A recently published article in "Frontiers in Psychology"
(word to the wise) by Oakley & Halligan argues that
consciousness is an epiphenomenal by-product of an
unconscious process called the "internal narrative".  If this
sounds familiar it may be because it is similar to the 1970s
imagery debate. that is. do mental images such as visual
mental images have psychological reality and admit transformation
and operations comparable to real world pictures (e.g.., the
Shepard mental rotation studies, the Kosslyn distance estimation
on images research, etc.) or are mental images epiphenomenal
by-products of abstract cognitive processes as argued by
Zenon Pylyshyn and other supporters of a Chomskyan style
cognitive architecture (i.e., rule and symbol systems with
cognitively impenetrable modules).  John Anderson's 1978
paper pointing out that there was no principled way to determine
which position was correct pretty much settled the argument
but proponents of the analog view of mental images (Shepard, etc.)
or the epiphenomenal view of mental images (Pylyshyn) would
continue to skirmish over the decades. As far as I know, Anderson's
conclusions still holds.  I say all this as a prologue to identifying
the sources for the Oakley & Halligan paper just to prime the reader
toward a particular conclusion. ;-)

I became aware of Oakley & Halligan paper because a newspaper
article about it popped up in my news feed.  The UK newspaper
the Daily Mail has an article that presents Oakley & Halligan's
speculations as conclusive science (or is this just my interpretation?);
see:
http://www.dailymail.co.uk/sciencetech/article-5114511/What-consciousness-not-drives-human-mind.html

The original article can be accessed here:
https://www.frontiersin.org/articles/10.3389/fpsyg.2017.01924/full

It is likely your students may hear or read about this paper or,
worse, some textbook author may take it seriously and include it in
their text, so it may be worth one's time to examine it.  If students
raise questions about the article in class remember to tell them
that as a theory, as an explanation of a phenomenon, it suffers
from the faults of all theories:  it is limited by its reliance on results
collected to date and may be falsified by future results,  there may
be alternative explanations that account for the results equally well
but lead to fundamentally different conclusions, and, finally, all theories
have a shelf life because they are limited, flawed, tentative, likely
to be falsified by new data, and replaced by theory that better explains
the phenomenon of interest.  So, tell students to not over-invest in any
one theory if for no other reason than the sunk cost effect.

Happy Post-Birdday!

And "Hi!" to the Canadians and Tipsters from Parts Unknown. ;-)

-Mike Palij
New York University
[email protected]

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