Thesis (MA)--Stellenbosch University, 2014.

Benjamin Libet’s work paved the way for the neuroscientific study of free will. Other scientists have praised this research as groundbreaking. In philosophy, the reception has been more negative, often even dismissive. First, I will propose a diagnosis of this striking discrepancy. I will suggest that the experiments seem irrelevant, from the perspective of philosophy, due to the way in which they operationalize free will. In particular, I will argue that this operational definition does not capture free will properly and (...) that it is based on a false dichotomy between internal and external causes. However, I will also suggest that this problem could be overcome, as there are no obvious obstacles to an operationalization of free will that is in accord with the philosophical conception of free will. (shrink)

While other philosophers have pointed out that Libet's experiment is compatible with compatibilist free will and also with weak libertarian free will, this article argues that it is even compatible with strong libertarian free will (SLF), \ie a person's ability to initiate causal processes. Contrary to what Libet suggested, the actions in the experiment were motivated by urges. It is in accordance with SLF that the urges had preceding unconcious causes. Furthermore, Libet's observation that vetoing is possible confirmes SLF.

Research Articles Michael S. Moore, Social Philosophy and Policy, FirstView Article.

Benjamin Libet's empirical challenge to free will has received a great deal of attention and criticism. A standard line of response has emerged that many take to be decisive against Libet's challenge. In the first part of this paper, I will argue that this standard response fails to put the challenge to rest. It fails, in particular, to address a recent follow-up experiment that raises a similar worry about free will (Soon, Brass, Heinze, & Haynes, 2008). In the second part, (...) however, I will argue that we can altogether avoid Libet-style challenges if we adopt a traditional compatibilist account of free will. In the final section, I will briefly explain why there is good and independent reason to think about free will in this way. (shrink)

In this contribution we will explore some of the implications of the vision of Ambient Intelligence (AmI) for law and legal philosophy. AmI creates an environment that monitors and anticipates human behaviour with the aim of customised adaptation of the environment to a person’s inferred preferences. Such an environment depends on distributed human and non-human intelligence that raises a host of unsettling questions around causality, subjectivity, agency and (criminal) liability. After discussing the vision of AmI we will present relevant research (...) in the field of philosophy of technology, inspired by the post-phenomenological position taken by Don Ihde and the constructivist realism of Bruno Latour. We will posit the need to conceptualise technological normativity in comparison with legal normativity, claiming that this is necessary to develop democratic accountability for the implications of emerging technologies like AmI. Lastly we will investigate to what extent technological devices and infrastructures can and should be used to achieve compliance with the criminal law, and we will discuss some of the implications of non-human distributed intelligence for criminal liability. (shrink)

This article describes three experiments that would advance our understanding of the import of data already generated by scientific work on free will and related issues. All three can be conducted with existing technology. The first concerns how reliable a predictor of behavior a certain segment of type I and type II RPs is. The second focuses on the timing of conscious experiences in Libet-style studies. The third concerns the effectiveness of conscious implementation intentions. The discussion of first two experiments (...) highlights some important problems with certain inferences made on the basis of existing data in scientific work on free will. The discussion of the third calls attention to powerful evidence that conscious intentions sometimes are among the causes of corresponding actions. This evidence has been largely ignored in the literature on free will. (shrink)

A commentary on articles by Klein, Pockett, and Trevena and Miller, in this issue, is given. Average shift in the point of subjective equality , calculated by Klein on Libet's data, and corresponding change in mean shift, calculated by Libet et al. , may be “corrected,” taking as a reference point the end of the minimum train duration. Values obtained, if significant, indicate a latency for conscious sensation of the skin stimulus of at least 230 ms. Pockett's main conclusions are (...) favored, but her explanation of peripheral–lemniscal couplings is found to be unconvincing. Trevena and Miller's article unsuccessfully tries to rescue a dualist interactionist view. Libet's method of timing intentions is thoroughly criticized. (shrink)

I want to explore one small corner of the concept of mental causality. It’s the corner where discussions about mind-body interactions and epiphenomenalism take place. My basic contention is that these discussions are framed in the wrong terms because they are infected by a mind-body dualism which defines the question of mental causality in a classic or standard way: How does a mental event cause my body to do what it does? Setting the question in this way has consequences for (...) ongoing interdisciplinary (psychological, neuroscientific, and philosophical) discussions of mental causation, as well as free will, and for our understanding of what we mean by a sense of agency for action. These concepts, in turn, have much to do with our understanding of what goes wrong in certain instances of psychopathology. I’ll try to get to this issue in the final part of my paper. Let me first set the historical scene of what I am calling this standard way of understanding the problem of mental causality. (shrink)

According to unconscious perception hypothesis (UP), mental states of the same fundamental kind as ordinary conscious seeing can occur unconsciously. The proponents of UP often support it with empirical evidence for a more specific hypothesis, according to which colours can be seen unconsciously (UPC). However, UPC is a general claim that admits of many interpretations. The main aim of this paper is to determine which of them is the most plausible. To this end, I investigate how adopting various conceptions of (...) colour and perceptual phenomenal character affects UPC’s resilience to objections. This brings me to the conclusion that the most plausible reading of UPC is the one according to which the phenomenal character of colour perception (i) is constituted by colours qua primitive mind-independent qualities of the environment and (ii) is not essentially tied to consciousness. My conclusion not only identifies the most plausible interpretation of UPC, but also highlights and supports an unorthodox version of the relational theory of perception, which is a perfectly viable yet so far overlooked stance in the debate about unconscious perception. (shrink)

For almost half a century dual-stream advocates have vigorously defended the view that there are two functionally specialized cortical streams of visual processing originating in the primary visual cortex: a ventral, perception-related ‘conscious’ stream and a dorsal, action-related ‘unconscious’ stream. They furthermore maintain that the perceptual and memory systems in the ventral stream are relatively shielded from the action system in the dorsal stream. In recent years, this view has come under scrutiny. Evidence points to two overlapping action pathways: a (...) dorso-dorsal pathway that calculates features of the object to be acted on, and a ventro-dorsal pathway that transmits stored information about skilled object use from the ventral stream to the dorso-dorsal pathway. This evidence suggests that stored information may exert significantly more influence on visually guided action than hitherto assumed. I argue that this, in turn, supports the notion of skilled automatic action that is nonetheless agential. My focus here will be on actions influenced by implicit biases (stereotypes/prejudices). Action that is biased in this way, I argue, is in an important sense intentional and agential. (shrink)

Experimental design is one aspect of a scientific method. A well-designed, properly conducted experiment aims to control variables in order to isolate and manipulate causal effects and thereby maximize internal validity, support causal inferences, and guarantee reliable results. Traditionally employed in the natural sciences, experimental design has become an important part of research in the social and behavioral sciences. Experimental methods are also endorsed as the most reliable guides to policy effectiveness. Through a discussion of some of the central concepts (...) associated with experimental design, including controlled variation and randomization, this chapter will provide a summary of key ethical issues that tend to arise in experimental contexts. In addition, by exploring assumptions about the nature of causation and by analyzing features of causal relationships, systems, and inferences in social contexts, this chapter will summarize the ways in which experimental design can undermine the integrity of not only social and behavioral research but policies implemented on the basis of such research. (shrink)

Researchers in artificial intelligence and robotics often include a timeline stretching into the future in which they predict the convergence between human and artificial intelligence. Ray Kurzweil, for example, predicts that in a mere 100 years humans and intelligent machines will become indistinguishable from one another, both ceasing to have permanent corporeal forms. This article argues that the one thing we can know for sure about the future is that when it arrives, it will be different from what we imagined. (...) The cultural work that predictions like Kurzweil’s perform is less to prognosticate the future than to shape our understanding of what it means to be human in the present. Working from the ‘sense-think-act’ paradigm foundational to work in artificial intelligence and robotics, this article argues that predictions in all three areas feed back to affect how the human is envisioned in the present. The reconfigurations these predictions bring about are to downplay consciousness, embodied cognition, and evolutionary inertia. The article concludes by critically evaluating contemporary resistances to the posthuman, especially in the writings of Rodney Brooks and Francis Fukuyama. (shrink)

This paper provides articulates a non-epiphenomenal, libertarian kind of free will—a kind of free will that’s incompatible with both determinism and epiphenomenalism—and responds to scientific arguments against the existence of this sort of freedom. In other words, the paper argues that we don’t have any good empirical scientific reason to believe that human beings don’t possess a non-epiphenomenal, libertarian sort of free will.

This paper considers the empirical evidence that we currently have for various kinds of determinism that might be relevant to the thesis that human beings possess libertarian free will. Libertarianism requires a very strong version of indeterminism, so it can be refuted not just by universal determinism, but by some much weaker theses as well. However, it is argued that at present, we have no good reason to believe even these weak deterministic views and, hence, no good reason—at least from (...) this quarter—to doubt that we are libertarian free. In particular, the paper responds to various arguments for neural and psychological determinism, arguments based on the work of people like Honderich, Tegmark, Libet, Velmans, Wegner, and Festinger. (shrink)

Striking experimental results by Benjamin Libet and colleagues have had an impor- tant impact on much recent discussion of consciousness. Some investigators have sought to replicate or extend Libet’s results (Haggard, 1999; Haggard & Eimer, 1999; Haggard, Newman, & Magno, 1999; Trevena & Miller, 2002), while others have focused on how to interpret those findings (e.g., Gomes, 1998, 1999, 2002; Pockett, 2002), which many have seen as conflicting with our commonsense picture of mental functioning.

S. Pockett and G. Gomes discuss a possible bias in the method by which Libet's subjects estimated the time at which they became aware of their intent to move their hands. The bias, caused by sensory delay processing the clock information, would be sufficient to alter Trevena and Miller's conclusions regarding the timing of the lateralized readiness potential. I show that the flash-lag effect would compensate for that bias. In the last part of my commentary I note that the other (...) target articles do not examine the most interesting aspect of Libet's unfashionable views on free will. I point out that Libet's views are less strange than they at first appear to be. (shrink)

Despite a recent surge in publications on Tourette Syndrome, we still lack substantial insight into first-personal aspects of “what it is like” to live with this condition. This is despite the fact that developments in phenomenological psychiatry have demonstrated the scientific and clinical importance of understanding subjective experience in a range of other neuropsychiatric conditions. We argue that it is time for Tourette Syndrome research to tap into the sophisticated frameworks developed in the philosophical tradition of phenomenology for describing experience (...) in a way that integrates discrete symptoms into an overarching experiential framework concerning the self, the body, and its modes of experience. Following a historical introduction that contextualises the pertinence of phenomenology to psychopathology, we distinguish this approach from the existing, psychologically oriented studies on TS that are also qualitative. We then outline gaps and opportunities for future research, including the sorts of questions that might be utilised in phenomenological interviews and why they are of potential benefit to research programs in philosophy, psychology, and neuroscience. In conclusion we address some of the broader implications for phenomenology of the body and philosophy of action. (shrink)

Diejenigen, die behaupten, der freie Wille sei Illusion, sind im Unrecht. Sie begründen ihre Behauptung auf einem wissenschaftlichen Beweis, der die falsche Ebene der Deskription des intentionalen Handelns testet. Der freie Wille bezieht sich nicht auf subpersonale neuronale Prozesse, Muskelaktivierung oder grundlegende Körperbewegungen, sondern auf kontextualisierte Handlungen in einem System, das größer ist als viele zeitgenössische Geistesphilosophen, Psychologen und Neurowissenschaftler annehmen. In diesem Artikel beschreibe ich die Art von Intentionalität, die mit der Ausübung des freien Willens einhergeht.

ABSTRACT For a long time, the question of the existence of free will has fueled philosophical debate with no definitive solution. Libet’s paradigm (1983) seemed to demonstrate that simple and apparently voluntary movements could be triggered not by consciousness, but by preconscious or random brain processes. Such findings had wide repercussions in the academic and scientific circles, triggering an extensive discussion among neuroscientists, philosophers and jurists. Exploring the interfaces between neuroscience and free will, the present work aims to formulate an (...) updated synthesis of the diverse problematizations about the Libetian findings. It appears that Libet’s essay, although repeatedly analyzed and replicated in recent decades, still lacks a definitive interpretation, in part due to methodological controversies and specific conceptual shortcomings. The deepening of these investigations, combined with the new discoveries offered by neuroscience, can enrich research on free will in the coming years. (shrink)

Awareness of intention je fenomenální zkušenost prožitku motorické intence, charakterizovaná jako vědomé uchopení akce, kterou se agent chystá provést. Typicky bývá ztotožňována s okamžikem, kdy si participant vzpomíná, že se rozhodl provést svou akci, reportovaným prostřednictvím pozice ručičky na ciferníku Libetových hodin. Intenzivní výzkum prožitku jednání (sense of agency) v posledních letech přinesl velké množství poznatků, ale také kritiku metodologických slabin, mezi které patří závislost výsledků na metodě reportování a závislost na arbitrárních vlastnostech reportovacích nástrojů. Filozofové si zase všímají intervenujících (...) klamů vědomí či chyby Karteziánského divadla. Význačnou otázkou je také značná heterogenita experimentálních výsledků. Východiskem textu je argument, že mnohé z problémů tohoto výzkumného program souvisí se sadou implicitně zastávaných postojů, které vnímají awareness of intention jako integrovaný, unitární proces charakterizovaný graduálním nárůstem premotorické mozkové aktivity a náhlým nástupem uvědomění. Tato konceptuální východiska jsou převážně nereflektovaná, kontingentní a představují významné omezení pro explanaci současných empirických pozorování. Těžištěm článku je nástin nového teoretického rámce, který jde za implicitní předporozumění integrované perspektivy a umožňuje integrovat rozporné behaviorální výsledky. Tato rekonceptualice staví na Schoolerově teorii meta-uvědomění a teorii access a phenomenal consciousness Neda Blocka a nachází také oporu v neurovědných studiích. Představená rekonceptualizace přichází s dichotomií fenomenálního awareness of intention, souvisejícího s přípravou motorické intence v prefrontální oblasti a reflexivního meta-awareness of intention, které patrně souvisí s procesy v parietálním kortexu. (shrink)

What is consciousness? What is its importance and how is it to be described? The paper looks at some of the principal theories and their attempts to solve the “hard problem” of how consciousness is produced by nervous tissue, and attempts to close the “explanatory gap” between such (apparently) profoundly different things as subjective awareness and a physical brain. It ends with a tentative suggestion that, despite centuries of philosophical frustration, recent appeals to quantum physics may offer a glimmer of (...) hope. (shrink)

This issue of Consciousness and Cognition presents four target articles and eight commentaries on the target articles. The present article presents comments on those commentaries, grouped into backward referral and volition categories. Regarding backward referral: I disagree with my fellow commentators and take the unpopular position of defending Libet's notion of backward referral. I join my fellow commentators in critiquing Libet's notion of a 500-ms delay. I examine several of the hypotheses suggested by other commentators for why cortical and lateral (...) meniscus stimulation give very different timing results. I suggest a simple experiment to help discriminate among the hypotheses. I comment on why temporal reordering is more likely to occur late rather than early in mental processing. Regarding Libet's volition experiments, I ask what is the root of the controversy, given the general agreement on the data. I agree with a commentator that Libet's chronotheology rather than his chronoscience is the cause of much of the controversy. Rather than joining others in criticizing Libet for his chronotheology I point out that he is making a respectable philosophical point regarding nondeterministic Free Will, but one that is easily misunderstood. I discuss two ways by which Libet's viewpoint can be brought into mainstream science. (shrink)