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VISION. HOW DOES VISION LOSS AFFECT BEHAVIOR?. THE VISUAL SENSE HELPS TO Inform (what is happening over there?) Locate (Where am I? Where are others?) Instruct (How do I stand? Sit? Gain notice?) Motivate (How do I get what I want?) Anticipate (What happens next?).
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VISION HOW DOES VISION LOSS AFFECT BEHAVIOR?
THE VISUAL SENSE HELPS TO Inform (what is happening over there?) Locate (Where am I? Where are others?) Instruct (How do I stand? Sit? Gain notice?) Motivate (How do I get what I want?) Anticipate (What happens next?) IMPACT OF VISION LOSS
DISTANT SENSES • VISION • HEARING • THESE SENSES ALLOW A PERSON TO ACCESS OBJECTS AND INFORMATION THAT ARE NOT IN DIRECT CONTACT WITH THE BODY
BLINDNESS • 80% of blindness is treatable/preventable • Leading causes: cataract, trachoma (infection of the cornea), nutritional deficiencies, refractive errors • Preventable blindness is caused by trauma, diet, environment & infections
VISION FOR COMMUNICATION • IN ORDER TO LEARN LANGUAGE, CHILDREN WHO ARE DEAFBLIND MUST DEPEND UPON OTHERS TO MAKE LANGUAGE ACCESSIBLE TO THEM. • BARBARA MILES
CHALLENGES • HOW TO MAKE SENSE OF THE ENVIRONMENT • HOW TO COMMUNICATE MEANINGFULLY WITH FAMILY AND OTHERS • HOW TO MOVE ABOUT THE ENVIRONMENT INDEPENDENTLY
ETIOLOGY • GENETIC • DISEASE • SYNDROME • PREMATURITY
ASSESSMENT OF VISION • OPTHOMOLOGICAL • FUNCTIONAL • CLASSROOM CHECKLIST
ASSESSMENT OF COGNITION: STAGE 1, OBJECT CONCEPT • DEAF • Attach cup with plastic chain to arm of high chair & reinforce process for retrieving cup. Child grabs chain/looks. Adult models MORE • When child signs MORE as a request, adult models acknowledgement: YOU WANT MORE
VARIATIONS OF LANGUAGE INPUT • MORE • YOU WANT MORE • MORE MILK • WANT MORE MILK • WANT DRINK MILK
VARIATIONS OF REQUEST OR RESPONSE • YES (NONVERBAL OR VERBAL) • MORE • MILK • DRINK • WHEN CHILD INITIATES, ADULT COMMENTS AND EXPANDS
ADAPTATIONS FOR A CHILD WHO IS DEAFBLIND • CHOOSE THE MOST SALIENT SIGN FOR STAGE I INPUT: • WANT RATHER THAN MORE • DRINK RATHER THAN MILK
PROGRESSION FROM STAGE I TO STAGE II • WANT • WANT + DRINK • WANT + DRINK + MILK MODEL FROM THE CHILD’S PERSPECTIVE UNTIL STAGE III IS ACHIEVED
HOLOPHRASTIC WORDS • “KINGO” • BLAME • SHARE • WHERE IS HE?
ENVIRONMENTAL CONSIDERATIONS • AMOUNT AND QUALITY OF LIGHT • BEST DISTANCE FROM VISUAL TARGET • BEST SIGNING PLACEMENT • CAN CHILD SHIFT GAZE? • IS BACKGROUND DISTRACTING? (VISUAL CLUTTER)
USE OF PICTURES • ENLARGED PHOTOS • LINE DRAWINGS (BLACK AND WHITE) • RAISED SURFACE, MAT FINISH • RAISED LINES
VICARIOUS LEARNING • REPEATED, MEANINGFUL EXPERIENCES WITH PEOPLE AND OBJECTS • DAILY NATURAL ROUTINE • SALIENT ACTIVITIES
COGNITIVE HIERARCHY • REAL OBJECTS • OBJECT AS SYMBOL • GRADUAL MOVE FROM 3-D TO 2-D • LARGE PRINT (BRAILLE EXPOSURE?)
MENTAL MAPPING • ENVIRONMENTAL AWARENESS • BODY AWARENESS, MOVEMENT • CONCEPT DEVELOPMENT • SOCIAL AWARENESS
PRIMARY GOALS • INDEPENDENT COMMUNICATION • INDEPENDENT MOBILITY • USE OF INTERPRETERS, AIDES, ASSISTIVE DEVICES
ENVIRONMENTAL SUPPORT • “CHANGING THE ENVIRONMENT TO INCREASE MOVEMENT AND EXPLORATION AT AN EARLIER AGE WILL ENHANCE ALL ASPECTS OF A CHILD’S DEVELOPMENT, INCLUDING EMERGENT LITERACY.” • J.M. STRATTON (1996) JVIB
TEACHER’S ROLE • CREATE A SAFE, PREDICTABLE ENVIROMENT WITH MEANINGFUL SPACES • ENCOURAGE HAND ACTIVITY FOR EXPLORATION AND COMMUNICATION • ALLOW STUDENTS TO ACT, NOT BE ACTED UPON • OBSERVE EACH CHILD OBJECTIVELY
OBSERVATION • “AIR FORCE COLONEL JOHN BOYD;S TERM “OODA LOOP” STATES THAT SUCCESS IS A MATTER OF OBSERVING, ORIENTING, DECIDING, AND ACTING FASTER THAN THE OPPONENT.” • BOYER, P. (2003) THE NEW WAR MACHINE. NEW YORKER, JUNE 30, P. 55-71.
DECISION MAKING • 1. EMOTIONAL REACTION • 2. JUDGMENT AND EMOTION • 3. JUDGEMENT TEMPERS EMOTION • 4. OBJECTIVE CONSIDERATION OF OPTIONS • 5. DECISION
PROCESS • MAKE THE PROCESS CLEAR • TASK ANALYSIS • WHAT ARE THE SMALL, INCREMENTAL STEPS THAT ARE REQUIRED TO COMPLETE A TASK? • BREAKDOWN OF THE PRELIMINARY STEPS FOR EACH TASK, FOR EACH CHILD • FAMILY INVOLVEMENT FOR CARRY-OVER
PRODUCT • REQUEST OR RESPONSE BASED ON CLEAR KNOWLEDGE OF THE PROCESS
ASL COMMUNICATION OPTIONS • CHILD’S HAND UNDER ADULT’S HAND • CHILD’S HAND OVER ADULT’S HAND • FINGERSPELLING • INDEPENDENT INITIATION OF SIGNED COMMUNICATION • ATTENTION GETTING • EXPRESSIVE • RECEPTIVE
ORAL COMMUNICATION OPTIONS • TADOMA • SPEECH -- VIBROTACTILE SUPPORT • AUDITORY AMPLIFICATION • COCHLEAR IMPLANT
STEPS TOWARD MOBILITY • VARY THE CARRY • BODY TO BODY CONTACT • BACK STRENGTHENING • ROLLING OVER • CRAWLING, CREEPING, SCOOTING • SITTING WITH SUPPORT—BALANCE • REACHING
INDEPENDENT MOBILITY • STANDING • WALKING WITH ADULT SUPPORT • WALKING WITH OTHER SUPPORT • CRUISING • WALKER, CANE • SIGHTED GUIDE
TERMS • CO-ACTIVE MOVEMENT • ANTICIPATORY SET • PURPOSEFUL MOVEMENT