Too Little, Too Late or Too Much, Too Early? Differential Hemodynamics of Response Inhibition in High and Low Sensation Seekers
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High sensation seeking is associated with strong approach behaviors and weak avoidance responses. The present study used functional magnetic resonance imaging (fMRI) to further characterize the neurobiological underpinnings of this behavioral profile using a Go/No-go task. Analysis of brain activation associated with response inhibition (No-go) versus response initiation and execution (Go) revealed the commonly reported right lateral prefrontal, insula, cingulate, and supplementary motor area network. However, right lateral activation was associated with greater No-go than Go responses only in low sensation seekers. High sensation seekers showed no differential activation in these regions but a more pronounced Go compared to No-go response in several other regions that are involved in salience detection (insula), motor initiation (anterior cingulate) and attention (inferior parietal cortex). Temporal analysis of the hemodynamic response for Go and No-go conditions revealed that the stronger response to Go than No-go trials in high sensation seekers occurred in in the earliest time window in the right middle frontal gyrus, right mid-cingulate and right precuneus. In contrast, the greater No-go than Go response in low sensation seekers occurred in the later time window in these same regions. These findings indicate that high sensation seekers more strongly attend to or process Go trials and show delayed or minimal inhibitory responses on No-go trials in regions that low sensation seekers use for response inhibition. Failure to engage such regions for response inhibition may underlie some of the risky and impulsive behaviors observed in high sensation seekers.
Zhang F, Hua B, Wang M, Wang T, Ding Z, Ding J Sci Rep. 2021; 11(1):334.
PMID: 33432029 PMC: 7801452. DOI: 10.1038/s41598-020-79475-9.
Shared Neural Correlates Underlying Addictive Disorders and Negative Urgency.
Um M, Whitt Z, Revilla R, Hunton T, Cyders M Brain Sci. 2019; 9(2).
PMID: 30744033 PMC: 6406305. DOI: 10.3390/brainsci9020036.
Deficits in voluntary pursuit and inhibition of risk taking in sensation seeking.
Zheng Y, Li Q, Tian M, Nan W, Yang G, Liang J Hum Brain Mapp. 2017; 38(12):6019-6028.
PMID: 28885754 PMC: 6867030. DOI: 10.1002/hbm.23807.
Chase H, Fournier J, Bertocci M, Greenberg T, Aslam H, Stiffler R Transl Psychiatry. 2017; 7(4):e1096.
PMID: 28418404 PMC: 5416701. DOI: 10.1038/tp.2017.60.
General Habit Propensity Relates to the Sensation Seeking Subdomain of Impulsivity But Not Obesity.
Dietrich A, de Wit S, Horstmann A Front Behav Neurosci. 2016; 10:213.
PMID: 27877117 PMC: 5099246. DOI: 10.3389/fnbeh.2016.00213.