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PANTHERS
CAUSES OF DYSLEXIA
MEMBERS
Levent Doğan
Metin Pulat
Nihal Dağdelen
Selin Tolunay
TOPICS
• What is Dyslexia?
• What are the brain activities in a dyslexic brain?
• What are the causes of dyslexia?
• How are people aware of dyslexia?
• What kind of law do some countries have about dyslexia?
INTRODUCTION
What is dyslexia?
• The term of dyslexia
• Definition of dyslexia
• Difficulties for dyslexic children
• Neurobiological in origin
What are the brain activities in a dyslexic brain?
CAUSES
What are the causes of dyslexia?• Genetic Factors
• Magnocellur Visual System
• Cerebellar Deficit Hypothesis
• Phonological Processing
• Acquired Dyslexia
• Problem with prenatal period
GENETIC FACTORS
• Dyslexic father = 40% chance
• 6th chromosome
MAGNOCELLUR VİSUAL SYSTEM
•Magnocellur and Parvocells
CEREBELLAR DEFICIT HYPOTHESIS
• Automizing repeated action
PHONOLOGİCAL PROCESSİNG
• Hearing only Word itself
ACQUİRED DYSLEXİA
• Acquired the condition
• Brain injuries
PROBLEM WİTH PRENATAL PERİOD
• Malnutrition
• Infections
• Medical drugs
HOW ARE PEOPLE AWARE OF DYSLEXİA?
• Awareness of parents
• Schools role for awareness in USA and Turkey
LAW
• For T.R. Ministry of Health-Disabilities Rates Ruler
20-30% of dylexic > disability
• In USA
Prevalence rates 10-15%
Several States have rules and law,but several not
LET’S TEST YOURSELF FOR DYSLEXIA
• Vinegrad Test
Average 12.7=dyslexic
Average 4.4=no dyslexic
To test more,
http://www.akademidisleksi.com/online-disleksi-testi/2/
REFERENCESYouman, M., & Mather, N. (2013). Dyslexia Laws in USA. The International Dyslexia Association, 63, 133-153.
Pevnzer, H. (2015). When Reading Isn’t Easy. Scholastic.com/ParentandChild, 64-67.
Hudson, R. F., High, L., & Otaiba, S. A. (2007). Dyslexia and The Brain: What does current research tell us? International Reading Association, 506-515.
Shaywitz, B. A., & Shaywitz, S. E. (2003). Dyslexia (Specific Reading Disability). Pediatrics in Review, 24(5). 147-152.
Shaywitz, B. A., & Shaywitz, S. E. (2008). Paying Attention to Reading: The Neurobiology of Reading and Dyslexia. Development and Psychopatology, 20. 1329, 1349.
Gilger, J. W. (2008). Some special issues concerning the genetics of dyslexia: Revisiting multivariate profiles, comorbidities, and genetic correlations. In G. Reid, A. Fawcett, F. Manis and L. Sieegel, The Sage Dyslexia Handbook. London:Sage.
Snowling, M. J. (2000). Dyslexia(2nd ed.). Oxford: Blackwell.
Reid, G. (2011). Dyslexia:A complete guide for parent and those who help them (2nd ed.).
Stein, J. (2008). The neurobiological basis of dyslexia. The Sage Dyslexia Handbook. Londan: Sage.
www.medicalnewstoday.com
www.disleksi.info
Olulade, O. A., Napoliello, E. M., & Eden, G. F. (2013). Abnormal Visual Motion Processing is not a Cause of Dyslexia. Neuron, 79(1). 180-190.