scholarly journals Waiting in intertemporal choice tasks affects discounting and subjective time perception.

2020 ◽  
Vol 149 (12) ◽  
pp. 2289-2313
Author(s):  
Ping Xu ◽  
Claudia González-Vallejo ◽  
Benjamin T. Vincent
Keyword(s):  
Time Perception ◽  
Intertemporal Choice ◽  
Subjective Time ◽  
Choice Tasks

Internal-Time Temporal Difference Model for Neural Value-Based Decision Making

2010 ◽  
Vol 22 (12) ◽  
pp. 3062-3106 ◽  
Author(s):  
Hiroyuki Nakahara ◽  
Sivaramakrishnan Kaveri
Keyword(s):  
Decision Making ◽  
Intertemporal Choice ◽  
Hyperbolic Discounting ◽  
Time Frame ◽  
Subjective Time ◽  
Temporal Difference ◽  
Internal Time ◽  
Learning Framework ◽  
Neural Activities ◽  
Choice Tasks

The temporal difference (TD) learning framework is a major paradigm for understanding value-based decision making and related neural activities (e.g., dopamine activity). The representation of time in neural processes modeled by a TD framework, however, is poorly understood. To address this issue, we propose a TD formulation that separates the time of the operator (neural valuation processes), which we refer to as internal time, from the time of the observer (experiment), which we refer to as conventional time. We provide the formulation and theoretical characteristics of this TD model based on internal time, called internal-time TD, and explore the possible consequences of the use of this model in neural value-based decision making. Due to the separation of the two times, internal-time TD computations, such as TD error, are expressed differently, depending on both the time frame and time unit. We examine this operator-observer problem in relation to the time representation used in previous TD models. An internal time TD value function exhibits the co-appearance of exponential and hyperbolic discounting at different delays in intertemporal choice tasks. We further examine the effects of internal time noise on TD error, the dynamic construction of internal time, and the modulation of internal time with the internal time hypothesis of serotonin function. We also relate the internal TD formulation to research on interval timing and subjective time.

scholarly journals Quantifying the contribution of individual variation in timing to delay-discounting

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Evgeniya Lukinova ◽  
Jeffrey C. Erlich
Keyword(s):  
Individual Differences ◽  
Time Perception ◽  
Delay Discounting ◽  
Intertemporal Choice ◽  
Internal Clock ◽  
Self Control ◽  
Important Relationship ◽  
Psychology And Economics ◽  
Sense Of Time ◽  
Choice Tasks

AbstractDelay-discounting studies in neuroscience, psychology, and economics have been mostly focused on concepts of self-control, reward evaluation, and discounting. Another important relationship to consider is the link between intertemporal choice and time perception. We presented 50 college students with timing tasks on the range of seconds to minutes and intertemporal-choice tasks on both the time-scale of seconds and of days. We hypothesized that individual differences in time perception would influence decisions about short experienced delays but not long delays. While we found some evidence that individual differences in internal clock speed account for some unexplained variance between choices across time-horizons, overall our findings suggest a nominal contribution of the altered sense of time in intertemporal choice.

scholarly journals Time Unpacking Effect on Intertemporal Decision-Making: Does the Effect Change With Choice Valence?

2021 ◽  
Vol 12 ◽  
Author(s):  
Quan Yang ◽  
Xianmin Gong ◽  
Jinli Xiong ◽  
Shufei Yin
Keyword(s):  
College Students ◽  
Decision Making ◽  
Time Perception ◽  
Time Delays ◽  
Intertemporal Choice ◽  
Experimental Conditions ◽  
Effect Change ◽  
Gain Loss ◽  
Choice Tasks ◽  
Delayed Gains

People often feel that a period of time becomes longer when it is described in more detail or cut into more segments, which is known as the time unpacking effect. The current study aims to unveil how time unpacking manipulation impacts intertemporal decision making and whether the gain-loss valence of choices moderates such impacts. We recruited 87 college students (54 female) and randomly assigned them to the experimental conditions to complete a series of intertemporal choice tasks. The subjective values of the delayed choices were calculated for each participant and then analyzed. The results showed that participants perceived longer time delays and higher subjective values on the delayed gains (but not losses) in the time unpacking conditions than in the time packing conditions. These results suggest that time unpacking manipulation not only impacts time perception but also other factors, which in turn, influence the valuation of delayed outcomes and thereby intertemporal choices. The results are discussed in comparison to previous studies to highlight the complexity of the mechanism underlying the effect of time unpacking on intertemporal decision making.

scholarly journals Association of the altered sense of time in the seconds-to-minute range with intertemporal choices across time-horizons.

2020 ◽  
Author(s):  
Evgeniya Lukinova ◽  
Jeffrey C Erlich
Keyword(s):  
Individual Differences ◽  
Time Perception ◽  
Intertemporal Choice ◽  
Internal Clock ◽  
Self Control ◽  
Time Horizons ◽  
Important Relationship ◽  
Psychology And Economics ◽  
Sense Of Time ◽  
Choice Tasks

Delay-discounting studies in neuroscience, psychology, and economics have been mostly focused on concepts of self-control, reward evaluation, and discounting. Another important relationship to consider is the link between intertemporal choice and time perception. We presented 50 college students with timing exercises on the range of seconds to minutes and intertemporal-choice tasks on both the time-scale of seconds and of days. We hypothesized that individual differences in time perception would influence decisions about short experienced delays but not long delays. While we found some evidence that individual differences in internal clock speed account for some unexplained variance between choices across time-horizons, overall our findings suggest a nominal contribution of the altered sense of time in intertemporal choice.

Temporal Discounting Across Adulthood: A Systematic Review and Meta-analysis

2020 ◽  
Author(s):  
Kendra Leigh Seaman ◽  
Sade J Abiodun ◽  
Zöe Fenn ◽  
Gregory Russell Samanez-Larkin ◽  
Rui Mata
Keyword(s):  
Age Differences ◽  
Intertemporal Choice ◽  
Meta Analysis ◽  
Empirical Work ◽  
Adult Life ◽  
Temporal Discounting ◽  
Total N ◽  
Adult Age ◽  
Adult Age Differences ◽  
Choice Tasks

A number of developmental theories have been proposed that make differential predictions about the links between age and temporal discounting; that is, the valuation of rewards at different points in time. Most empirical studies examining adult age differences in temporal discounting have relied on economic intertemporal choice tasks, which pit choosing a smaller, sooner monetary reward against choosing a larger, later one. Although initial studies using these tasks suggested older adults discount less than younger adults, follow-up studies provided heterogeneous, and thus inconclusive, results. Using an open science approach, we test the replicability of adult age differences in temporal discounting by conducting a preregistered systematic literature search and meta-analysis of adult age differences in intertemporal choice tasks. Across 37 cross-sectional studies (Total N = 104,736), we found no reliable relation between age and temporal discounting (r = -0.081, 95% CI [-0.185, 0.025]). We also found little evidence of publication bias or p-hacking. Exploratory analyses of moderators found no effect of experimental design (e.g., extreme-group vs. continuous age), incentives (hypothetical vs. rewards), amount of delay (e.g., days, weeks, months, or years), or quantification of discounting behavior (e.g., proportion of immediate choices vs. parameters from computational modeling). Additional analyses of 12 participant-level data sets found little support for a nonlinear relation between age and temporal discounting across adulthood. Overall, the results suggest that adult age is not reliably associated with individual differences in temporal discounting. We provide recommendations for future empirical work on temporal discounting across the adult life span.

Discounting Time and Time Discounting: Subjective Time Perception and Intertemporal Preferences

2009 ◽  
Vol 46 (4) ◽  
pp. 543-556 ◽  
Author(s):  
Gal Zauberman ◽  
B. Kyu Kim ◽  
Selin A. Malkoc ◽  
James R. Bettman
Keyword(s):  
Time Perception ◽  
Hyperbolic Discounting ◽  
Subjective Time ◽  
Multiple Time ◽  
Subjective Perceptions ◽  
Objective Time ◽  
Trade Offs ◽  
Intertemporal Preferences ◽  
Constant Rate ◽  
Within Subjects

Consumers often make decisions about outcomes and events that occur over time. This research examines consumers' sensitivity to the prospective duration relevant to their decisions and the implications of such sensitivity for intertemporal trade-offs, especially the degree of present bias (i.e., hyperbolic discounting). The authors show that participants' subjective perceptions of prospective duration are not sufficiently sensitive to changes in objective duration and are nonlinear and concave in objective time, consistent with psychophysical principles. More important, this lack of sensitivity can explain hyperbolic discounting. The results replicate standard hyperbolic discounting effects with respect to objective time but show a relatively constant rate of discounting with respect to subjective time perceptions. The results are replicated between subjects (Experiment 1) and within subjects (Experiments 2), with multiple time horizons and multiple descriptors, and with different measurement orders. Furthermore, the authors show that when duration is primed, subjective time perception is altered (Experiment 4) and hyperbolic discounting is reduced (Experiment 3).

Method for Measuring the Rate of Subjective Time

1967 ◽  
Vol 24 (3_suppl) ◽  
pp. 1235-1240 ◽  
Author(s):  
James J. McGrath ◽  
James F. O'Hanlon
Keyword(s):  
Individual Differences ◽  
Real Time ◽  
Linear Function ◽  
Time Perception ◽  
Test Session ◽  
Subjective Time ◽  
Systematic Effect ◽  
Standard Interval

A method was developed for measuring rate of subjective time ( RST). Subjective time ( T) was recorded in subjects making a series of contiguous estimations of a standard interval of time. The results showed that T generally increased as a linear function of real time ( t). RST was measured by describing T as a linear function of t and by differentiating that function in respect to t. Individual differences in RST were large and stable within a test session. The differences were reliable from one session to the next. Within the range studied (1 to 10 min.) the duration of the standard interval had no systematic effect upon RSTs. And, RSTs were related in the appropriate direction to traditional measures of time perception. It was concluded that the RST is a useful measure for research on time perception.

Age Effects in Perception of Time

2005 ◽  
Vol 97 (3) ◽  
pp. 921-935 ◽  
Author(s):  
Marc Wittmann ◽  
Sandra Lehnhoff
Keyword(s):  
Time Perception ◽  
Nonlinear Regression ◽  
Age Effects ◽  
Chronological Age ◽  
Subjective Time ◽  
Regression Analyses ◽  
Empirical Results ◽  
Widespread Belief ◽  
Perception Of Time ◽  
Pearson Correlations

Despite the widespread belief that the subjective speed of the passage of time increases with age, empirical results are controversial. In this study, a combination of questionnaires was employed to assess subjective time perception by 499 subjects, ages 14 to 94 years. Pearson correlations and nonlinear regression analyses on a variety of questionnaires and the age of the participants show that the momentary perception of the passage of time and the retrospective judgment of past periods of time are a function of chronological age; however, small-to-moderate effects accounted for at most 10% of the variance. Results generally support the widespread perception that the passage of time speeds up with age. These results are discussed in the context of models of prospective and retrospective time judgment, but interpretations have to be treated with caution given methodological limitations.

Is it patience or motivation? On motivational confounds in intertemporal choice tasks

2014 ◽  
Vol 103 (1) ◽  
pp. 196-217 ◽  
Author(s):  
Fabio Paglieri ◽  
Elsa Addessi ◽  
Agnese Sbaffi ◽  
Maria Isabella Tasselli ◽  
Alexia Delfino
Keyword(s):  
Intertemporal Choice ◽  
Choice Tasks
Sign in / Sign up

Export Citation Format

Share Document