Nowadays, physicalism is arguably the received view on the nature of mental states. Among the arguments that have been provided in its favour, the inductive one seems to play a pivotal role in the debate. Leveraging the past success of materialistic science, the physicalist argues that a materialistic account of consciousness will eventually be provided, hence that physicalism is true. This article aims at evaluating whether this strategy can provide support for physicalism. According to the standard objection raised against the (...) inductive line of reasoning, the argument would beg the question by assuming some sort of metaphysical uniformity between consciousness and the rest of the natural domain. Here, I concede that there is a way to avoid this criticism. However, I argue that the argument still fails to support physicalism due to a structural problem of justification transmission. (shrink)

This paper compares tracking and phenomenal intentionality theories of intentionality with respect to the issue of naturalism. Tracking theories explicitly aim to naturalize intentionality, while phenomenal intentionality theories generally do not. It might seem that considerations of naturalism count in favor of tracking theories. We survey key considerations relevant to this claim, including some motivations for and objections to the two kinds of theories. We conclude by suggesting that naturalistic considerations may in fact support phenomenal intentionality theories over tracking theories.

In this précis I summarise the main ideas of my book Philosophy of Psychedelics. The book discusses philosophical issues arising from the therapeutic use of “classic” psychedelic drugs such as psilocybin and LSD. The book is organised around what I call the Comforting Delusion Objection to psychedelic therapy: the concern that this novel and promising treatment relies essentially on the induction of non-naturalistic metaphysical beliefs, rendering it epistemically objectionable. I begin the précis by summarizing material from chapters two and three (...) of the book, which review evidence for the therapeutic efficacy of psychedelics, and the facts about their clinical use that prompt the Comforting Delusion Objection. I then summarize materials from chapters four and five of the book, which argue that psychedelic therapy works neither by experience-independent processes of neuroplasticity, nor by inducing non-naturalistic metaphysical ideations, but by altering mental representations of the self. Next, I summarise the specific, speculative account of how this might work that is developed in chapters six and seven of the book. This account is based on the predictive processing theory of brain function and the self-binding theory of self-representation. Chapters eight and nine of the book argue, on the basis of this account, that psychedelic therapy can have significant epistemic and spiritual benefits that are compatible with a naturalistic worldview. I summarize this material, and then, finally, the overall conclusions about psychedelic therapy drawn in the tenth and final chapter of the book. (shrink)

Radical Enactivism holds that the best explanation of basic forms of cognition is provided without involving information of any sort. According to this view, the ability to perceive visual affordances should be accounted for in terms of extensional covariations between variables spanning the agent’s body and the environment. Contrary to Radical Enactivism, I argue that the intensional properties of cognition cannot be ignored, and that the way in which an agent represents the world has consequences on the explanation of basic (...) sensorimotor abilities. To support this claim, I show that the perception of visual affordances is not segregated from higher forms of cognition; rather, it is modulated by the agent’s ability to recognize the semantic identity of the visual target. Accordingly, since the semantic recognition of an object involves a way of representing it under a certain description, it can be inferred that the perception of visual affordances cannot be accounted for without considering the intensional properties of cognition. This poses an explanatory issue for Radical Enactivism. (shrink)

Great naturalist philosophers like David Armstrong, David Papineau, Jeagwon Kim, and others have argued that the best arguments for naturalism are based on Physical Causal Closure. P.C that is a premise in these arguments implies that only natural/physical causes are responsible for natural events and supernatural/non-physical causes cannot have any effective role in the natural universe. By adding some reasonable rules such as Ockham’s Razor or Eleatic Principle to P.C, they have concluded that there is no non-natural cause such as (...) God.Many theists, in the face of the physical causal closure, may accept it and see the relationship between God and the natural world not as causal but as something entirely different; as existential or necessary relation. But this view seems to have problems. First, it is passive because it simply accepts the basic premise of the naturalistic view, and secondly, it seems unacceptable from a theistic point of view to reduce the relationship between God and the world to existential or necessary relation and to eliminate the possibility of causal influence on natural things.In this paper, I will claim that P.C is not only against supernatural causation but is also against human agency and mental causation. To show this, first, I will present an argument against human mental causation based on P.C, and Then I will consider four different physicalist approaches that try to save mental causation. These approaches consist of 1) anomalous monism, 2) non-reductive physicalism, 3) over-determination, and 4) reductive physicalism.The first solution is the idea that Davidson came up with to solve the problem of mental causation. By criticizing type identity and reductionism, he first re-examines the issue of mental causation in a new form. Examining the first, I will show that this approach cannot save mental causation, and, in fact, mental causation will be rejected in this view. The second approach, although it hopes to maintain both mental causation and commitment to the physical closure, this article will show that it wouldn’t succeed in doing either. Although at first glance, acceptance of over-determination may seem like a better solution, I show that this solution has fundamental problems, including the fact that in this approach mental causality becomes redundant, without which physical causes will produce the same result. But without a doubt, the main and popular solution of naturalists will be the last, that is, reductionism. Reductionism in this approach distances itself from early reductionism and seeks to establish a token identity between mental and physical states. But this moderate reductionism also faces fundamental problems such as the hard problem of consciousness, intention, and human agency, which will reject the possibility of its success. I will show, therefore, that none of these approaches can solve the problem of P.C and mental causation.By criticizing all of them, I will show that P.C has an absurd consequence and cannot be a plausible premise in the argument for naturalism. Therefore, the best argument for naturalism will fail and cannot work against God. (shrink)

This dissertation argues that mental representation is identical to phenomenal consciousness, and everything else that appears to be both mental and a matter of representation is not genuine mental representation, but either in some way derived from mental representation, or a case of non-mental representation.