Facebook

Showing posts with label ideas. Show all posts
Showing posts with label ideas. Show all posts

Saturday, November 12, 2011

What Does "Bigger Than" Look Like in the Mind? Part 1 Locke's Ideas

The Prolem: Are All Locke's Ideas Necessarily Imagistic?
     Those of you who are facebook friends know I that I recently posted about a little issue I'm having wif my Locke paper.  Here's the prolem: most of my analysis and criticisms of Locke's epistemology rest on the premise that, for Locke, all ideas are images in the theatre of the mind.  I've read a couple of secondary sources that corroborate this interpretation but after frantically scanning my paper last night I realized that I don't a any direct quote from Locke to support this assertion.  
     Now, it is fairly evident that he thinks ideas caused by sense perception are images but Locke is aware that there are other types of ideas.  Locke says we get all our ideas one of two ways: through sense perception or through reflection.  By reflection he means comparing, mixing, and abstracting from the sense perception ideas.  For example, I have an idea (image) of a chair and of a large chair.  By comparing these two ideas I can create the new ideas of size and relative size, or "big" and "bigger than".  That much is clear in Locke, but what isn't clear is the phenomenological (what-it-is-like-to-have-ness) properties of the ideas size or "bigger than".  Another way to state it would be to ax, what does it mean to experience ideas of concepts?  This is the prolem I'm having; I'm not sure what Locke thinks about this...so, it's time to do a little reading of the primary "litra-cha".

Ideas Produced by Sense Perception
     Lets start with what I know, or at least what I think I know about how Locke thinks about ideas produced by sensory perception (did you get all that?).   The relevant passage is this, "But our ideas being nothing, but actual perceptions in the mind, which cease to be any thing, when there is no perception of them [...]".  So from here it appears fairly easy to ascribe an imagistic theory of mind to Locke but now I'm not so sure.  Sure he says ideas are perceptions in the mind but does this necessarily mean the perceptions have to be images?  I don't think this passage on its own is sufficient to make that case.
     Lets consider some of the language he uses to talk about perceiving ideas, in the context of memory, that occur in this same paragraph.  He says the purpose of memory is to "revive again in our minds those ideas, which after imprinting have disappeared, or have been as it were laid aside out of sight".  To talk of ideas "laid aside out of sight" certainly sounds imagistic, but notice he qualifies the phrase with, "as it were" in order to indicate an analogy, not a statement of fact.  Still no verdict.
     However, later in the paragraph, again discussing the purpose of memory, he says that memory allows us to "bring in sight, and make appear again, and be the objects of our thoughts, without the help of those sensible qualities, which first imprinted them there".    Again, phrases like "bring in sight", "make appear again" and "objects of our thoughts" sound very imagistic but there is no reason why Locke my not be using them as analogies.  In particular the phrase "objects of our thoughts" does not necessarily imply images, he might simply be saying "the content of the idea about which we are conscious".  I can't see why this commits him to an imagistic theory of mind, or even a phenomenal theory of mind.  
     He could be just about any brand of representationalist.  All he's really saying is that there is something in the content our perception of 'X' and in our recalling our perception of 'X' that are similar (the same?).  Maybe in the case of sense perception we can ascribe an imagistic or phenomenological theory to Locke but there's nothing that unusual in saying our memory of a perception and the actual perception have some imagistic qualities in common.  In regards to ideas and recollections of concepts, however, I don't think we have any evidence one way or another to determine Locke's position....more research




   

Wednesday, November 9, 2011

A Bird Is a Word: Having Locke's Ideas


Having Ideas
     What does it mean to have an idea?  Does it require we have some image in the theatre of our mind?  Where do ideas come from? Can we make our own or do they all come in through the senses? For contemporary philosophers 'having a idea' usually implies some sort of disposition; something like, if a circumstance arose where a collection of beliefs and images were appropriate then I could have conscious access to the idea.  So why disposition?  Well, I think it has something to do with the fact that we can't simultaneously hold all of our ideas at the fore of our consciousness (how confusing would that be?) but we need to explain how we can access ideas we've had in the past. 
    One thing about dispositions is that they imply that you've had the idea before but you've relegated it to some place in your memory for future use (appropriate circumstances/context or maybe just daydreaming...).  So, at some point the idea "got into you"...unless of course you were born with it; but that's a different topic.  
      If I tell you to put the idea of a bird in your mind, what happens?  You probably get some sort of image of a bird.  Now think about where you got your idea of the bird.  The story is probably something like, when you were a kid out with your parents, there was a bird in your visual field and your parents indicated it and told you to call it a bird.  The point is that you had some sort of sensory experience that initially "produced" in your mind the idea of a bird.  And because you don't always go around with the idea of a bird at the front of your consciousness, the idea of 'bird' is stored somewhere for later use.   The main point for Locke's purposes is that it all started with you having a sensory experience of a bird, which incidentally, is a word.
     For Locke all ideas had their origins as sensory experiences...well, mostly.  Sensory experiences provide the raw material from which the activities of our minds can form new more complex ideas by comparing, compounding, and abstracting from the raw material. So, we can compare this type of 'having an idea' (havingE an idea) with the dispositional type (havingD an idea).   To make it more explicit 'havingE' an idea means something like seeing a picture of something in your head whereas the 'havingD' an idea means that it is contained in your memory but you can only really 'haveE' the idea in your memory when you have already had it and pull it to the fore of your consciousness.
     For Locke there is really only havingE ideas; we can't haveE ideas we are not directly conscious of in the sense that we must perceive them in the theatre of our mind as an image.  For this reason we can interpret Locke as saying the experience of sensory perception and the experience of recalling something we previously experienced will in some way be the same sort of experience; they both involve conscious awareness of some image in the theatre of the mind.
     Ok, so lets get that straight one more time.  If I haveD an idea of a bird (which is a word) stored in my memory the only way I can haveE that idea is if I perceive it as an image in the theatre of my mind.  Also, I can haveE an idea of a bird if I'm looking at a bird--the physical properties of the bird produce in me a mental image of...a bird!  So here's the quextion: if both recalling an idea and havingE an idea produced in our minds through sensory perception both involve perceiving some mental image, how can we distinguish between the two types of experiences?

     In the term paper I'm working on this issue is a sub-issue, here's a little bit I've written on it so far, I apologize for the lack of ebonics...I hope you can still understand me :)

Btw, I enjoy writing in my blog way more than writing essays...why?  This essay is KILLING me!


The Relation Between Sensing and HavingE ideas
     It is quite apparent that Locke sees a close relation between sensing something and havingE an idea of that thing. However, this does not necessarily commit him to the view that this is the only way we can haveE ideas because he speaks of havingE ideas when we dream, remember, abstract, and think of things in their absence (Stuart 40). It is clear from several passages that Locke maintains there is—perhaps--a self-evident difference between havingE ideas produced by perception and havingE ideas by recalling them.
      To make his point Locke asks us to consider our mental contents while we look at the sun (I hope he knew not to look directly at the sun!) at T1 and contrast them with our mental contents at T2 when we recall looking at the sun back at T1. He tells us that if we do so we will “as plainly find the difference there is between any Idea revived in our minds by our own Memory, and actually coming into our Minds by our Senses, as we do between any two distinct Ideas” (IV.ii.14). That is to say, the difference between our mental contents at T1 and T2 will be as evident as the difference between two unrelated ideas. His conviction leads one to wonder why, if the difference is so obvious, doesn't he explain that in which it consists?
      In IV. xi. 5, Locke offers a possible criterion by which we can distinguish both types of havingE ideas. The “manifest difference difference” between the Ideas “laid up in my memory” and those that are the result of sensory perception is that the latter type “force themselves upon me” and “I cannot avoid having” them. So, if we cannot avoid havingE an idea then we must be in the act of perceiving through the senses; and if we can “at pleasure” have the ideas of the scent and colour or a rose, for example, then we are havingE an idea of something we previously sensed.
      But does this distinction always hold? One objection to this distinction is to question the passive-active dichotomy. When Locke speaks of ideas “forcing themselves upon” him the implication is that in perception we are passive agents; however, this it not true. Obviously, I have some control over whence I direct my sensory organs but Locke easily meets this challenge. He can simply reply that while we may be able to chose whence we direct our sensory organs, there is no way for me to “unperceive” the ideas that have been produced though sensory perception; and it is in this respect that we are passive. 
       This is certainly true in some instances but perceptual psychology has demonstrated that we are often blind to sensory objects to which we do not consciously attend. 

 Before reading further click on the link and do the selective attention test:

The classic demonstration of this phenomena is observed in an experiment where the subject is asked to watch a video in which two groups of players—half wearing white, half wearing black—pass multiple basketballs between themselves. The ostensible task of the subject is to count the passes the white team makes. Since the subject is attending so strongly to their task, after watching the video when they are asked if they noticed anything unusual they do not report noticing a man in a gorilla suit that strolled right across the screen, despite the fact that he was in their visual field. The upshot of the experiment is that at least to some degree in perception we are not totally passive; if this were true subjects would notice the man in the gorilla suit.
      We do not always recall things “at our pleasure” is the other objection to Locke's distinction between how the two ways we come to haveE ideas in our minds is that . There are two related counter-examples to this assertion. The first is demonstrated by the impossible challenge of not thinking of monkeys when someone commands “don't think of monkeys”. If we interpret Locke in the strong sense of our being able to access ideas from our memory at our pleasure—that is we have total control of what we access--then we'd expect to be able to not think about monkeys when commanded not to do so! But, as most of us learned when we first encountered this paradoxical command, it one with which it is nearly impossible to comply. In fact, I would be willing to wager that at this moment the reader is vainly trying to block out images of monkeys!
      There are other instances where we have limited control over our thoughts, and in these case the ideas "force themselves" from within. Consider situations when you get a song stuck in your head—what's worse is that it's usually a song that you can't stand. Perhaps this is only anecdotal but it certainly seems like the harder I try to expunge the offending tune from my mind, the more entrenched it becomes. Certainly, I did not recall the idea of this song “at my pleasure”! Nightmares are another example of the lack of control we have over what ideas appear in our mind--for even after we wake up our attempts to will away the disturbing images from our minds are futile.
      One could argue that these counter examples do not entirely discredit Locke's position that there is an obvious difference between ideas produced through perception and accessing ideas that were “layed up” in the memory; however, I think that while we can maintain a distinction, to call it an obvious distinction is to overstate the case. What the above examples have demonstrated is that resting the distinction on the passive-active criteria does not apply to all cases.   I think Locke is correct in his premise that there is a distinction between havingE and idea as produced through sensory perception and havingE an idea as a recalling of a prior experience but I'm not sure that the criterion by which he distinguishes the two does the work he needs it too.  How should Locke make this distinction? Can we find a better way within his own work?

Sunday, October 30, 2011

Mommy...Where Does Knowledge Come From? Locke's Empiricism

Overview   
     For the research paper for my 17th century philosophy class I've chosen for my topic Locke's notion of simple ideas and their role in his epistemology.  So, what's all this mumbo jumbo about?  And who is John Locke? As most of you may know, John Locke was trapped on a strange island with a bunch of other people when their plane crashed.  But what many of you might not know, is that prior to crashing on the island in Lost, John Locke was a prominent 17 century philosopher.
     Locke is the grand daddy of empiricism--the philosophy that the foundation of our knowledge is sensory experience.  His philosophy is in obvious contrast with the rationalists Descartes and Spinoza who believed pretty much the opposite--that the foundation of all knowledge is accessible through rational refection.
   A super skeleton sketch of Locke's empiricism looks like this  (reduced  from about 500 pages to 6 lines):  
1.  There are no innate ideas...have you ever met a baby that knew how to do maph?  He gives quite a few different arguments against innate ideas but you get the gist of it.
2.  So, all knowledge must originate as ideas caused by sensory experiences.  (Perceiving something produces an idea of that thing in my mind).
3.  The mind then acts on these simple ideas to compare, connect, and abstract from them to form more complex ideas.

     In my essay I want to explore a couple of interrelated issues.  (1).  What is a simple idea?  and is this an intelligible concept? (2).  if we can come up with an intelligible notion of a simple idea, can it do the work Locke needs it to do to support empiricism, or do we need to allow some degree of innate knowledge?  Anyhow, you're going to follow along as I do my research...

Lets get in stahted in hah....

Ideas in General and their Origin
     For Locke, if someone reflects upon the origin of many universal truths "they would have found them to result in minds of Men, from the being of things themselves, when duly considered; and that they were discovered by the application of those Faculties, that were fitted by Nature to receive and judge of them, when duly employ'd about them."  If we translate this from Locke's beautiful prose it reads that knowledge of general truths is derived from the ideas that those objects cause in our minds through sensory experience. Enough with the generalities, lets get down to the nitty gritty of how this works.
     The contents of the Mind are ideas.  Er'body has a variety of ideas in their mind, such as Whiteness, Hardness, Sweetness, Thinking, Motion, Man, Elephant, Army, Drunkenness, Sippy-cup, Chains, Things that are Off the Chain, etc...How do all these ideas get into our mind?  Locke demonstrated that they can't be innate, so whence did they come?  
     Here he famously axes us so suppose the mind to be "white paper, void of all characters, without any Ideas"...all the ideas that fill our mind came from one source: experience.  All knowledge is founded on it and derived from it.  "Our observation employ'd either about external, sensible Objects; or about the internal Operations of our Minds, perceived and reflected on by ourselves, is that which supplies our Understandings with all the materials of thinking".
     So basically our knowledge has two subsources: sensation which gives us ideas through the perception of external things; these ideas include things like yellow, white, heat, cold, soft, hard, bitter, sweet...and anything else we call sensible qualities.  Sensible ideas are the result of the ideas that are produced in our mind through a causal relation to an external object.  For example, the chair causes in my mind the ideas of brown, wood, chair, etc..
     Reflection is the other source "from which Experience furnisheth the understanding with ideas is the perception of the operations of our own Minds within us" as it acts on the raw ideas is has received from perception to produce new ideas.  Basically, we can get new ideas when our mind manipulates, mixes, abstracts, and compares whatever ideas we already have (from perception). Acts of the mind include: perception, thinking, doubting, believing, reasoning, knowing, willing which give rise in us new ideas (about other ideas). 
     There are no other sources of ideas beyond sensation and reflection.  Ideas arising from sensation arise from without and concern external objects whereas reflection involves ideas about our mind's own operation.  Locke challenges us to "search our Minds" for ideas that didn't come from one of these two sources.
     Pay attention! The more numerous and varied the objects you come in sensory contact with the more simple ideas you will have; there is a parallel for ideas arising out of reflection--the is a direct relation to the amount of reflection one does and quantity of ideas one has about the operation of his own mind.  Also, there is a direct relation to the degree of clarity your ideas have with the the degree of attention you put into observing external objects and your mental operations.  If you don't pay attention your ideas will be unclear and your knowledge will rest on a shaky foundation--so pay attention!
     On our first ideas: At what point in our life do we have our first ideas? "When he first has any Sensation" then it is to these first sensorily derived ideas that we employ the mental operations of perception, remembering, consideration, reasoning, etc...In time the mind (can) reflects on its own mental ideas.  This means something like the having thoughts like "I am looking at the elephant", "I like elephants", "I am thinking about myself looking at the elephant", "I like thinking about myself looking at elephants" and so on...Through this process the mind gets more ideas--ideas from reflection.
The important point is that we need the initial sensory ideas first before the mind can go to work on them, after that, through continual reflection and more sensory ideas the sky is the limit.  Our minds are idea factories!
       Hint at a criterion for simple idea (finally, Yay!):  In receiving these basic ideas from sensory perception our minds are passive.  So long as our perceptual apparati are in good working order there is little we can do to avoid the intrusion of these first sensory ideas into our mind; and no one can be wholly ignorant of what he does when he thinks.  These are the simple ideas--the one's that the mind can do nothing to avoid or blot out, no more than "a mirror can refuse, alter, or obliterate [...] the objects set before it."  Ok, Locke, I'm going to hold you to that!

Time to take a break and work on the proposal for my Kant paper...due tomorrow : )