Moderate Stability among Delay, Probability, and Effort Discounting in Humans
Por:
Escobar, Gisel G., Morales-Chaine, Silvia, Haynes, Jeremy M., Santoyo, Carlos, Mitchell, Suzanne H.
Publicada:
1 ene 2023
Ahead of Print:
1 feb 2023
Resumen:
The stability of delay discounting across time has been
well-established. However, limited research has examined the stability
of probability discounting, and no studies of the stability of effort
discounting are available. The present study assessed the steady-state
characteristics of delay, probability, and effort discounting tasks
across time with hypothetical rewards in humans, as well as whether
response characteristics suggested a common discounting equation.
Participants completed delay, probability, and effort discounting tasks
on three occasions. We found moderate relative stability of delay and
probability tasks, and similar evidence for absolute stability across
time for all tasks. The interclass correlations coefficient showed some
correspondence across time points and tasks, and higher levels of
between subject variability, especially for the effort discounting task,
suggesting trait level variables has a stronger influence on performance
than state level variables. Performance on the delay and probability
tasks were moderately correlated and similar mathematical functions fit
choice patterns on both tasks (hyperbolic), suggesting that delay and
probability discounting processes shared some common elements. Lower
correlations and different function fits suggested that effort
discounting involves more unique features.
Filiaciones:
Escobar, Gisel G.:
Univ Nacl Autonoma Mexico, Fac Psychol, Univ Ave 3004, Mexico City 04510, DF, Mexico
Univ Nacl Autonoma Mexico, Fac Higher Studies Iztacala, Tlalnepantla, State Of Mexico, Mexico
Morales-Chaine, Silvia:
Univ Nacl Autonoma Mexico, Fac Psychol, Univ Ave 3004, Mexico City 04510, DF, Mexico
Haynes, Jeremy M.:
Utah State Univ, Logan, UT 84322 USA
Santoyo, Carlos:
Univ Nacl Autonoma Mexico, Fac Psychol, Univ Ave 3004, Mexico City 04510, DF, Mexico
Mitchell, Suzanne H.:
Oregon Hlth & Sci Univ, Portland, OR 97201 USA
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