The Problem of Mentalistic Language in Biology

Biology makes persistent use of terms such as biological agency, cognition, decision-making, purpose, and intelligence. These terms are often treated with suspicion. They appear to import human psychology into domains where no such psychology is present.

As a result, they are variously:

  • dismissed as metaphor
  • tolerated as heuristic shorthand
  • or elevated into claims about universal consciousness or sentience

These responses reflect a shared problem: the absence of a clear account of what these terms refer to in biological systems.

APS resolves this problem by grounding mentalistic language in biological organisation rather than psychology.

The APS Starting Point

APS begins with life, not mind.

More precisely, it begins with viability-oriented, constraint-closed biological organisation — the condition under which a system maintains and regenerates the constraints that sustain its own persistence.

From this condition follows normativity:

  • some states are better than others for the system
  • the system must act to maintain those states
  • failure results in loss of viability

This establishes evaluation as an objective feature of living systems.

Mentalistic terms, in APS, refer to aspects of this biological organisation.

The APS Hierarchy of Terms

APS distinguishes between organisational features required for life and those that emerge only in specific systems.

Agency — Viability-oriented, constraint-closed activity through which a system sustains its own persistence.
Status: Universal (defining feature of life)

Cognition — Evaluation of environmental differences relative to viability within constraint-closed biological organisation.
Status: Universal in living systems (in minimal form)

Intelligence — Effectiveness of problem-solving under viability constraints.
Status: Derived, scale- and system-dependent

Purpose — Organisation of activity toward continued viability.
Status: Intrinsic to all living systems

Decision-making / Preference — Differentiation between alternatives with distinct consequences for viability.
Status: Present wherever systems modulate activity relative to persistence

Sentience / Consciousness — Subjective experience associated with specific organisational configurations.
Status: Contingent, empirically constrained, not required for life

This hierarchy makes explicit that not all mentalistic terms refer to the same kind of phenomenon.

What APS Accepts

APS accepts mentalistic terms where they track real organisational features.

It affirms that:

  • living systems are agential
  • living systems exhibit cognition as evaluation relative to viability
  • living systems are normatively structured
  • biological processes are organised toward continued persistence

These are not metaphors. They are features of viability-oriented, constraint-closed biological organisation.

What APS Rejects

APS rejects three common misinterpretations:

  • Psychological projection — Attributing human-like inner states (beliefs, intentions, feelings) to systems without evidence
  • Conceptual collapse — Treating biological agency, cognition, and experience as interchangeable
  • Pan-mental inflation — Extending sentience or consciousness to all living systems without empirical support

In each case, the error arises from failing to distinguish biological organisation from experience.

What APS Reframes

APS does not eliminate mentalistic language. It reframes it.

  • Agency is not a property but the organised activity of living systems
  • Cognition is not representation but evaluation relative to viability
  • Intelligence is not general reasoning but effective regulation under constraints
  • Purpose is not intention but the organisation of activity toward persistence
  • Value is not subjective preference but intrinsic normativity

This reframing preserves the usefulness of these terms while removing their dependence on human psychology.

Organisation, Evaluation, and Experience

A central contribution of APS is the separation of three distinct domains:

  • constraint-closed biological organisation
  • normative evaluation relative to viability
  • subjective experience

Organisation is sufficient for biological agency.
Evaluation is sufficient for cognition.
Experience, where it occurs, is an additional feature requiring independent explanation.

Failure to maintain this distinction leads to the systematic confusion of biological regulation with sentience.

Why This Matters

Clarifying mentalistic terms allows biology to:

  • describe living systems without anthropomorphism
  • avoid reducing life to passive mechanism
  • maintain conceptual continuity between life and mind without collapse

It also provides a consistent grammar for integrating findings across:

  • physiology
  • development
  • behaviour
  • cognition

Without this clarity, biological explanation oscillates between:

  • eliminative reductionism
  • and unwarranted expansion of mental categories

APS provides a stable alternative.

The APS Position

APS affirms that:

  • all life is agential
  • all life is normatively organised
  • all life exhibits cognition as evaluation relative to viability within constraint-closed biological organisation

APS does not affirm that:

  • all life is sentient
  • evaluation implies experience
  • consciousness is a universal biological property

Sentience and consciousness remain:

  • empirically open
  • organisationally specific
  • not required for biological explanation at the level of life itself

Key Point

Mentalistic terms in biology do not describe hidden psychological states; they describe the organisational features of viability-oriented, constraint-closed systems. Distinguishing biological agency, cognition, and experience prevents conceptual collapse and stabilises biological explanation.