Glossary R

Rett's Disorder also called Rett Syndrome refers to a pervasive developmental disorder , occurring only in females, an X-linked dominant neurological disorder that affects only girls

Rett’s disorder refers to a pervasive developmental disorder characterized by a deceleration of head growth in the early years, a loss of previously acquired purposeful hand skills with subsequent development of stereotyped hand movements, a loss of social engagement, poorly coordinated gait or trunk movements, severe impairments in expressive and receptive language development, and severe psychomotor retardation .

reuptake refers to the action by which a Neurotransmitter is quickly drawn back into the discharging Neuron after being released into a Synaptic cleft.

Reversal Design refers to the type of experimental design in which an Intervention is introduced, withdrawn, and then reinstated, and the behavior of a participant is examined on and off the treatment .

reversal design refers to a type of experimental design in which an intervention is introduced, withdrawn, and then reinstated, and the behavior of a participant is examined on and off the treatment

Reverse transcriptase-polymerase chain reaction (RT-PCR) is a a highly sensitive technique for the detection and quantitation of mRNA (messenger RNA). The technique consists of two parts:

Reversibility refers to a principle of training that describes the temporary Nature of a training effect; adaptations to training are lost when the training stops.

rheumatoid arthritis refers to painful, degenerative disease in which the immune system essentially attacks itself, resulting in stiffness, swelling, and even destruction of the joints. Cognitive-behavioral treatments can help relieve pain and stiffness.

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