Abstract
People are capable, at will, of trading speed for accuracy when performing a task; they can focus on performing accurately at the cost of being slow, or emphasize speed at the cost of decreased accuracy. Here, we used functional magnetic resonance imaging to investigate the neural correlates of this ability. We show increased baseline activity during speed emphasis in a network of areas related to response preparation and execution, including the premotor areas of the frontal lobe, the basal ganglia, the thalamus, and the dorsolateral prefrontal and left parietal cortices. Furthermore, speed emphasis was associated with reduced transient response-related activation in several of these structures, suggesting that because of the greater baseline activity under speed emphasis, less activation is needed in these structures to reach response threshold, consistent with the assumptions of several computational theories. Moreover, we identify the dorsolateral prefrontal cortex as providing the top-down control signal that increases this baseline activity.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1952-1965 |
| Number of pages | 14 |
| Journal | Journal of Cognitive Neuroscience |
| Volume | 20 |
| Issue number | 11 |
| DOIs | |
| State | Published - Nov 2008 |
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ASJC Scopus subject areas
- Cognitive Neuroscience
Cite this
The neural and computational basis of controlled speed-accuracy tradeoff during task performance. / Van Veen, Vincent; Krug, Marie K.; Carter, Cameron S.
In: Journal of Cognitive Neuroscience, Vol. 20, No. 11, 11.2008, p. 1952-1965.Research output: Contribution to journal › Article
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TY - JOUR
T1 - The neural and computational basis of controlled speed-accuracy tradeoff during task performance
AU - Van Veen, Vincent
AU - Krug, Marie K.
AU - Carter, Cameron S
PY - 2008/11
Y1 - 2008/11
N2 - People are capable, at will, of trading speed for accuracy when performing a task; they can focus on performing accurately at the cost of being slow, or emphasize speed at the cost of decreased accuracy. Here, we used functional magnetic resonance imaging to investigate the neural correlates of this ability. We show increased baseline activity during speed emphasis in a network of areas related to response preparation and execution, including the premotor areas of the frontal lobe, the basal ganglia, the thalamus, and the dorsolateral prefrontal and left parietal cortices. Furthermore, speed emphasis was associated with reduced transient response-related activation in several of these structures, suggesting that because of the greater baseline activity under speed emphasis, less activation is needed in these structures to reach response threshold, consistent with the assumptions of several computational theories. Moreover, we identify the dorsolateral prefrontal cortex as providing the top-down control signal that increases this baseline activity.
AB - People are capable, at will, of trading speed for accuracy when performing a task; they can focus on performing accurately at the cost of being slow, or emphasize speed at the cost of decreased accuracy. Here, we used functional magnetic resonance imaging to investigate the neural correlates of this ability. We show increased baseline activity during speed emphasis in a network of areas related to response preparation and execution, including the premotor areas of the frontal lobe, the basal ganglia, the thalamus, and the dorsolateral prefrontal and left parietal cortices. Furthermore, speed emphasis was associated with reduced transient response-related activation in several of these structures, suggesting that because of the greater baseline activity under speed emphasis, less activation is needed in these structures to reach response threshold, consistent with the assumptions of several computational theories. Moreover, we identify the dorsolateral prefrontal cortex as providing the top-down control signal that increases this baseline activity.
UR - http://www.scopus.com/inward/record.url?scp=55949111094&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=55949111094&partnerID=8YFLogxK
U2 - 10.1162/jocn.2008.20146
DO - 10.1162/jocn.2008.20146
M3 - Article
C2 - 18416686
AN - SCOPUS:55949111094
VL - 20
SP - 1952
EP - 1965
JO - Journal of Cognitive Neuroscience
JF - Journal of Cognitive Neuroscience
SN - 0898-929X
IS - 11
ER -