition is distributed across biological systems, including:
- single cells responding to gradients
- plants coordinating growth and signalling
- microbial communities regulating collective behaviour
In each case, systems:
- detect differences
- evaluate their relevance
- modulate activity accordingly
These are not metaphorical descriptions, but instances of minimal cognition grounded in viability-oriented biological organisation.
Relation to Representation
APS does not deny that representational systems can exist, but it reinterprets their status.
Representation emerges only where systems exhibit:
- counterfactual depth
- the capacity to act relative to non-immediate conditions
- stability of evaluative patterns beyond current inputs
Even in such cases, representation remains:
functionally grounded in viability-oriented biological organisation, not a primary explanatory principle.
Thus, APS_MC situates representation as a derived and contingent feature, not a prerequisite for cognition.
Relation to Consciousness
APS_MC distinguishes cognition from consciousness:
- cognition = evaluation relative to viability
- consciousness = subjective experience associated with specific organisational configurations
All living systems exhibit cognition in minimal form, but:
consciousness is not required for cognition and remains empirically constrained.
This distinction prevents the conflation of:
- life
- cognition
- sentience
while preserving continuity across them.
Relation to APS_COG
APS_MC contributes to the broader APS account of cognition (APS_COG) by:
- grounding cognition in viability-oriented biological organisation
- extending cognition beyond neural systems
- providing a framework for understanding meaning as biological, not representational
It thus serves as a programmatic development within the larger theoretical account.
Developmental Scope
This research stream includes:
- conceptual clarification of cognition as biological evaluation
- analysis of non-neural cognition across organisms
- integration with empirical work in plant and microbial systems
- reinterpretation of representation and information in biological terms
As it develops, APS_MC may generate:
- criteria for identifying minimal cognition
- comparative frameworks across biological systems
- connections to philosophy of mind and cognitive science
Key Point
APS_MC shows that cognition and meaning arise from viability-oriented, constraint-closed biological organisation, making evaluation and sense-making continuous features of life rather than properties restricted to neural or representational systems.