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G. T. Fechner (1848): Plants as sentient living beings
1Department of Social, Political and Cognitive Sciences, University of Siena, Siena, Italy.
Plant Signaling & Behavior
|February 18, 2026
Summary
Gustav Fechner
Area of Science:
- Plant sciences
- Psychophysics
- Philosophy of mind
Background:
- Gustav Theodor Fechner, founder of experimental psychophysics, also explored the "psychic life of plants" in his 1848 work, Nanna.
- Fechner's botanical research was historically dismissed as unscientific.
- Contemporary re-evaluation highlights Fechner's empirical basis and inductive reasoning.
Purpose of the Study:
- To re-examine Gustav Fechner's 1848 work, Nanna, oder über das Seelenleben der Pflanzen.
- To demonstrate how Fechner's ideas on plant sentience anticipate modern concepts of plant intelligence and communication.
- To propose Fechner's framework for reconceptualizing plant perception and intelligence.
Main Methods:
- Re-analysis of Fechner's historical arguments in Nanna.
- Inductive reasoning based on empirical observation of plant life.
- Comparative analysis of plant and animal cognition.
Main Results:
- Fechner's arguments for plant awareness are rooted in empirical observation and inductive reasoning.
- Fechner hypothesized that plants' immersion in environmental elements allows for intense sensory experience.
- Fechner suggested plant sentience may exceed human sensory intensity due to present-moment immersion.
Conclusions:
- Fechner's work offers a novel framework for understanding plant intelligence, learning, and communication.
- Fechner's perspective challenges the notion that sentience is solely dependent on neural complexity.
- Sentience may be an intrinsic property of all life, not just organisms with advanced nervous systems.
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