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Processing of multi-digit additions in high math-anxious individuals: psychophysiological evidence.

Núñez-Peña MI, Suárez-Pellicioni M - Front Psychol (2015)

Bottom Line: In both phases, a P2 component of larger amplitude was found for HMA individuals than for their LMA peers.Moreover, in the verification phase, LMA individuals showed a larger late positive component (LPC) for incorrect solutions at parietal electrodes than their HMA counterparts.The smaller LPC shown by HMA individuals when verifying incorrect solutions suggests that these solutions may have been appeared more plausible to them than to their LMA counterparts.

View Article: PubMed Central - PubMed

Affiliation: Department of Behavioral Sciences Methods, Faculty of Psychology, University of Barcelona Barcelona, Spain ; Institute for Brain, Cognition, and Behavior (IR3C), University of Barcelona Barcelona, Spain.

ABSTRACT
We investigated the time course of neural processing of multi-digit additions in high- (HMA) and low-math anxious (LMA) individuals. Seventeen HMA and 17 LMA individuals were presented with two-digit additions and were asked to perform a verification task. Behavioral data showed that HMA individuals were slower and more error prone than their LMA peers, and that incorrect solutions were solved more slowly and less accurately than correct ones. Moreover, HMA individuals tended to need more time and commit more errors when having to verify incorrect solutions than correct ones. ERPs time-locked to the presentation of the addends (calculation phase) and to the presentation of the proposed solution (verification phase) were also analyzed. In both phases, a P2 component of larger amplitude was found for HMA individuals than for their LMA peers. Because the P2 component is considered to be a biomarker of the mobilization of attentional resources toward emotionally negative stimuli, these results suggest that HMA individuals may have invested more attentional resources both when processing the addends (calculation phase) and when they had to report whether the proposed solution was correct or not (verification phase), as compared to their LMA peers. Moreover, in the verification phase, LMA individuals showed a larger late positive component (LPC) for incorrect solutions at parietal electrodes than their HMA counterparts. The smaller LPC shown by HMA individuals when verifying incorrect solutions suggests that these solutions may have been appeared more plausible to them than to their LMA counterparts.

No MeSH data available.


(A) Raw averaged waveforms for HMA (n = 17) and LMA (n = 17) individuals during the verification phase when correct solutions were presented. (B) Topographic maps for HMA and LMA individuals in the 175–225 ms window of the verification phase. (C) Topographic maps for HMA and LMA individuals in the 400–600 ms window of the verification phase.
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Figure 2: (A) Raw averaged waveforms for HMA (n = 17) and LMA (n = 17) individuals during the verification phase when correct solutions were presented. (B) Topographic maps for HMA and LMA individuals in the 175–225 ms window of the verification phase. (C) Topographic maps for HMA and LMA individuals in the 400–600 ms window of the verification phase.

Mentions: Figure 2A shows the grand-average ERPs for each group in the verification phase for correct proposed solutions at frontal, central and parietal electrodes. The differences between groups were evident at about 200 ms post-stimulus, when HMA individuals showed a larger P2 component than their LMA peers. Differences between groups were also evident later, when the LMA group showed a larger LPC, peaking about 400 ms post-stimulus compared with their HMA counterparts. This effect was larger at parietal positions. Scalp topographic maps in Figures 2B,C show brain activity in the 175–225 and the 400–600 ms windows for both groups. Figure 2B reveals that the P2 component was frontocentrally distributed and was larger in the HMA group than in LMA. Figure 2C shows that the LPC was parietally distributed and was larger in the LMA group than in HMA.


Processing of multi-digit additions in high math-anxious individuals: psychophysiological evidence.

Núñez-Peña MI, Suárez-Pellicioni M - Front Psychol (2015)

(A) Raw averaged waveforms for HMA (n = 17) and LMA (n = 17) individuals during the verification phase when correct solutions were presented. (B) Topographic maps for HMA and LMA individuals in the 175–225 ms window of the verification phase. (C) Topographic maps for HMA and LMA individuals in the 400–600 ms window of the verification phase.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4543779&req=5

Figure 2: (A) Raw averaged waveforms for HMA (n = 17) and LMA (n = 17) individuals during the verification phase when correct solutions were presented. (B) Topographic maps for HMA and LMA individuals in the 175–225 ms window of the verification phase. (C) Topographic maps for HMA and LMA individuals in the 400–600 ms window of the verification phase.
Mentions: Figure 2A shows the grand-average ERPs for each group in the verification phase for correct proposed solutions at frontal, central and parietal electrodes. The differences between groups were evident at about 200 ms post-stimulus, when HMA individuals showed a larger P2 component than their LMA peers. Differences between groups were also evident later, when the LMA group showed a larger LPC, peaking about 400 ms post-stimulus compared with their HMA counterparts. This effect was larger at parietal positions. Scalp topographic maps in Figures 2B,C show brain activity in the 175–225 and the 400–600 ms windows for both groups. Figure 2B reveals that the P2 component was frontocentrally distributed and was larger in the HMA group than in LMA. Figure 2C shows that the LPC was parietally distributed and was larger in the LMA group than in HMA.

Bottom Line: In both phases, a P2 component of larger amplitude was found for HMA individuals than for their LMA peers.Moreover, in the verification phase, LMA individuals showed a larger late positive component (LPC) for incorrect solutions at parietal electrodes than their HMA counterparts.The smaller LPC shown by HMA individuals when verifying incorrect solutions suggests that these solutions may have been appeared more plausible to them than to their LMA counterparts.

View Article: PubMed Central - PubMed

Affiliation: Department of Behavioral Sciences Methods, Faculty of Psychology, University of Barcelona Barcelona, Spain ; Institute for Brain, Cognition, and Behavior (IR3C), University of Barcelona Barcelona, Spain.

ABSTRACT
We investigated the time course of neural processing of multi-digit additions in high- (HMA) and low-math anxious (LMA) individuals. Seventeen HMA and 17 LMA individuals were presented with two-digit additions and were asked to perform a verification task. Behavioral data showed that HMA individuals were slower and more error prone than their LMA peers, and that incorrect solutions were solved more slowly and less accurately than correct ones. Moreover, HMA individuals tended to need more time and commit more errors when having to verify incorrect solutions than correct ones. ERPs time-locked to the presentation of the addends (calculation phase) and to the presentation of the proposed solution (verification phase) were also analyzed. In both phases, a P2 component of larger amplitude was found for HMA individuals than for their LMA peers. Because the P2 component is considered to be a biomarker of the mobilization of attentional resources toward emotionally negative stimuli, these results suggest that HMA individuals may have invested more attentional resources both when processing the addends (calculation phase) and when they had to report whether the proposed solution was correct or not (verification phase), as compared to their LMA peers. Moreover, in the verification phase, LMA individuals showed a larger late positive component (LPC) for incorrect solutions at parietal electrodes than their HMA counterparts. The smaller LPC shown by HMA individuals when verifying incorrect solutions suggests that these solutions may have been appeared more plausible to them than to their LMA counterparts.

No MeSH data available.