Showing posts with label Journal Club. Show all posts
Showing posts with label Journal Club. Show all posts

Tuesday, July 2, 2013

Journal Club - Debating the role of the prefrontal cortex in conscious experience

Welcome back to the Journal Club! There are only ten days before ASSC 17 meeting, so please join our discussion of some really interesting papers related to the featured talks and symposia!

Our second journal club concerns a recent debate on the role of the prefrontal cortex in conscious experience. One of the major debates on consciousness is that between higher-order and first-order approaches. People who support higher-order approaches typically take prefrontal cortex as the key region in which phenomenally conscious experiences arise, while people who support first-order approaches usually think that it is the sensory regions, not the prefrontal cortex, which gives rise to conscious experiences. In Lau and Brown’s 2012 paper [1], they offer some empirical cases to support the higher-order views, arguing that the subjects can still have conscious experience without first-order representations. On the other hand, in Malach’s 2011 comment [2], he argues that some of the empirical data shown in Lau and Rosenthal’s 2011 paper are in fact compatible with first-order theories, therefore, more empirical evidence is still needed.




The debate on the role of prefrontal cortex and between the two approaches will be continued at the ASSC 17 meeting on July 13 as the first symposium. Brown, Malach, Levine, and Rahnev will all join this exciting debate!

We encourage you to read the following materials and then join in the discussion in the comments!

1. Lau and Brown 2012 “The Emperor’s New Phenomenology? The Empirical Case for Conscious Experiences without First-Order Representations” [paper link]

2. Malach 2011 TiCS “Conscious perception and the frontal lobes: comment on Lau and Rosenthal” [paper link]
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Additional readings:

- Brown 2012 Consciousness and Cognition “The myth of phenomenological overflow” [journal link]
- Rahnev et al 2011 Nature Neuroscience “Attention induces conservative subjective biases in visual perception” [paper link]
- Lau and Rosenthal 2011 TiCS “Empirical support for higher-order theories of conscious awareness” [paper link]

Thursday, May 2, 2013

Join the ASSC 17 Journal Club!

There are only two months left before the ASSC 17 meeting! Have you checked the ASSC 17 program and found that you were not so familiar with the topics of keynote lectures or symposium talks? Have you found that you would like to discuss about the debates with someone but couldn't find a companion to do so? 

Let's join the ASSC 17 journal club! This is a space for online study and discussion of selected material in advance of the ASSC 17 meeting. We'll periodically post a selection of material related to the major keynotes and talks featured at the meeting. Here we'll have a chance to get up to speed on several topics to help make the most of our attendance at the ASSC meeting.

We will begin the journal club by the recent debate on the Information Integration Theory of consciousness (IIT) between Giulio Tononi, Christof Koch, and John Searle. In order to get well-prepared before attending to this not-to-be-missed Roundtable, please don't be hesitate to join us and post your comments! (Join the first journal club now!)

Journal Club - Debating the IIT

Welcome to the first Journal Club! This is a space for online study and discussion of selected material in advance of the ASSC 17 meeting (early registration ends May 15!). We'll periodically post a selection of material related to the major keynotes and talks featured at the meeting. Here we'll have a chance to get up to speed on several topics to help make the most of our attendance at the ASSC meeting.
John Searle
Our first journal club concerns a recent debate playing out in the pages of the New York Review of Books. In the book review [1], John Searle critiques a theory of consciousness that's gained lots of traction in the past few years, the information integration theory of consciousness (IIT), proposed by Giulio Tononi. The particular book reviewed, "Consciousness: Confessions of a Romantic Reductionist", is by Christof Koch, and it expounds on the IIT. Following publication of the review, Koch and Tononi responded with a letter to the editors of the NYRB [2], challenging several parts of Searle's critique. Searle followed up with a reply of his own [2].

Giulio Tononi

Christof Koch

We chose this debate as our inaugural topic for a journal club discussion because it provides an excellent entry point to the issues at hand, and involves some of the most influential ideas motivating consciousness research today. Interestingly, Searle, Tononi, and Koch will continue this debate at the ASSC 17 meeting this July, appearing in a roundtable discussion moderated by Jennifer Goldman and Stuart Firestein!

We encourage you to read the (very brief) materials and then join in the discussion in the comments!

1. Searle 2013 New York Review of Books "Can information theory explain consciousness?"
[link to NYRB] [link to pdf printout]
 
2.  Koch & Tononi 2013 New York Review of Books "Reply to Searle: Can a Photodiode Be Conscious?" and Searle 2013 New York Review of Books "Reply to Koch & Tononi"
[link to NYRB] [link to pdf printout]
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 Optional readings:
- Tononi 2008 Biol Bull “Consciousness as integrated information: a provisional manifesto” [journal link]
- Koch 2009 Scientific American "A 'Complex' Theory of Consciousness" [magazine link]
- Tononi 2012 Arch Ital Biol “The Integrated Information Theory of Consciousness: An Updated Account” [journal link]
- Tononi 2012 “Phi: A Voyage from the Brain to the Soul” [amazon link]
- Koch 2012 “Consciousness: Confessions of a Romantic Reductionist” [amazon link]


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Updated June 18: Unfortunately, John Searle needed to cancel his participation in the roundtable discussion on Integrated Information Theory. But we're thrilled and honored that, in lieu of John Searle, Prof. Gary Marcus (NYU) will be joining the panel of discussants for 'Debating Integrated Information Theory' on Saturday, July 13th.  Don't miss this very special event!

Please read Prof. Marcus' reflections on The Integrated Information theory of consciousness in the most recent edition of the New Yorker online: http://www.newyorker.com/online/blogs/elements/2013/06/how-much-consciousness-does-an-iphone-have.html  
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