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[Xmca-l] Re: imagination and controlling the perception of visual illusions.



On 1 October 2015 at 20:38, HENRY SHONERD <hshonerd@gmail.com> wrote:

> Something that has intrigued me, and may be relevant to the thread, has
> been how I can “freeze” the movement of my overhead fans by voluntarily
> jerking my eyes back and forth as I gaze at the revolving fan blades. When
> I keep my eyes fixed, the blades blur. When I jerk my eyes back and forth,
> the blades seem to stop. Or so I perceive it. In the Pelaprat & Cole
> article (2011) on mending the gap, Etienne and Mike discuss saccadic eye
> movements as “central to the perception of the world”.
>

Which is possibly how the imagination trick works, Henry.  By regulating
eye movements through predicting where an imaginary object will be next.

I expect Mike will be coming back with more detail.

Best,
Huw



> Henry
>
> > On Oct 1, 2015, at 1:06 PM, Huw Lloyd <huw.softdesigns@gmail.com> wrote:
> >
> > On 1 October 2015 at 19:27, Martin John Packer <mpacker@uniandes.edu.co>
> > wrote:
> >
> >> So it's filling the gap again!  :)
> >>
> >
> > Or minding it, yes.
> >
> >
> >>
> >> Martin
> >>
> >> On Oct 1, 2015, at 1:16 PM, Huw Lloyd <huw.softdesigns@gmail.com>
> wrote:
> >>
> >>> On 1 October 2015 at 19:13, Huw Lloyd <huw.softdesigns@gmail.com>
> wrote:
> >>>
> >>>>
> >>>>
> >>>> On 1 October 2015 at 19:11, Martin John Packer <
> mpacker@uniandes.edu.co
> >>>
> >>>> wrote:
> >>>>
> >>>>> Huw,
> >>>>>
> >>>>> Might this be an artifact of the digital encoding of the video?
> >>>>>
> >>>>> Could you head to a tube station and try it with a real train?  :)
> >>>>>
> >>>>
> >>>> I suspect you'd need strobe lighting.
> >>>>
> >>>> Huw
> >>>>
> >>>
> >>> E.g.
> >>>
> >>> https://vimeo.com/116582567
> >>>
> >>>
> >>>
> >>>>
> >>>>
> >>>>>
> >>>>> Martin
> >>>>>
> >>>>> On Oct 1, 2015, at 10:21 AM, Huw Lloyd <huw.softdesigns@gmail.com>
> >> wrote:
> >>>>>
> >>>>>> I came across this meme/advert on linkedin, which is an animation
> of a
> >>>>> tube
> >>>>>> train:
> >>>>>>
> >>>>>>
> >>>>>
> >>
> https://buffer-pictures.s3.amazonaws.com/c2f41e8d32861d26bdecfc62f0d979e3.f009ceaeaf27dba4eb65f2ca247e9513.php
> >>>>>>
> >>>>>> Ignoring the glib annotation, it did seem to be a little interesting
> >> to
> >>>>>> discover if there was a reliable way to manipulate the perception of
> >> the
> >>>>>> direction of the train.
> >>>>>>
> >>>>>> Interestingly, this is something that I find I can do by imagining
> >> that
> >>>>> I
> >>>>>> can see an object within the train moving in the direction I wish,
> so
> >>>>> that
> >>>>>> perceived direction can be switched at will -- i.e. the perception
> of
> >>>>> the
> >>>>>> train can be shuttled back and forth.
> >>>>>>
> >>>>>> I'm not sure whether conditioning of memories of living in London
> >> would
> >>>>>> influence this (it is a London tube train).  Also, the speed at
> which
> >>>>> the
> >>>>>> train is going suggests its going away, because a train coming into
> a
> >>>>>> platform would usually, I think, be going slower.
> >>>>>>
> >>>>>> Best,
> >>>>>> Huw
> >>>>>
> >>>>>
> >>>>>
> >>>>
> >>
> >>
> >>
>
>
>