In philosophy, panpsychism is the view that mind or a mind-like aspect is a fundamental and ubiquitous feature of reality. It has taken on a wide variety of forms. Contemporary academic proponents hold that sentience or subjective experience is ubiquitous, while distancing these qualities from complex human mental attributes; they ascribe a primitive form of mentality to entities at the fundamental level of physics but do not ascribe it to most aggregates, such as rocks or buildings. On the other hand, some historical theorists ascribed attributes like life or spirits to all entities.
Panpsychism is one of the oldest philosophical theories, and has been ascribed to philosophers like Thales, Parmenides, Plato, Averroes, Spinoza, Leibniz, and William James. Panpsychism can also be seen in ancient philosophies such as Stoicism, Taoism, Vedanta and Mahayana Buddhism. During the 19th century, panpsychism was the default theory in philosophy of mind, but it saw a decline during the middle years of the 20th century with the rise of logical positivism. The recent interest in the hard problem of consciousness has revived interest in panpsychism.
- 1 Etymology
- 2 Terminology
- 3 History
- 4 Arguments for
- 5 Arguments against
- 6 In relation to other metaphysical positions
- 7 Variants
- 8 In eastern philosophy
- 9 See also
- 10 Notes
- 11 Further reading
- 12 External links
The term "panpsychism" has its origins with the Greek term pan (πᾶν : "all, everything, whole") and psyche (ψυχή: "soul, mind") as the unifying center of the mental life of us humans and other living creatures.":1 Psyche comes from the Greek word ψύχω (psukhō, "I blow") and can mean life, soul, mind, spirit, heart and 'life-breath'. The use of psyche is controversial due to it being synonymous with soul, a term usually taken to have some sort of supernatural quality; more common terms now found in the literature include mind, mental properties, mental aspect, and experience.
The philosopher David Chalmers, who has explored panpsychism as a viable theory, distinguishes between microphenomenal experiences (the experiences of microphysical entities) and macrophenomenal experiences (the experiences of larger entities like humans).
Early forms of panpsychism can be found in pre-modern animistic beliefs in religions such as Shinto, Taoism, Paganism and shamanism. Panpsychist views are also a staple theme in pre-Socratic Greek philosophy. According to Aristotle, Thales (c. 624 – 545 BCE) the first Greek philosopher, posited a theory which held "that everything is full of gods." Thales believed that this was demonstrated by magnets. This has been interpreted as a panpsychist doctrine. Other Greek thinkers that have been associated with panpsychism include Anaxagoras (who saw the underlying principle or arche as nous or mind), Anaximenes (who saw the arche as pneuma or spirit) and Heraclitus (who said "The thinking faculty is common to all").
Plato argues for panpsychism in his Sophist, in which he writes that all things participate in the form of Being and that it must have a psychic aspect of mind and soul (psyche). In the Philebus and Timaeus, Plato argues for the idea of a world soul or anima mundi. According to Plato:
This world is indeed a living being endowed with a soul and intelligence ... a single visible living entity containing all other living entities, which by their nature are all related.
Stoicism developed a cosmology which held that the natural world was infused with a divine fiery essence called Pneuma, which was directed by a universal intelligence called Logos. The relationship of the individual Logos of beings with the universal Logos was a central concern of the Roman Stoic Marcus Aurelius. The Metaphysics of Stoicism was based on Hellenistic philosophies such as Neoplatonism and Gnosticism also made use of the Platonic idea of the Anima mundi.
After the closing of Plato's Academy by the Emperor Justinian in 529 CE, Neoplatonism declined. Though there were mediaeval Christian thinkers who ventured what might be called panpsychist ideas (such as John Scotus Eriugena), it was not a dominant strain in Christian thought. In the Italian Renaissance, however, panpsychism enjoyed something of an intellectual revival, in the thought of figures such as Gerolamo Cardano, Bernardino Telesio, Francesco Patrizi, Giordano Bruno, and Tommaso Campanella. Cardano argued for the view that soul or anima was a fundamental part of the world and Patrizi introduced the actual term "panpsychism" into the philosophical vocabulary. According to Giordano Bruno: "There is nothing that does not possess a soul and that has no vital principle." Platonist ideas like the anima mundi also resurfaced in the work of esoteric thinkers like Paracelsus, Robert Fludd and Cornelius Agrippa.
In the 17th century, two rationalists can be said to be panpsychists, Baruch Spinoza and Gottfried Leibniz. In Spinoza's monism, the one single infinite and eternal substance is "God, or Nature" (Deus sive Natura) which has the aspects of mind (thought) and matter (extension). Leibniz' view is that there are an infinite number of absolutely simple mental substances called monads which make up the fundamental structure of the universe. While it has been said that the idealist philosophy of George Berkeley is also a form of pure panpsychism and that "idealists are panspychists by default", it has also been argued[by whom?] that such arguments conflate mentally-constructed phenomena with minds themselves. Berkeley rejected panpsychism and posited that the physical world exists only in the experiences minds have of it, while restricting minds to humans and certain other specific agents.
In the 19th century, panpsychism was at its zenith. Philosophers like Arthur Schopenhauer, C.S Peirce, Josiah Royce, William James, Eduard von Hartmann, F.C.S. Schiller, Ernst Haeckel and William Kingdon Clifford as well as psychologists like Gustav Fechner, Wilhelm Wundt and Rudolf Hermann Lotze all promoted panpsychist ideas.
Arthur Schopenhauer argued for a two-sided view of reality which was both Will and Representation (Vorstellung). According to Schopenhauer: "All ostensible mind can be attributed to matter, but all matter can likewise be attributed to mind".
Josiah Royce, the leading American absolute idealist held that reality was a "world self", a conscious being that comprised everything, though he didn't necessarily attribute mental properties to the smallest constituents of mentalistic "systems". The American pragmatist philosopher Charles Sanders Peirce espoused a sort of Psycho-physical Monism in which the universe was suffused with mind which he associated with spontaneity and freedom. Following Pierce, William James also espoused a form of panpsychism. In his lecture notes, James wrote:
Our only intelligible notion of an object in itself is that it should be an object for itself, and this lands us in panpsychism and a belief that our physical perceptions are effects on us of 'psychical' realities
In 1893, Paul Carus proposed his own philosophy similar to panpsychism known as 'panbiotism', which he defined as "everything is fraught with life; it contains life; it has the ability to live.":149
In the 20th century, the most significant proponent of the panpsychist view is arguably Alfred North Whitehead (1861–1947). Whitehead's ontology saw the basic nature of the world as made up of events and the process of their creation and extinction. These elementary events (which he called occasions) are in part mental. According to Whitehead: "we should conceive mental operations as among the factors which make up the constitution of nature." Bertrand Russell's neutral monist views also tended towards panpsychism.
The psychologist Carl Jung, who is known for his idea of the collective unconscious, wrote that "psyche and matter are contained in one and the same world, and moreover are in continuous contact with one another", and that it was probable that "psyche and matter are two different aspects of one and the same thing". The psychologists James Ward and Charles Augustus Strong also endorsed variants of panpsychism.:158
The geneticist Sewall Wright endorsed a version of panpsychism. He believed that the birth of consciousness was not due to a mysterious property of increasing complexity, but rather an inherent property, therefore implying these properties were in the most elementary particles.
The panpsychist doctrine has recently seen a resurgence in the philosophy of mind. Prominent defenders in the United States include Christian de Quincey, Leopold Stubenberg, David Ray Griffin, and David Skrbina. In 1990, the physicist David Bohm published a paper named "A New theory of the relationship of mind and matter" promoting a panpsychist theory of consciousness based on Bohm's interpretation of quantum mechanics. Bohm has a number of followers among philosophers of mind both in United States (e.g. Quentin Smith) and internationally (e.g. Paavo Pylkkänen). In the United Kingdom the case for panpsychism has been made in recent decades by Galen Strawson, Gregg Rosenberg, Timothy Sprigge, and Philip Goff. The doctrine has also been applied in the field of environmental philosophy through the work of Australian philosopher Freya Mathews.
In the philosophy of mind, panpsychism is one possible solution to the so-called hard problem of consciousness. David Chalmers, who formulated the hard problem of consciousness, has argued panpsychism is one of multiple viable theories of consciousness in The Conscious Mind (1996) and subsequent work.
The integrated information theory of consciousness (IIT), proposed by the neuroscientist and psychiatrist Giulio Tononi in 2004 and since adopted by other neuroscientists such as Christof Koch, postulates that consciousness is widespread and can be found even in some simple systems. However, it does not hold that all systems are conscious, leading Tononi and Koch to state that IIT incorporates some elements of panpsychism but not others. Koch has referred to IIT as a "scientifically refined version" of panpsychism.
Alleged problems with emergentism are often cited by panpsychists as grounds to reject physicalism. This argument can be traced back to the psychologist Wilhelm Wundt, who applied the phrase ex nihilo nihil fit ("nothing comes from nothing") in this context – saying thus the mental cannot arise from the non-mental.
In the article "Panpsychism" in his 1979 book Mortal Questions, Thomas Nagel defines panpsychism as, "the view that the basic physical constituents of the universe have mental properties,":181 effectively claiming[original research?] the panpsychist thesis to be a type of property dualism. Nagel argues that panpsychism follows from four premises:
- (1) "Material composition", or commitment to materialism.
- (2) "Non-reductionism", or the view that mental properties cannot be reduced to physical properties.
- (3) "Realism" about mental properties.
- (4) "Non-emergence", or the view that "there are no truly emergent properties of complex systems".
Nagel notes that new physical properties are discovered through explanatory inference from known physical properties; following a similar process, mental properties would seem to derive from properties of matter not included under the label of "physical properties", and so they must be additional properties of matter. Also, he argues that, "the demand for an account of how mental states necessarily appear in physical organisms cannot be satisfied by the discovery of uniform correlations between mental states and physical brain states.":187 Furthermore, Nagel argues mental states are real by appealing to the inexplicability of subjective experience, or qualia, by physical means. Nagel ties panpsychism to the failure of emergentism to deal with metaphysical relation: "There are no truly emergent properties of complex systems. All properties of complex systems that are not relations between it and something else derive from the properties of its constituents and their effects on each other when so combined." Thus he denies that mental properties can arise out of complex relationships between physical matter.
Critics of panpsychism could[original research?] deny proposition (2) of Nagel's argument. If mental properties are reduced to physical properties of a physical system, then it does not follow that all matter has mental properties: it is in virtue of the structural or functional organization of the physical system that the system can be said to have a mind, not simply that it is made of matter. This is the common functionalist position. This view allows for certain man-made systems that are properly organized, such as some computers, to be said to have minds. This may cause problems when (4) is taken into account. Also, qualia seem to undermine the reduction of mental properties to brain properties.
The most popular empirically based argument for panpsychism stems from Darwinism and is a form of the non-emergence argument. This argument begins with the assumption that evolution is a process that creates complex systems out of pre-existing properties but yet cannot make "entirely novel" properties. William Kingdon Clifford argued that:
[...] we cannot suppose that so enormous a jump from one creature to another should have occurred at any point in the process of evolution as the introduction of a fact entirely different and absolutely separate from the physical fact. It is impossible for anybody to point out the particular place in the line of descent where that event can be supposed to have taken place. The only thing that we can come to, if we accept the doctrine of evolution at all, is that even in the very lowest organism, even in the Amoeba which swims about in our own blood, there is something or other, inconceivably simple to us, which is of the same nature with our own consciousness [...]
Philosophers such as Alfred North Whitehead have drawn on the indeterminacy observed by quantum physics to defend panpsychism. A similar line of argument has been repeated subsequently by a number of thinkers including the physicist David Bohm, anesthesiologist Stuart Hameroff and philosophers such as Quentin Smith, Paavo Pylkkänen, and Shan Gao. The advocates of panpsychist quantum consciousness theories see quantum indeterminacy and informational but non-causal relations between quantum elements as the key to explaining consciousness. This approach has also been taken by Michael Lockwood (1991).
These arguments are based on the idea that everything must have an intrinsic nature. They argue that while the objects studied by physics are described in a dispositional way, these dispositions must be based on some non-dispositional intrinsic attributes, which Whitehead called the "mysterious reality in the background, intrinsically unknowable". While we have no way of knowing what these intrinsic attributes are like, we can know the intrinsic nature of conscious experience which possesses irreducible and intrinsic characteristics. Arthur Schopenhauer argued that while the world appears to us as representation, there must be 'an object that grounds' representation, which he called the 'inner essence' (das innere Wesen) and 'natural force' (Naturkraft), which lies outside of what our understanding perceives as natural law.
Galen Strawson has called his form of panpsychism "realistic physicalism", arguing that "the experiential considered specifically as such – the portion of reality we have to do with when we consider experiences specifically and solely in respect of the experiential character they have for those who have them as they have them – that 'just is' physical".
Academics such as Roger Penrose (1989), John Searle (1991), Thomas Nagel (1979, 1986, 1999) and Noam Chomsky (1999), while not all advocates of panpsychism, have said that a revolutionary change in physics may be needed to solve the problem of consciousness.
One criticism of panpsychism is that it cannot be empirically tested. A related criticism is what seems to many to be the theory's bizarre nature. John Searle states that panpsychism is an "absurd view" and that thermostats lack "enough structure even to be a remote candidate for consciousness" (Searle, 1997, p. 48).
Some[who?] have argued that the only properties shared by all qualia are that they are not precisely describable, and thus are of indeterminate meaning within any philosophy which relies upon precise definition according to these critics (that is, it tends to presuppose a definition for mentality without describing it in any real detail). The need to define better the terms used within the thesis of panpsychism is recognized by panpsychist David Skrbina,:15 and he resorts to asserting some sort of hierarchy of mental terms to be used. Thus only one fundamental aspect of mind is said to be present in all matter, namely, subjective experience.
The panpsychist[who?] answers both these challenges in the same way: we already know what qualia are through direct, introspective apprehension; and we likewise know what conscious mentality is by virtue of being conscious. For someone like Alfred North Whitehead, third-person description takes second place to the intimate connection between every entity and every other which is, he says, the very fabric of reality. To take a mere description as having primary reality is to commit the "fallacy of misplaced concreteness".
Contemporary panpsychists separate the phenomenal, non-cognitive aspects of consciousness—qualia or subjective experience, the essence of the hard problem of consciousness—from cognition. Nevertheless, by placing subjective experience as the intrinsic nature of the physical world, they hope to avoid the problem of mental causation. However, Robert Howell has argued that all the causal functions are still accounted for dispositionally (i.e., in terms of the behaviors described by science), leaving phenomenality causally inert. He concludes: "This leaves us once again with epiphenomenal qualia, only in a very surprising place."
In relation to other metaphysical positions
Panpsychism can be understood as related to a number of other metaphysical positions.
Panpsychism agrees with idealism that in a sense everything is mental, but whereas idealism treats most things as mental content or ideas, panpsychism treats them as mind-like, in some sense, and as having their own reality. Also, in contrast to many forms of idealism, it holds that for all minds, there is a single, external, spatio-temporal world, which is not just ideas in a divine mind. Panpsychism is thus a form of realism.
Dualism and dual aspect theory
Panpsychists and dualists agree that mental properties cannot be reduced to physical properties. The difference is that dualists consider mental and physical properties to belong to different categories with virtually nothing in common (for instance, Descartes' characterisation of matter and mind as "extension" and "thought"), whereas panpsychists view physical properties as the external, quantitative description of mental properties. This distinction also separates dual aspect theory from panpsychism: although dual aspect theorists can agree with panpsychists that everything has some mental properties, they also hold that everything has some physical properties, whereas panpsychists hold that physical properties are mental properties.
There are varieties of monism that don't presuppose (like materialism and idealism do) that mind and matter are fundamentally separable. An example is neutral monism first introduced by Spinoza and later propounded by William James and Bertrand Russell. Neutral monism is often coupled with dual aspect theory which maintains that mental and physical are two perspectives on a reality that is neither mental nor physical. Panpsychism, on the other hand, holds that the physical simply is the mental.
Physicalism and materialism
Panpsychism encompasses many theories, united by the notion that consciousness is ubiquitous; these can in principle be reductive materialist, dualist, or something else. Galen Strawson maintains that panpsychism is a form of physicalism, on his view the only viable form. On the other hand, David Chalmers describes panpsychism as an alternative to both materialism and dualism. Philip Goff similarly describes panpsychism as an alternative to both physicalism and substance dualism.
Panpsychism is incompatible with emergentism. In general, all theories of consciousness must fall under one or the other umbrella; they must hold that consciousness is present at a fundamental level of reality (panpsychism) or that it emerges higher up (emergentism).
Animism and hylozoism
Panpsychism is distinct from animism or hylozoism, which hold that all things have a soul or are alive, respectively. Gustav Theodor Fechner claimed in "Nanna" and "Zend-Avesta" that the Earth is a living organism whose parts are the people, the animals and the plants.
Panpsychism is related to but distinct from the holistic view that the whole universe is an organism that possesses a mind ("cosmic consciousness" or "universal consciousness"). This latter view is shared by some forms of religious thought such as theosophy, pantheism, cosmotheism, non-dualism, new age thought and panentheism. The hundredth monkey effect exemplifies the threshold for this applied cosmic consciousness.[clarification needed] The Tiantai Buddhist view is that "when one attains it, all attain it".:38[clarification needed]
Hylopathism argues for a similarly universal attribution of sentience to matter. Few writers would advocate a hylopathic materialism, although the idea is not new; it has been formulated as "whatever underlies consciousness in a material sense, i.e., whatever it is about the brain that gives rise to consciousness, must necessarily be present to some degree in any other material thing". A compound state of mind does not consist of compounded psychic atoms. The concept of awareness "being in itself" allows for the idea of self-aware matter. Attempts have been made to conceptualize this primitive level of existence prior to associative learning and memory. In the way that the collection of self-aware matter constitutes a cognitive being, the collection of cognitive beings as a conglomerate entity, reﬂects panpsychism. Consciousness was not "nascent" but emergent due to a lack of abandon during the evolution of material awareness.
Similar ideas have been attributed to Australian philosopher David Chalmers, who argues that consciousness is a fundamental feature of the universe, and which he also refers to as the First Datum in the study of the mind.
In the practice of non-reductionism this[which?] feature may not be attributable to any base monad but instead radically emergent on the level of physical complexity at which it demonstrates itself. Complex elegance is the further development of awareness that is self-aware. This we can call "post-intelligence" where "intelligence" is simple processing. The element of superiority might be that the post-intelligence is proto-experiential. These phenomenal properties are called "the internal aspects of information".:162–170
The form of panpsychism under discussion in the contemporary literature is more specifically known as panexperientialism, the view that conscious experience is present everywhere at a fundamental level. Panexperientialism can be contrasted with pancognitivism, the view that thought is present everywhere at a fundamental level, a view which had some historical advocates but has not garnered present-day academic adherents; as such contemporary panpsychists do not believe microphysical entities have complex mental states like beliefs, desires, fears, and so forth.
Panexperientialism is associated with the philosophies of, among others, Charles Hartshorne and Alfred North Whitehead, although the term itself was invented by David Ray Griffin in order to distinguish the process philosophical view from other varieties of panpsychism. The ecological phenomenology developed in the writings of the American cultural ecologist and philosopher, David Abram, is often described[by whom?] as a form of panexperientialism, as is the "poetic biology" developed by Abram's close associate, the German biologist Andreas Weber.
Whitehead's metaphysics incorporated a scientific worldview similar to Einstein's theory of relativity into the development of his philosophical system. His process philosophy argues that the fundamental elements of the universe are "occasions of experience," which can together create something as complex as a human being. This experience is not consciousness; there is no mind-body duality under this system, since mind is seen as a particularly developed kind of experience. Whitehead was not a subjective idealist, and while his occasions of experience (or "actual occasions") resemble Leibniz's monads, they are described as constitutively interrelated. He embraced panentheism, with God encompassing all occasions of experience and yet still transcending them. Whitehead believed that these occasions of experience are the smallest element in the universe—even smaller than subatomic particles. Building off Whitehead's work, process philosopher Michel Weber argues for a pancreativism.
Cosmopsychism is the theory that the cosmos is a proper whole, a unified object that is ontologically prior to its parts. Proponents of cosmopsychism claim that the cosmos as a whole is the fundamental level of reality and that it instantiates consciousness, which is how the view differs from panpsychism, where the claim is usually that the smallest level of reality is fundamental and instantiates consciousness. Accordingly, human consciousness, for example, is merely derivative from the cosmic consciousness.
In eastern philosophy
According to Graham Parkes: "Most of traditional Chinese, Japanese and Korean philosophy would qualify as panpsychist in nature. For the philosophical schools best known in the west — Neo-confucianism and Japanese Buddhism – the world is a dynamic force field of energies known as qi or bussho (Buddha nature) and classifiable in western terms as psychophysical." According to Advaita Vedanta, the non-dualistic school of Hinduism, Brahman is the underlying consciousness that is the foundation of all reality.
East Asian Buddhism
According to D. S. Clarke, panpsychist and panexperientialist aspects can be found in the Huayan and Tiantai (Jpn. Tendai) Buddhist doctrines of Buddha nature, which was often attributed to inanimate objects such as lotus flowers and mountains.:39 Tiantai patriarch Zhanran argued that "even non-sentient beings have Buddha nature."
Who, then, is "animate" and who "inanimate"? Within the assembly of the Lotus, all are present without division. In the case of grass, trees and the soil...whether they merely lift their feet or energetically traverse the long path, they will all reach Nirvana.
According to the 9th-century Shingon Buddhist thinker Kukai, the Dharmakaya is nothing other than the physical universe and natural objects like rocks and stones are included as part of the supreme embodiment of the Buddha. The Soto Zen master Dogen also argued for the universality of Buddha nature. According to Dogen, "fences, walls, tiles, and pebbles" are also "mind" (心,shin). Dogen also argued that "insentient beings expound the teachings" and that the words of the eternal Buddha "are engraved on trees and on rocks . . . in fields and in villages". This is the message of his "Mountains and Waters Sutra" (Sansui kyô).
According to a common misunderstanding, in the Buddhist Dzogchen tradition, particularly Dzogchen Semde or "mind series" the principal text of which is the Kulayarāja Tantra, there is nothing which is non-sentient, i.e. everything is sentient. Moreover, two of the English scholars who opened the discourse of the Bardo literature of the Nyingma Dzogchen tradition, Evans-Wentz & Jung (1954, 2000: p. 10) specifically with their partial translation and commentary of the Bardo Thodol into the English language write of the "One Mind" (Tibetan: sems nyid gcig; Sanskrit: *ekacittatva; *ekacittata; where * denotes a possible Sanskrit back-formation) thus:
The One Mind, as Reality, is the Heart which pulsates for ever, sending forth purified the blood-streams of existence, and taking them back again; the Great Breath, the Inscrutable Brahman, the Eternally Unveiled Mystery of the Mysteries of Antiquity, the Goal of all Pilgrimages, the End of all Existence.
It should be borne in mind, that Evans-Wentz never studied the Tibetan language and that the lama who did the main translation work for him was of the Gelukpa sect and is not known to have actually studied or practiced Dzogchen.
According to the translation with commentary, "Self-Liberation Through Seeing with Naked Awareness", by John Myrdhin Reynolds, the phrase, "It is the single nature of mind which encompasses all of Samsara and Nirvana," occurs only once in the text and it refers not to "some sort of Neo-Platonic hypostasis, a universal Nous, of which all individual minds are but fragments or appendages", but to the teaching that, "whether one finds oneself in the state of Samsara or in the state of Nirvana, it is the nature of the mind which reflects with awareness all experiences, no matter what may be their nature." This can be found in Appendix I, on pages 80–81. Reynolds elucidates further with the analogy of a mirror. To say that a single mirror can reflect ugliness or beauty, does not constitute an allegation that all ugliness and beauty is one single mirror.
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- Walter Yeeling Evans-Wentz, Carl Gustav Jung (1954, 2000). The Tibetan book of the great liberation, or, The method of realizing nirvāṇa through knowing the mind. Oxford University Press US, 2000. ISBN 0-19-513315-3, ISBN 978-0-19-513315-8. Source:  (accessed: Sunday March 7, 2010)
- Clarke, D.S. (2004). Panpsychism: Past and Recent Selected Readings. State University of New York Press. ISBN 0-7914-6132-7.
- Skrbina, David (2005). Panpsychism in the West. The MIT Press. ISBN 978-0-262-69351-6.
- Skrbina, David, ed. (2009). Mind That Abides: Panpsychism in the New Millennium. John Benjamins.
- Ells, Peter (2011). Panpsychism: The Philosophy of the Sensuous Cosmos. O Books. ISBN 1-84694-505-4.
- Michel Weber and Anderson Weekes (eds.), Process Approaches to Consciousness in Psychology, Neuroscience, and Philosophy of Mind (Whitehead Psychology Nexus Studies II), Albany, New York, State University of New York Press, 2009.
- Michel Weber and Pierfrancesco Basile (eds.), Subjectivity, Process, and Rationality, Frankfurt/Lancaster, Ontos Verlag, 2006
|Wikisource has the text of the 1913 Catholic Encyclopedia article Panpsychism.|
- List of online classic papers on panpsychism
- Online papers on panpsychism, by various authors, compiled by David Chalmers
- Internet Encyclopedia of Philosophy – Panpsychism
- Stanford Encyclopedia of Philosophy – Panpsychism
- consciousentities.com – Philosophical Deadends – Panpsychism
- panpsychism.net Panpsychism and Pantheism (a good introduction by Ken Van Cleve)
- The Center for Process Studies (Whitehead and Panexperientialism)
- Panexperientialism Blog
- The Panpsychist Society
- The Metaphysics of Panpsychism
- Popper's Flawed Critique of Panpsychism (Neuroself Article)