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Explore different switch uses and their benefits for young children, including single switch, multiple switch, and scanning use. Learn about reinforcement hierarchy, goal setting, and equipment basics for effective intervention. Presented by Cindy Cavanagh, CCC-SLP, ATP.
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Switch Use for Young Children Cindy Cavanagh, CCC-SLP, ATP Assistive Technology Mississippi Bend AEA 729 21st St. Bettendorf, IA 52722 ccavanagh@aea9.k12.ia.us 563-344-6321
Demonstration of switch useFeaturing:Quack Quack Duckyand a pillow switch
The word “event” refers to: • Activation of a toy • Voice output that results in a response from a person (BIG Step by Step) • Discontinuation of an event (Big Step by Step and Step by Step) • Activation of an appliance (e.g. fan) • Activation of an appliance that results in another event by people (e.g. fan and then everyone yells, “Turn it off!” • Simultaneous activation of two or more events (toys/appliances, etc.) (e.g. music and lights)
Three areas • Single Switch Use • Multiple Switch Use • Switch Scanning Use
Single Switch Use: Purpose Types of Learning • Teach control of the body • Teach the relationship between a movement and an event • Provide independent recreational opportunities • Provide easy access to an event • Provide a foundation for expansion of event control (eventually moving to multiple selections) • Provide experience with symbolic communication (receptive and expressive)
Multiple Switch Control • Teach greater control of the body • Teach the relationship between a particular movement and an event • Provide selection of independent recreational opportunities • Provide easy access to two or more events • Provide multiple event control • Provide experience with symbolic communication (receptive and expressive)
Multiple Switch Use: Purpose • Provide expansion of all of the previous items in the environment of control over two or more events • Provide opportunity for greater personal decision-making
These are the result of using switch control of events: • Interaction with other children • Opportunity to engage in academic activities • Opportunity to demonstrate learning • Preparedness for new learning • Development of the independence “spark” • Opportunity for independent enjoyment • Opportunity for personal decision-making
Switch Scanning Use (auditory or visual): Purpose • Provide all of the previous items in a different mode of event selection • Expand event control for children who do not yet have the physical control for multiple switch access Featuring: Firefly; Bubble Blower; Vibrating Bug
Baseline Information and Goal Setting • What can this child do now? • What do we believe this child can do if I help him/her learn to control events? • How will this impact this child’s general development? (i.e. How does this fit into other goals?) • How does this fit into the long-term plans for this child?
Baseline Information and Goal Setting (cont.) • Establishment of reinforcement hierarchy What is the reinforcement hierarchy? • Consider general sensory trends • Consider specific events (toys, routines, etc.) • Consider day-to-day variability • Consider variability across a day • Consider influences Reinforcement Hierarchy (Things I like and things I don’t like)
Baseline Information and Goal Setting (cont.) • Establishment of reinforcement hierarchy (continued) • Considerations for the non-preferred items on the reinforcement hierarchy • Must be something the child does not prefer • Must be something that is neutral or good for the child • Must be something that fits into the context of an activity (e.g. washing face off while eating)
Baseline Information and Goal Setting (cont.) Conditions • Baseline conditions and considerations for selection • Condition 1: Switch unattached • Condition 2: Switch unattached – Instruction to activate • Condition 3: Switch attached to high reinforcement • Condition 4: Switch attached to low reinforcement Progression of Switch Use Sample Goal
Intervention • Seating/positioning • Experience with movement • Switch type (including size, texture, color) • Switch location • Reinforcement value (including novelty) • Pre-activity intervention (e.g. PT, movement, sensory stimulation, etc.) • Time of day • Length of activity • Amount of experience with the activity • Environmental competition for attention Interventions to consider
Equipment Basics • Battery interrupters • Batter controller • Power unit for electrical devices • Battery-powered devices • Electrical (plug-in) devices • Switches • Computer switch interface • Universal mounting system • Symbol system Basic Equipment
Additional Items • These items may not be needed in every room and access could be through a district cache. • Variety of switch types • Varied toys/appliances • Software • Variety of mounting options • Standardized tactile system (IBSS)
Switch-Activated Item MatrixNote: consider comfort level of students when using each item • Sound • Switch-activated CD player • Visual movement • Fan blowing streamers • Visual movement and sound • (fan blowing packing peanuts – children in the room pick them up) • Elefun • Vibration • Vibrating Bug • Firefly Switch-Activated Items Matrix (SAIM)
Switch-Activated Item Matrix • Steady Light • Base light • Flashing/Moving Light • Flashing base light • Disco lights/mood lights • Brief Sound/light • Polaroid camera • Airflow • Fan • Smell • Temperature (hot/cold/tepid) • Body movement
Examples of Computer softwarefor single and two-switch development: • SimTech • Switch Wars • Switch Kids • Switch Puzzle #6 • IntelliTools • Patterns • Scenes • Pictures • Living Books • Arthur’s Teacher Trouble
Switches • Pressure • Toggle • Mercury • Voice • Temperature • Muscle movement • Light interruption
Mounts • Specific to switches • Universal • Specially designed
The Assistive Technology Loan Library (ATLL) • Web-based checkout of appliances, toys and control units • Switch checkout through AT • Mount checkout through AT • Consultation available through AT
Development of a local library • Solicitation of devices • Fund-raising • Housing of devices and checkout • Upkeep/batteries • Weeding and continued acquisition
Transition of ATLocate forms for transfer of assistive technology at: • www.aea9.k12.ia.us