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



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”.
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
>>>>> 
>>>>> 
>>>>> 
>>>> 
>> 
>> 
>>