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Evaluation of the Effects of Response Elaboration Training for Aphasia

2014-07-23 21:51:08 | BioPortfolio

Summary

The purpose of this study is to evaluate the effects of Response Elaboration Training (RET), which is a speech/language therapy for aphasia. The study is designed to determine whether verbal language production improves in terms of content and length of utterances as a result of treatment.

Description

Detailed Description:

Extended description of the protocol, including information not already contained in other fields, such as comparison(s) studied.

Example:

Sudden out-of-hospital cardiac arrest (OOH-CA) remains a significant cause of death, in spite of recent declines in overall mortality from cardiovascular disease. Existing methods of emergency resuscitation are inadequate due to time delays inherent in the transport of a trained responder with defibrillation capabilities to the side of the OOH-CA victim. Existing Emergency Medical Services (EMS) systems typically combine paramedic Emergency Medical Technician (EMT) services with some level of community involvement, such as bystander cardiopulmonary resuscitation (CPR) training. Some communities include automated external defibrillators (AEDs) at isolated sites or in mobile police or fire vehicles. A comprehensive, integrated community approach to treatment with AEDs would have community units served by these volunteer non-medical responders who can quickly identify and treat a patient with OOH-CA. Such an approach is termed Public Access Defibrillation (PAD).

Comparison(s): Community units trained and equipped to provide public access defibrillation in addition to optimal standard care, compared to community units trained to provide optimal standard care (recognition of out-of-hospital cardiac arrest, 911 access, and cardiopulmonary resuscitation).

The purpose of the proposed research is to thoroughly evaluate the effects of Response Elaboration Training (RET) with persons with aphasia. Specifically, the proposed research investigation is designed to delineate the outcomes that may be expected with RET. The study is also designed to improve outcomes in the area of stimulus generalization effects of treatment by testing a modification of RET designed to facilitate generalization. The specific experimental questions to be addressed are as follows:

- Will RET result in increased production of correct information units and increased length and changes in composition of utterances as measured in *trained and untrained picture descriptions; *story retells; *conversations with significant others/family members/friends; and *personal recounts?

- Will modification and extension of RET to additional training contexts result in further increases in production of CIUs and increased length and complexity of utterances?

- Will the effects* of RET vary among participants with fluent aphasia, participants with nonfluent aphasia who present with mild to moderate verbal production deficits, and participants with nonfluent aphasia who present with severe verbal production deficits?

* Effects = effects on production of CIUs and on measures of functional communication

- Will changes in measures of functional communication be observed following administration of RET?

A series of single-subject experimental designs across subjects, behaviors, and contexts will be conducted to address these questions. Twenty-four adults with chronic, moderate to severe aphasia secondary to unilateral, left-hemisphere brain-injury will serve as participants for this investigation.

Study Design

Allocation: Non-Randomized, Control: Uncontrolled, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Aphasia

Intervention

Response Elaboration Training

Location

VA Salt Lake City Health Care System, Salt Lake City
Salt Lake City
Utah
United States
84148

Status

Completed

Source

Department of Veterans Affairs

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-23T21:51:08-0400

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Medical and Biotech [MESH] Definitions

A type of fluent aphasia characterized by an impaired ability to repeat one and two word phrases, despite retained comprehension. This condition is associated with dominant hemisphere lesions involving the arcuate fasciculus (a white matter projection between Broca's and Wernicke's areas) and adjacent structures. Like patients with Wernicke aphasia (APHASIA, WERNICKE), patients with conduction aphasia are fluent but commit paraphasic errors during attempts at written and oral forms of communication. (From Adams et al., Principles of Neurology, 6th ed, p482; Brain & Bannister, Clinical Neurology, 7th ed, p142; Kandel et al., Principles of Neural Science, 3d ed, p848)

Financial support for training including both student stipends and loans and training grants to institutions.

A cognitive disorder marked by an impaired ability to comprehend or express language in its written or spoken form. This condition is caused by diseases which affect the language areas of the dominant hemisphere. Clinical features are used to classify the various subtypes of this condition. General categories include receptive, expressive, and mixed forms of aphasia.

Functional region comprising posterior part of the SUPERIOR TEMPORAL GYRUS in the dominant cerebral hemisphere (see CEREBRAL DOMINANCE) and often portions of the PARIETAL LOBE. Along with BROCA AREA it is important in SPEECH and LANGUAGE processes. A lesion in the area is associated with WERNICKE APHASIA and CONDUCTION APHASIA.

On the job training programs for personnel carried out within an institution or agency. It includes orientation programs.

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