Spontaneous actions are preceded by brain signals that may sometimes be detected hundreds of milliseconds in advance of a subject's conscious intention to act. These signals have been claimed to reflect prior unconscious decisions, raising doubts about the causal role of conscious will. Murakami et al. (2014. Nat Neurosci 17: 1574–1582) have recently argued for a different interpretation. During a task in which rats spontaneously decided when to abort waiting, the authors recorded neurons in the secondary motor cortex. The neural (...) activity and relationship to action timing was parsimoniously explained using an integration-to-bound model, similar to those widely used to account for evidence-based decisions. In this model, the brain accumulates spontaneously occurring inputs voting for or against an action, but only commits to act once a certain threshold is crossed. The model explains how spontaneous decisions can be forecast (partially predicted) by neurons that reflect either the input or output of the integrator. It therefore presents an explicit hypothesis capable of rejecting the claim that such predictive signals imply unconscious decisions. We suggest that these results can inform the current debate on free will but must be considered with caution. (shrink)

The mental realm seems different to the physical realm; the mental is thought to be dependent on, yet distinct from the physical. But how, exactly, are the two realms supposed to be different, and what, exactly, creates the seemingly insurmountable juxtaposition between the mental and the physical? This review identifies and discusses five marks of the mental, features that set characteristically mental phenomena apart from the characteristically physical phenomena. These five marks (intentionality, consciousness, free will, teleology, and normativity) are not (...) presented as a set of features that define mentality. Rather, each of them is something we seem to associate with phenomena we consider mental, and each of them seems to be in tension with the physical view of reality in its own particular way. It is thus suggested how there is no single mind-body problem, but a set of distinct but interconnected problems. Each of these separate problems is analyzed, and their differences, similarities and connections are identified. This provides a useful basis for future theoretical work on psychology and philosophy of mind, that until now has too often suffered from unclarities, inadequacies, and conflations. (shrink)

Neuroscientists have located brain activity that prepares or encodes action plans before agents are aware of intending to act. On the basis of these findings and broader agency research, activity in these regions has been proposed as the neural realizers of practical intention. My aim in this paper is to evaluate the case for taking these neural states to be neural representations of intention. I draw on work in philosophy of action on the role and nature of practical intentions to (...) construct a framework of the functional profile of intentions fit for empirical investigation. With this framework, I turn to the broader empirical neuroscience literature on agency to assess these proposed neural representations of intention. I argue that while these neural states in some respects satisfy the functions of intention in planning agency prospective of action, their fit with the role of intention in action execution is not well supported. I close by offering a sketch of which experimental task features could aid in the search for the neural realizer of intention in action. (shrink)

Many Christian philosophers hold that moral responsibility is incompatible with causal determinism, a thesis known as incompatibilism. But there are good reasons for resisting this trend. To illustrate this, I first examine an innovative recent case for incompatibilism by a Christian philosopher, one that depends crucially on the claim that intuitions favor incompatibilism. I argue that the case is flawed in ways that should keep us from accepting its conclusions. I then argue for a shift in the way that this (...) issue is often approached, namely, that Christian philosophers should deemphasize the role of intuitions in illuminating this topic, and take pragmatic considerations concerning orthodoxy and potential empirical discoveries to favor a kind of agnosticism about the compatibility of determinism and responsibility. (shrink)

Kysymys vapaasta tahdosta on nyt ajankohtaisempi kuin koskaan. Voisi helposti kuvitella, että tämä muinainen filosofinen ongelma olisi jo saatu ratkaistua tai se olisi ainakin pois muodista mutta näin ei kuitenkaan ole käynyt. Viimeaikaisen analyyttisen filosofian piirissä siitä on kirjoitettu lähes loputtomiin. Viimeaikainen kiinnostus ei kuitenkaan rajoitu vain filosofian piiriin, vaan tahdonvapaudesta ja siihen liittyvistä teemoista on tehty myös erittäin kiinnostavaa empiiristä tutkimusta. Muutamat neurotieteen löydökset ovat tuottaneet varsin suuren määrän populaaritieteellistä kirjallisuutta ja lehtijuttuja, joissa raportoidaan toinen toistaan sensaatiomaisempia tuloksia siitä, (...) kuinka aivot tekevät päätökset puolestamme ja kuinka meillä ei voi olla vapaata tahtoa. Harvassa ovat kuitenkin ne filosofit, jotka olisivat vakuuttuneet neurotieteen nyt ratkaisseen tahdonvapauden ongelman. Filosofian, neurotieteen ja kognitiotieteen rajamaastoon onkin syntynyt laaja keskustelu siitä, miten tieteellisiä tuloksia tulisi tulkita, mitä ne tarkoittavat ja mikä niiden rooli debatissa tahdonvapaudesta oikeastaan on. Esittelen tässä artikkelissa viimeaikaista keskustelua tahdonvapaudesta juuri tässä tieteen ja filosofian rajamaastossa. Aluksi tarkastelen hieman itse tahdonvapauden käsitettä ja niitä ehtoja, joita sille on asetettu. Artikkelin jälkipuolisko puolestaan käsittelee neurotieteeseen ja psykologiaan vetoavia argumentteja tahdonvapautta vastaan ja esittelee lyhyesti joitakin näihin argumentteihin esitettyjä vastauksia. (shrink)