Calendar

Speakers:

Biyu Jade He (NYU Medical Centre)
Hakwan Lau (UCLA)
Victor Lamme (University of Amsterdam)
Johannes Fahrenfort (University of Amsterdam)

Where in the brain are the neural correlates of perceptual consciousness?  Some leading theories of consciousness, including global workspace and higher-order thought theories, hold that these correlates centrally involve prefrontal cortex.  Other leading theories, including first-order and integrated information theories, hold that these correlates centrally involve sensory cortices, with prefrontal cortex playing at most a secondary role.  In recent years much experimental evidence has been brought to bear on both sides of the question.

In this debate, Hakwan Lau (UCLA) and Biyu Jade He (NYU) will defend the view that neural activity in prefrontal cortex is important for conscious perception, while Victor Lamme (Amsterdam) and Johannes Fahrenfort (Amsterdam) will argue that prefrontal activity is not important for conscious perception.

This paper considers Cornelius Castoriadis’s articulation of social imaginary significations with an emphasis on their link to the radical imaginary. Castoriadis wrote on social imaginary significations for more than thirty years, and his understanding of them changed significantly during this time, yet this is not reflected in debates on his work. The paper argues that there are three distinct phases in his reflections. The first phase can be dated 1964-1970. This early phase is characterized by Castoriadis’s break from Marx and subsequent settling of accounts with Marxism. Central to Castoriadis’s critique of Marx was the recognition of history (or: the social-historical) as the domain of meaning and unmotivated creation as the work of the radical imaginary. Importantly, Castoriadis also considered the intertwining of the imaginary with the symbolic, on the one hand, and with social doing, on the other. Castoriadis’s approach in this early phase can be considered phenomenological in the broad sense that Merleau-Ponty gave it in the Phenomenology of Perception. The second phase is dated 1970-1975; that is, the period in which Castoriadis wrote the second part of The Imaginary Institution of Society wherein he announced his turn to ontology. This is his most self-contained and systematic articulation of social imaginary significations. Castoriadis extends and develops his notion of magma in relation to social imaginary significations and emphasizes the social imaginary creation of a world ex nihilo as an ontological creation, whilst the radical imaginary is presented as a part of his emergent general ontology of à-être. The third ‘kaleidoscopic’ phase is dated 1976-1997 and may be understood as a period of consolidation and expansion. Although his basic understanding of social imaginary significations did not dramatically alter (although further developments are visible), his thought went in a myriad of different directions and patterns – hence kaleidoscopic — that nonetheless shaped a wider background against which his elucidation of social imaginaries were configured. His reconsideration of the sacred, the ‘ground power’ of institutions, and the development of a poly-regional ontology of the for-itself were key to this changing background. The paper will conclude with a critical engagement with the implications of the changing permutations of the imaginary element for Castoriadis’s thought.

Dr. Suzi Adams is Senior Lecturer in the College of Humanities, Arts, and Social Sciences at Flinders University and permanent External Fellow at the East-Central European Institute for Philosophy, Charles University (Prague). She is a founding co-ordinating editor of the Social Imaginaries refereed journal and book series, and from October-December 2019, was an inaugural Senior Research Fellow at the Humanities Centre for Sustainable Futures at the University of Hamburg. She has published widely in the social imaginaries field, including most recently Social Imaginaries: Critical Interventions (Eds. Suzi Adams and Jeremy Smith), 2019, Rowman and Littlefield International, London. She is currently writing a monograph entitled Castoriadis and the Imaginary Element (forthcoming with Rowman and Littlefield International).

Professor Williamson will give 3 lectures: September 19, 21, and 23. All will take place in AB-2400 [East Wing] from 4:30-6:30pm.

The lectures will discuss problems in the methodology of contemporary philosophy. Although philosophy without use of counterexamples would be a disaster, the way they are currently handled is naïve. In particular, it is too vulnerable to fake counterexamples generated by more or less universal human heuristics.

Lecture One: Heuristics [9/19]

Human cognition, from sense perception to abstract reflection, frequently employs heuristics, quick, easy, efficient, and imperfectly reliable ways of solving problems. To a neglected extent, philosophical problems and paradoxes from reliance on the outputs of fallible heuristics. This will be illustrated with examples involving vagueness, conditionals, belief ascription, truth and falsity, and reasons aggregation. Potential lessons for philosophical method will be discussed.

Lecture Two: Overfitting [9/21]

Overfitting is a well-recognized methodological problem in natural science, where use of models with too many degrees of freedom leads to unstable theorizing and failure to detect errors in the data. Overfitting is also a major but ill-recognized methodological problem in philosophy, exacerbated by its reliance on heuristics. General intellectual tendencies conducive to overfitting in philosophy will be discussed.

Lecture Three: Hyperintensionality [9/23]

The ‘hyperintensional revolution’ proclaims that central metaphysical distinctions cannot be captured in modal terms since they are sensitive to differences between necessary equivalents. Such hyperintensionalism fits the profile of overfitting. It is motivated by case judgments that are explicable as results of a fallible heuristic and it leads to models with too many degrees of freedom.

Professor Williamson will give 3 lectures: September 19, 21, and 23. All will take place in AB-2400 [East Wing] from 4:30-6:30pm.

The lectures will discuss problems in the methodology of contemporary philosophy. Although philosophy without use of counterexamples would be a disaster, the way they are currently handled is naïve. In particular, it is too vulnerable to fake counterexamples generated by more or less universal human heuristics.

Lecture One: Heuristics [9/19]

Human cognition, from sense perception to abstract reflection, frequently employs heuristics, quick, easy, efficient, and imperfectly reliable ways of solving problems. To a neglected extent, philosophical problems and paradoxes from reliance on the outputs of fallible heuristics. This will be illustrated with examples involving vagueness, conditionals, belief ascription, truth and falsity, and reasons aggregation. Potential lessons for philosophical method will be discussed.

Lecture Two: Overfitting [9/21]

Overfitting is a well-recognized methodological problem in natural science, where use of models with too many degrees of freedom leads to unstable theorizing and failure to detect errors in the data. Overfitting is also a major but ill-recognized methodological problem in philosophy, exacerbated by its reliance on heuristics. General intellectual tendencies conducive to overfitting in philosophy will be discussed.

Lecture Three: Hyperintensionality [9/23]

The ‘hyperintensional revolution’ proclaims that central metaphysical distinctions cannot be captured in modal terms since they are sensitive to differences between necessary equivalents. Such hyperintensionalism fits the profile of overfitting. It is motivated by case judgments that are explicable as results of a fallible heuristic and it leads to models with too many degrees of freedom.

Professor Williamson will give 3 lectures: September 19, 21, and 23. All will take place in AB-2400 [East Wing] from 4:30-6:30pm.

The lectures will discuss problems in the methodology of contemporary philosophy. Although philosophy without use of counterexamples would be a disaster, the way they are currently handled is naïve. In particular, it is too vulnerable to fake counterexamples generated by more or less universal human heuristics.

Lecture One: Heuristics [9/19]

Human cognition, from sense perception to abstract reflection, frequently employs heuristics, quick, easy, efficient, and imperfectly reliable ways of solving problems. To a neglected extent, philosophical problems and paradoxes from reliance on the outputs of fallible heuristics. This will be illustrated with examples involving vagueness, conditionals, belief ascription, truth and falsity, and reasons aggregation. Potential lessons for philosophical method will be discussed.

Lecture Two: Overfitting [9/21]

Overfitting is a well-recognized methodological problem in natural science, where use of models with too many degrees of freedom leads to unstable theorizing and failure to detect errors in the data. Overfitting is also a major but ill-recognized methodological problem in philosophy, exacerbated by its reliance on heuristics. General intellectual tendencies conducive to overfitting in philosophy will be discussed.

Lecture Three: Hyperintensionality [9/23]

The ‘hyperintensional revolution’ proclaims that central metaphysical distinctions cannot be captured in modal terms since they are sensitive to differences between necessary equivalents. Such hyperintensionalism fits the profile of overfitting. It is motivated by case judgments that are explicable as results of a fallible heuristic and it leads to models with too many degrees of freedom.

How does the imagination change us? Why should picturing ourselves a certain way have any real effect on what we are? These questions are central to debates in Buddhist tantric literature regarding the generation stage (utpattikrama), wherein practitioners visualize themselves as buddhas ensconsed in magnificent mandala-palaces. For some, this practice is what sets Buddhist tantra apart: through this “yoga of the imagination,” as David Shulman puts it, a practitioner can achieve buddhahood in a single lifetime. And yet, as the Buddhist tantric author Indrabhūti (8th century) argues, a pauper who imagines himself to be a king does not thereby become one—so, in the same way, practitioners who visualize themselves as buddhas will not thereby become buddhas. The mental imagery (ākāra) involved in this practice is just so much unreal fabrication. Why should it have real transformative effects? I’ll consider here how these debates played out in Sanskrit Buddhist tantric texts from the 10th–11th centuries. I’ll focus on early authors in the Kālacakra tradition, who upheld Indrabhūti’s critique of the generation stage, and authors like Ratnākaraśānti, Vāgīśvarakīrti, and Advayavajra (aka Maitrīpa), who each in their own way critiqued mental imagery yet defended the importance and effectiveness of generation-stage practice. In the first part of the paper, I’ll consider arguments against mental imagery as these appear in generation-stage practice texts and the early Kālacakra tradition. In the second part, I’ll turn to why we might think unreal mental imagery can nevertheless have real transformative effects, paying special attention to the ways Buddhist tantric authors writing in Sanskrit take up ideas from the tradition of dramatic theory (nāṭyaśastra) and Sanskrit culture more broadly.

With responses from Thomas Yarnall (Columbia University)

DATE: February 2nd, 2024

TIME: 5:30 pm EST

LOCATION: Philosophy Hall, Room 716, Columbia University

1150 Amsterdam Ave, New York, NY 10027

NOTE ON ENTRY FOR NON-COLUMBIA GUESTS: The door to Philosophy Hall will only open with a Columbia University ID card. If you do not have this card please arrive early where someone will be standing outside until the meeting begins. If you arrive late, you can ask someone walking nearby to let you in or contact Cole at cf2798@columbia.edu. Please only contact Cole as a final resource so as not to interrupt the talk.

NOTE REGARDING DONATIONS: Due to COVID-19, donations are only accepted through Columbia University’s secure online giving form, Giving to Columbia.

RSVP is required for dinner. Dinner will take place at a nearby restaurant. Please contact Cole at cf2798@columbia.edu for further information.

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Comparative Philosophy Seminar:

• January 19 – Alex Watson (Ashoka University)
• February 2 – Davey Tomlinson (Villanova University)
• April 5 – Laura Specker (Fordham University)
• May 3 – Daniel Stephens (University at Buffalo)