Gender Differences in Learning and Emotional Memory
Here's the key figure from the study of how men and women navigated their way out of a virtual maze. In this study, it's interesting to note that completely different brain regions were used by men and women to navigate their way. The sites in men correlated with geometric orientation (approximate) whereas the sites in women were associated with recall of landmarks (exact). Since then (link below) other investigators have found that both men and women are capable of using either navigation methods.In follow up Jodi's question re: Simon Baron-Cohen "extreme male" hypothesis of autism (link below), we believe that this theory is just a working model for his group. Baron-Cohen has pursuing a line of investigation regarding prenatal exposure to testosterone. For all practical purposes, the "male hypothesis" doesn't help with any decision-making regarding autism. It is speculative.
Other studies have commented about gender-related differences emotional behaviors, but when it comes to autism, families should realize that the causes are multifactorial. Impaired emotional responsiveness may occur due to defective empathy, impaired visual processing (misreading faces), impaired auditory processing (mishearing auditory information, tone of voice), impaired language processing or various combinations of the above.
Here's a key figure from the emotional memory paper. On the left is the brain (amygdala) activation from women remembering an emotionally powerful photograph. On the right is the brain activation seen in men. Although men and women appeared to have similar levels of emotional responsiveness initially viewing photographs, later the women's group had stronger emotional recall for the pictures, and it correlated with this increased activation in the amygdala.Sex differences in the neural basis of emotional memories
Are There Gender-specific Neural Substrates of Route Learning from Different Perspectives?
Gender differences in navigation
Men Do Hear -- But Differently Than Women
Men, Empathy, and Autism
Boys fall behind girls in grades
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Homeschooling and E-learning...Our Experience
E-learning: Our favorite E-learning options have been those that provide some flexibility in work submission, online discussion, and regular feedback from teachers. Discussions include virtual classrooms (talking to your computer, click your hand to speak) with blackboards, slides, and taped classes that can be reviewed later. E-learning programs without a 'live person' may present more problems with motivation, though some self-paced programs like Edventures.com (for Lego building, engineering, robotics) also offer some forums, interest groups, and a 'merit' pyramid to work through.
Northwestern Center for Talent Development - an award-winning fun and whimsical course on the Hobbit. Weekly projects involved a selection of options - and choice of writing, drawing, composing music, or cooking. The best parts were interesting questions delving into the characters and themes of the book. The worst - technical glitches when the teacher was not able to be present to lead discussions.
Stanford EPGY Writing - hard work, but enjoyable course involving weekly online discussion (talk into your computer's microphone) revising writing with teacher, and critique in class. Emphasis is on the mechanics and artistry of writing.
Great Books Academy Online - weekly online discussion (talk into your computer) using the Socratic method and the Touchstones materials (Great Books)- Open ended discussion questions emphasize critical thinking and examining assumptions. The director seems flexible with grade skips- a plus for gifted students.
Edventures.com - Various courses with Lego building - Architecture, CAD, Robotics, Machines, Electricity. Each lesson is fairly short, but step-by-step instructions, introduction to design principles, and forums. Progress assessed by uploading pictures, journal entries, and multiple choice questions.
Other online resources:
www.acmeanimation.org : Because our son (age 10) wants to be an digital animator, animation is a large part of his arts program. A fabulous free resource is acmeanimation.org Professional animators from Disney and Pixar (as well as anyone else - largely art students or high school students taking a class) comment on animations that you upload. There is an Acme Trek challenge - where the animation challenges get more complicated. We use Toon Boom Studios which exports as a Quicktime file.
www.unitedstreaming.com Online streaming movies to supplement Science, French, History - $100/year with homeschooling discount - gets you access to 4000 excellent full-length streaming videos. Also unitedstreaming is aiming to have 1/2 of movies close captioned - excellent for children with auditory processing problems. Many of the videos come with full lesson plans, text of video, quizzes and problem sets. These accompanying lesson plans are much better than the ones offered by Mentura. We had subscribed to Mentura, but gave it up.
www.apexvs.com : Apex Virtual School...have mainly used boxermath.com and Beyond Books for History and English Literature. Occasional science topics in Biology course (lesson plans presented as Flash movies -especially helpful with molecular biology). Without a 'live' class or teacher, it has been more difficult to engage.
For non-Elearning, we have used conventional textbooks (mostly bought used - for instance from Textbook Heaven) for French and Science, Spielvogel text for World History (also some Tapestry of Grace), Math with excerpts from Singapore Math and Continental Press workbooks, Grammar and Vocabulary with workbooks from Continental Press and Caesar's English (Royal Fireworks Press). Handwriting without Tears.
We have a local homeschool resource which has a wide selection of course offerings taught by staff teachers, yet flexibility in course selections and reasonable time expectations. Many tech options are available even for the lower grades (RPG creator, lego courses and robotics league, digital animation, web design, cinematography, even Broadcast News), foreign language (Spanish, French, Japanese, Latin), as well as science, language arts, math, music, drama, and arts.
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Friday, February 11, 2005
Exact vs. Approximate Problem Solving - Another Learning Styles?
Often traits of precision (being exact, detail-oriented) vs. big-picture (gestalt) orientaion were thought to be personality-based. But there are advantages and disadvantages of both approaches, so that the ideal way to approach problems would seem to be able to have both tools in your arsenal so that you could choose which approach might be most successful in a particular situation.
The advantages of 'exact' problem solving seem somewhat self-evident. It is precise, allows for greater reproducibility, builds on prior knowledge, and can result in rapid processing with repetition.
Approximate problem solving can also be important though. Because it is representational and approximate, it may more flexible in terms of considering information, it may be more extrapolatable to different situations, and it may provide more accurate information when not all the facts are known or some information is incorrect.
If you teach, it is important to be aware of your orientation (detail vs. gestalt), because it may color how you view your pupil. Detail-oriented teachers may see gestalt students as sloppy and flakey. Whereas as gestalt-oriented teachers may see their precision-orientated students as overly fastidious and rigid. In practical matters as well, there are many situations in which your most obvious way to solve a problem (exact vs. approximate) will obscure your vision from the opposite point-of-view.
How do you do long division? Do you know your facts and perform the stepwise calculations as you learned them? If so, you may not see how your student would prefer to use reverse multiplication and estimate to derive her answer.
How do you figure out where you are when you're lost? Do you retrace your steps, count stop signs or look for landmarks? (exact) Of so, you may have a hard time understanding why your spouse prefers to use geometry, visualize an internal 'aerial' map and head out driving 'over there somewhere'.
The truth is, within every domain their are great men and women on both sides of the this exact-general divide. There are Nobel prize winners or other eminent men and women in science, art, history, economics, engineering, literature who have use either strategy to break new ground using exact or general tools of inquiry.
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Understanding the Biology of Autism - Abnormal Connectivity and Sensory Motor Processing
Autism's Cause
Sensory Processing Problems and Postural Control Problems in Autism
Sensory Motor Problems in Autism and Mild "CP"
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Thursday, February 10, 2005
What Does Brain Research Tell Us About Learning Styles?
For instance, are you familiar with Stroop tests? You're supposed to try to ignore what the word 'says' and just name the color. Sometimes these tests are used to look at attentional or executive function capabilities.
In fact, there are wide variations among individual subjects as they perform the Stroop task. We've excerpted two 'brains' for an example. The subject on the left appeared to use a frontal-parietal lobe approach (executive function) in selection, whereas the person on the right was able to focus him- or herself visually.
Individual Differences fMRI Stroop
But some of the most exciting findings provide insights about how different pathways can be activated depending on the strategy chosen. In this study from Dehaene and his group, blue areas were activated when exact calculations were performed to solve a math problem, whereas yellow areas were activated when approximations were performed. It might be that next generation of neuroteachers will be able to direct or cultivate flexible approaches to problem solving depending on student strengths or disabilities. Advanced thinkers are often aware of the different routes they can use to solve problems. Neurolearning for them may mean expanding their arsenal of tools for creative or analytical work.
fmriMathStrategies
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Auditory Processing and E-Learning
There are several ways to present text, but E-Learning (electronic or computer-based learning, also written eLearning) will be an ideal resource for many children. Visual information, both text and pictures, can be tightly linked to auditory information on computer. Learning is self-paced. When acoustic information is presented, it comes from a fixed location straight-ahead with no competing sounds (children with asymmetric hearing have difficulty distinguishing words when speakers are moving or they turn away from them). Most films can be presented with close captioning (for instance unitedstreaming.com), and many online classroom chats have the flexibility of text-based entry or online 'talking.' Online classrooms are often preferable for children with subtle auditory processing difficulties because there is less background noise from fellow classmates, a more orderly style of contributing (click on a hand icon to raise your hand), and more time to answer questions (individuals with auditory processing often benefit by delays or a slightly slower pace to interactive conversations). Many children who are quite silent regular classrooms "find their voice" online.
The benefits of E-Learning for children with auditory processing disorders can be immense. These children often gravitate quite naturally to the computer. It's important for more people to realize the many reasons why they do.
Excess teacher talk swamps children
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Wednesday, February 09, 2005
Imagery - Integration of the Senses and Movement
Imagery activates perceptual areas and MT (movement); Abstract
A Primer on the Neurobiology of Imagery
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Imagery in Motor Learning - More Imagery with Expertise
Imagery is a powerful guide to learning - it unites diverse brain areas and provides patterns for coordinated actions that may be used for other purposes in the future. One of the reasons that sensory processing disorders can have such a profound effect on behavior (children may develop anxiety, avoidance, isolation), is that these children have fewer opportunities to build coordinated sensory-motor patterns as they interact with their environment, so they may always appear to encountering things for the first time.
Better Imagery with Expert Dancers
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Flashes from the Past: A Person with Powerful Auditory Imagery
This was Ludwig van Beethoven, a master of auditory imagery who composed the Ninth Symphony when completely deaf. About his composing he wrote: "I carry my thoughts about with me for a long time...before writing them down...once I have grasped a theme. I shall not forget it even years later...in my head...it grows, I hear and see the image in front of me from every angle...and only the labor of writing it down remains...I turn my ideas into tones that resound, roar, and rage until at last they stand before me in the form of notes."
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Computer-Based Training Improves Auditory Processing...Especially Those with Background Noise Problems
The other online paper below shows how Earobics (a simple software - even Step 2) was able to improve the timing of brain cortical responses in children with learning problems. Interestingly, the effect was most notable in the LD group that also had difficulty hearing in the presence of background noise. The timing problems in background noise also improved with auditory training, although the Earobics software does not really direct its training for this task. The results are exciting because they show that even with fairly crude auditory training therapy (Earobics is really a simple program), focused perceptual training works for brain-based hearing problems
Computer-Based Training for Auditory Processing
myDNA.com - News: New tool for auditory processing disorder
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Tuesday, February 08, 2005
Computerized Training of Working Memory in Children with ADHD
There are some commercially-based computer programs based in the States, but the ones we have been able to sample were too simple for most of the children we see. Working memory is highly trainable, but the exciting aspect of this study is that the behavioral and inattentive symptoms also subsided as working memory increased.
Increasing Working Memory for ADHD
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Dysgraphia as Isolated Spelling Disorder
Because the situation regarding spelling disabilities is the way it is, occasional reports like the one below are valuable. It's reports the case of a woman who developed spelling problems after a heart attack. The importance for us is that is shows that focal brain injury can result in a focal spelling disability. This former secretary had excellent sentence copy, comprehension, working memory, spontaneous speech, and reading, but she couldn't write well to dictation. She probably would have problems with spontaneous writing as well.
Surprisingly, even school professionals have been confused about whether dysgraphia exists if a student can copies sentences well. For some reason, dysgraphia hasn't gotten as much attention as other learning disabilities.
Spelling difficulties may be due to problems with phonology (the sounds that make up words), weakness of visual word form (visual memory for words), or general weaknesses in working memory. Most often spelling disabilities are seen in association with dyslexia, but they can also be seen in the setting of focal brain injury, premature birth, or head trauma.
Isolated Spelling Disability from Brain Injury
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Links to Help with Organization and Time Management
The homework helps are also a great idea. Children who are not naturally organized, will need to be conditioned into a routine, and time reminders may be helpful. Many studies have shown that children with learning difficulties may have difficulty gauging the processing of time.
Assistive Technology for Students with Mild Disabilities
Calendar software
Hi-Tech and Low Tech Solutions: Time Management Basics for the Person with ADHD
Teaching Study Skills - TeachersAndFamilies
Organizational Skills
Learning Disabilities OnLine: LD In-Depth: 10 Tips for Developing Good Organizational Skills