RB Warmups: Difference between revisions

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Link to: [[:Category:OSERB]]
Link to: [[:Category:OSERB]]


Some warmup exercises are recommended in a [https://www.youtube.com/watch?v=s6TUkkZoEDw Youtube video] and are summarized below:
'''Duration: About 10 minutes'''
 
Some drawing warmup exercises are recommended in a [https://www.youtube.com/watch?v=s6TUkkZoEDw Youtube video] and are summarized below:


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To these exercises I have added a few more.
To these exercises I have added a few more.


Performing these exercises forces the eye and hand to work together.  They are to be done as quickly as possible to force the eye and hand to work with precision at speed in different orientations.
Performing these exercises forces the eye and hand to work together.  They are to be done as quickly as possible to force the eye and hand to work with precision at speed in different orientations.


{| class="infobox" cellspacing="5" style="width: 12em; text-align: left; font-size: 100%; line-height: 1.5em;"
{| class="infobox" cellspacing="5" style="width: 12em; text-align: left; font-size: 100%; line-height: 1.5em;"
! colspan="2" class="infobox-image" | [[File:_drawing_warmups_2_hi_f.jpg|750px|2nd level warmups]]
! colspan="2" class="infobox-image" | [[File:_drawing_warmups_2_hi_f.jpg|750px|2nd level warmups]]
|-
|-
| colspan="2" |  Quick eye-hand warm-up exercises. a. Zaps; b. Suns; c. Arrows; d. Arrow-Sun.
| colspan="2" |  Additional eye-hand warm-up exercises. a. Zaps; b. Suns; c. Arrows; d. Arrow-Sun.
|-
|-
|}
|}


The first set of patterns reminded me of a set of basis functions with a low spectral frequency.  The second set was designed to create some other functions with coordinated movements at higher frequencies.
These help the eye and hand adapt to different rhythms with gradually increasing complexity.  The rhythmic structure of a contour is very important for expressing underlying structure in a 3-D object.
 
'''Analysis'''
 
The first set of patterns reminded me of a set of basis functions with a single spectral frequency.  The second set was designed to create some other functions for coordinated movements with a wider frequency band, as [https://en.wikipedia.org/wiki/Wavelet wavelets] relate to sinusoidal waves.  This increments the complexity of eye-hand coordination by a small factor.  The last two figures are somewhat challenging to draw accurately at speed.


Compare these figures with an illustration from the book "Reading in the Brain" by Stanislas Dehaene (2009).  This figure shows a progression of increasing visual complexity as progressive layers of neurons associate primitive shapes into more complicated shapes in order to recognize letters, pairs of letter, and then whole words.  In the book he actually maps out the locations in the brain where these processing steps occur for reading.
Compare these figures with an illustration (below) from the book "Reading in the Brain" by Stanislas Dehaene (2009).  This figure shows a progression from bottom to top as progressive layers of neurons associate primitive shapes into more complicated shapes.  Here the goal is to recognize letters, pairs of letters, and then whole words.  In the book he actually maps out the locations in the brain where these processing steps occur in reading.


We make an analogy between these eye-hand exercises and shape recognition in reading. Supposing the existence of analogous layers of neurons responsible for coordinating eye-hand movement we start with simple movements and then combine them into more complicated forms.
We make an analogy between eye-hand movements and shape recognition in reading. Assuming the existence of analogous layers of neurons responsible for coordinating eye-hand movement we start with simple movements and then combine them into more complicated forms.  By practicing with shapes with increasing levels of complexity we can develop precision in the intermediate layers in the (hypothetical) eye-hand motion system.


{| class="infobox" cellspacing="5" style="width: 12em; text-align: left; font-size: 100%; line-height: 1.5em;"
{| class="infobox" cellspacing="5" style="width: 12em; text-align: left; font-size: 100%; line-height: 1.5em;"

Latest revision as of 10:14, 2 May 2024


Link to: Category:OSERB

Duration: About 10 minutes

Some drawing warmup exercises are recommended in a Youtube video and are summarized below:

1st level warmups
Quick eye-hand warm-up exercises. a. Ten Strokes; b. Cartwheels; c. Atoms; d. Coin Flips; e. Hatching; f. Connect the Dots; g. Half Ellipses; h. Curved Hatching.

To these exercises I have added a few more.

Performing these exercises forces the eye and hand to work together. They are to be done as quickly as possible to force the eye and hand to work with precision at speed in different orientations.

2nd level warmups
Additional eye-hand warm-up exercises. a. Zaps; b. Suns; c. Arrows; d. Arrow-Sun.

These help the eye and hand adapt to different rhythms with gradually increasing complexity. The rhythmic structure of a contour is very important for expressing underlying structure in a 3-D object.

Analysis

The first set of patterns reminded me of a set of basis functions with a single spectral frequency. The second set was designed to create some other functions for coordinated movements with a wider frequency band, as wavelets relate to sinusoidal waves. This increments the complexity of eye-hand coordination by a small factor. The last two figures are somewhat challenging to draw accurately at speed.

Compare these figures with an illustration (below) from the book "Reading in the Brain" by Stanislas Dehaene (2009). This figure shows a progression from bottom to top as progressive layers of neurons associate primitive shapes into more complicated shapes. Here the goal is to recognize letters, pairs of letters, and then whole words. In the book he actually maps out the locations in the brain where these processing steps occur in reading.

We make an analogy between eye-hand movements and shape recognition in reading. Assuming the existence of analogous layers of neurons responsible for coordinating eye-hand movement we start with simple movements and then combine them into more complicated forms. By practicing with shapes with increasing levels of complexity we can develop precision in the intermediate layers in the (hypothetical) eye-hand motion system.

Deheane figure
Assembly of simple visual responses into letters and words (from bottom to top) from Dehaene, "Reading in the Brain" pg. 151.