Stereo Perception with a Single Eye

Written by Charles Douglas Wehner

Despite one or two amateur attempts at creating a separate image for each eye, it wasrepparttar 1838 lecture torepparttar 126188 Royal Society in London by Sir Charles Wheatstone that truly tookrepparttar 126189 world by storm.

I have reprinted this work, complete withrepparttar 126190 original images, at .

Whatrepparttar 126191 reader will discover isrepparttar 126192 astonishing detail with which Professor Wheatstone - as he then was - approaches every nuance ofrepparttar 126193 minutiae of visual perception.

With almost every aspect ofrepparttar 126194 phenomenon of stereopsis accurately defined,repparttar 126195 Victorians could rush ahead - particularly afterrepparttar 126196 arrival of photography - withrepparttar 126197 production of images that convey depth.

Thatrepparttar 126198 human mind does not just playrepparttar 126199 eyes overrepparttar 126200 object to measurerepparttar 126201 depth, but can appreciate geometrical form "at a glance" was proven by a simple and ingenious experiment by Wheatstone.

However, an aspect that has been largely overlooked isrepparttar 126202 importance of SHORT-TERM MEMORY for further enhancement ofrepparttar 126203 stereoscopic impression.

There is atrepparttar 126204 core ofrepparttar 126205 brain a sensory area known asrepparttar 126206 "Limbic System" that gathers impressions from allrepparttar 126207 input data and merges them into an overall "feeling".

Thus,repparttar 126208 sound,repparttar 126209 smell,repparttar 126210 visual appearance,repparttar 126211 mechanical feel and other facets of an object are all combined inrepparttar 126212 limbic system for its overall cognition. The result might be called a NOUN.

Similarly, when one decides to walk one does not consciously activate every muscle in its correct sequence. Instead, one builds up a REPERTOIRE of movements - a LEG DRIVER in computer parlance - andrepparttar 126213 learned reflex of walking need only be triggered. This reflex "software" resides inrepparttar 126214 cerebellum.

Gnosisceptors (sensory nerves) feed backrepparttar 126215 feeling of walking torepparttar 126216 limbic system. Thus, when our minds decide to walk, when our eyes seerepparttar 126217 movement and our balancing mechanism recordsrepparttar 126218 motion, andrepparttar 126219 gnosisceptors inrepparttar 126220 legs confirmrepparttar 126221 leg action, we "feel"repparttar 126222 walking in our limbic system. Our walking is a VERB.

Sorepparttar 126223 verbs and nouns of our perception are created inrepparttar 126224 brain.

It is an inevitable consequence of evolution that those animals that need precise close-up stereopsis have eyes that point forwards. Think ofrepparttar 126225 preying animals, lions and tigers.

Those animals that need a wider field of view - such as birds - have eyes onrepparttar 126226 sides ofrepparttar 126227 head. Think of herd animals like horses and antelope.

Be Empathetic Not Sympathetic

Written by Steve Davis

Be Empathetic Not Sympathetic Put yourself inrepparttar other’s shoes, but don’t walk their path for them

Isn’t Sympathy a Good Thing?

“Oh you poor thing. What happened to you is just terrible! You must feel awful. I wish there was something I could do.”

Do these words sound familiar? Maybe you’ve used them on a friend or relative who suffered a back break, or perhaps you’ve heard them yourself from a well-meaning friend at a time when something went wrong for you.

Words like these are usually expressed by well-meaning people inrepparttar 126187 form of “sympathy” to someone they care about. But imagine yourself hearing these words right now. How do they make you feel? Loved, cared for, empowered? Or helpless, victimized, and just plain bad?

Though sympathy is a socially acceptible gesture, I suggest that you stop using it and accepting it from others. It doesn’t help you or them. Empathy is a far superior form of expression. Let me explain.

Sympathy or Empathy?

So what’srepparttar 126188 difference between sympathy and empathy? Sympathy, while highly valued in our culture, can actually be very disempowering. The sympathetic perspective tends to place you aboverepparttar 126189 other, placing you in a position that might sound something like, “Oh you poor thing, this is just terrible what’s happening to you.” This behavior on your part will actually enablerepparttar 126190 limited worldview of a person operating from a victim state of mind, and is less likely to help them move to a healthy resolution of their problem.

Onrepparttar 126191 other hand, coming from an empathetic perspective, you understand whatrepparttar 126192 other is feeling but don’t necessarily “go there” with them. Instead, you view them as capable of working throughrepparttar 126193 issue at hand. If you were being empathetic to someone in pain, you might say something like, “I sense that you’re hurting right now. Is there anything you need or any support I can offer to help you through this?”

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