Examining motivational deficits in schizophrenia with an Effort Discounting Task

Wesleyan University
Middletown, Connecticut
PsychologyNeuroscience
Open Access
DOI: 10.18258/4169
$250
Raised
100%
Funded on 2/19/15
Successfully Funded
  • $250
    pledged
  • 100%
    funded
  • Funded
    on 2/19/15

About This Project

We aim to isolate specific information-processing deficits that contribute to amotivation in schizophrenia patients, specifically with regard to valuation within a risk-reward paradigm. Such knowledge could be used to design therapeutic programs that utilize incentives in order to help patients take scheduled medications or adhere to rehabilitation procedures, thus improving the efficacy of treatment.

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What is the context of this research?

Amotivation has long been regarded as a negative symptom of schizophrenia, however the extent to which amotivation might contribute to social and behavioral impairment has been considerably marginalized in both literature and therapy. Increasing evidence suggests that amotivation in many schizophrenia patients is highly correlated with the severity of other negative symptoms such as inattention, poverty of speech, anhedonia and apathy.

The Effort Discounting Task (EDT) uses behavioral economic principles in order to quantify motivation. Participants of this study will make decision on the EDT about how much effort they would like to exert in order to earn varying amounts of money. The EDT has been established in prior studies in the Neuroimaging Center at the University of Pennsylvania.

What is the significance of this project?

The motivational deficits of schizophrenia patients' can limit their ability to take scheduled medications or benefit from cognitive-behavioral therapy. Thus amotivation represents a primary target for remediation in schizophrenia. Additionally, while the symptoms of schizophrenia vary greatly between patients, amotivation is most commonly found. The use of an Effort Discounting Task can offer insight into how motivational deficits might manifest differently within certain types of schizophrenia and inform the creation of specially designed therapeutic programs.

What are the goals of the project?

The end product of this research will be a series of recommendations for the design of a therapeutic program that utilizes incentives in order to help schizophrenia patients take scheduled medications or adhere to rehabilitation procedures, thus improving the efficacy of treatment.

In addition, the Effort Discounting Task will be further established as a valid behavioral economic measure of motivation. The Effort Discounting Task has many potential applications that go beyond amotivation in schizophrenia.

Budget

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$80 will be needed to purchase "Presentation," an application on which the Effort Discounting Task will be programmed. "Presentation" has been used in other neuroscience studies involving behavioral economics.

$170 will be needed to compensate participants for their performance on the Effort Discounting Task. Participants are encouraged to make realistic decisions on the Effort Discounting Task, and offering real money will ensure that their choices are truthful.

Meet the Team

Matthew Siegelman
Matthew Siegelman

Team Bio

Hometown: Philadelphia, PA


Lab Notes

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