Abstract
We tested a novel hypothesis that glucose taste acts as a signal for resource acquisition, motivating preference for immediate rewards while actual glucose ingestion prompts resource conservation, promoting future-orientated self-regulation. In Study 1, participants were engaged in a delay-discounting task and a grip-control task before and after a beverage intervention (glucose drink, water drink, or glucose mouth-rinse). Glucose ingestion decreased delay discounting, making larger-and-later rewards more attractive. In contrast, glucose rinse increased delay discounting. Water ingestion had none of the effects. In the grip-control task, only glucose ingestion improved the performance. Study 2 using fMRI revealed that glucose rinse and glucose ingestion resulted in distinct brain activational patterns. Compared to glucose rinse, glucose ingestion deactivated a few brain regions (e.g., the anterior cingulate gyrus and inferior frontal gyrus) that are previously shown to be more active when making more difficult intertemporal choices, suggesting that glucose ingestion eases the process of making intertemporal choice. In sum, our behavioral and neuroimaging findings together suggest a dual signaling role of glucose sensation and ingestion in regulating delay discounting and self-control.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 101-110 |
| Number of pages | 10 |
| Journal | Appetite |
| Volume | 121 |
| DOIs | |
| State | Published - Feb 1 2018 |
Fingerprint
Keywords
- Delay discounting
- Glucose ingestion
- Glucose taste
- Self-control
- fMRI
ASJC Scopus subject areas
- Psychology(all)
- Nutrition and Dietetics
Cite this
Resource forecasting : Differential effects of glucose taste and ingestion on delay discounting and self-control. / Wang, X. T.; Reed, Ryan N.; Baugh, Lee A.; Fercho, Kelene A.
In: Appetite, Vol. 121, 01.02.2018, p. 101-110.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Resource forecasting
T2 - Differential effects of glucose taste and ingestion on delay discounting and self-control
AU - Wang, X. T.
AU - Reed, Ryan N.
AU - Baugh, Lee A.
AU - Fercho, Kelene A.
PY - 2018/2/1
Y1 - 2018/2/1
N2 - We tested a novel hypothesis that glucose taste acts as a signal for resource acquisition, motivating preference for immediate rewards while actual glucose ingestion prompts resource conservation, promoting future-orientated self-regulation. In Study 1, participants were engaged in a delay-discounting task and a grip-control task before and after a beverage intervention (glucose drink, water drink, or glucose mouth-rinse). Glucose ingestion decreased delay discounting, making larger-and-later rewards more attractive. In contrast, glucose rinse increased delay discounting. Water ingestion had none of the effects. In the grip-control task, only glucose ingestion improved the performance. Study 2 using fMRI revealed that glucose rinse and glucose ingestion resulted in distinct brain activational patterns. Compared to glucose rinse, glucose ingestion deactivated a few brain regions (e.g., the anterior cingulate gyrus and inferior frontal gyrus) that are previously shown to be more active when making more difficult intertemporal choices, suggesting that glucose ingestion eases the process of making intertemporal choice. In sum, our behavioral and neuroimaging findings together suggest a dual signaling role of glucose sensation and ingestion in regulating delay discounting and self-control.
AB - We tested a novel hypothesis that glucose taste acts as a signal for resource acquisition, motivating preference for immediate rewards while actual glucose ingestion prompts resource conservation, promoting future-orientated self-regulation. In Study 1, participants were engaged in a delay-discounting task and a grip-control task before and after a beverage intervention (glucose drink, water drink, or glucose mouth-rinse). Glucose ingestion decreased delay discounting, making larger-and-later rewards more attractive. In contrast, glucose rinse increased delay discounting. Water ingestion had none of the effects. In the grip-control task, only glucose ingestion improved the performance. Study 2 using fMRI revealed that glucose rinse and glucose ingestion resulted in distinct brain activational patterns. Compared to glucose rinse, glucose ingestion deactivated a few brain regions (e.g., the anterior cingulate gyrus and inferior frontal gyrus) that are previously shown to be more active when making more difficult intertemporal choices, suggesting that glucose ingestion eases the process of making intertemporal choice. In sum, our behavioral and neuroimaging findings together suggest a dual signaling role of glucose sensation and ingestion in regulating delay discounting and self-control.
KW - Delay discounting
KW - Glucose ingestion
KW - Glucose taste
KW - Self-control
KW - fMRI
UR - http://www.scopus.com/inward/record.url?scp=85033495613&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85033495613&partnerID=8YFLogxK
U2 - 10.1016/j.appet.2017.11.083
DO - 10.1016/j.appet.2017.11.083
M3 - Article
C2 - 29127026
AN - SCOPUS:85033495613
VL - 121
SP - 101
EP - 110
JO - Appetite
JF - Appetite
SN - 0195-6663
ER -