From Wikipedia, the free encyclopedia. A dopamine agonist is a compound that activates dopamine receptors in the absence of that receptor's physiological ligand, the neurotransmitter dopamine. Dopamine agonists activate signaling pathways through the dopamine receptor and trimeric G-proteins, ultimately leading to changes in gene transcription. 1 Uses.
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The Picture Exchange Communication System (PECS) is an invaluable resource, which can be used with children and young people with Autism Spectrum Conditions and other communication difficulties. PECS does not require complex or expensive materials and can easily be used in school, home or in the community.ECS is a type of Augmentative and Alternative Communication that uses visual symbols to teach the learner to communicate with parents, carers, teachers and peers. The aim is to teach intentional, functional communication and to allow users to communicate their wants and needs. The PECS approach occurs in 6 phases.