How do incorrect results change the processing of arithmetic information? Evidence from a divided visual field experiment.
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| Title: | How do incorrect results change the processing of arithmetic information? Evidence from a divided visual field experiment. |
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| Authors: | Castro, Antonio (AUTHOR), Sumich, Alex (AUTHOR), Premkumar, Preethi (AUTHOR), Jones, Gary (AUTHOR) |
| Source: | Laterality. May2014, Vol. 19 Issue 3, p340-353. 14p. |
| Subjects: | Lateral dominance, Arithmetic education, Mathematics education, Psychophysiology, Cerebral dominance, Mental arithmetic |
| Abstract: | Despite several recent important developments in understanding numerical processing of both isolated numbers and numbers in the context of arithmetic equations, the relative impact of congruency on high-level compared to low-level processing remains unclear. The current study investigated hemispheric differences in the processing of arithmetic material, as a function of semantic and perceptual congruency, using a delayed answer verification task and divided visual field paradigm. A total of 37 participants (22 females and 15 males, mean age 30.06,SD9.78) were presented unilaterally or bilaterally with equation results that were either correct or incorrect and had a consistent or inconsistent numerical notation. Statistical analyses showed no visual field differences in a notation consistency task, whereas when judgements had to be made on mathematical accuracy there was a right visual field advantage for incorrect equations that were notation consistent. These results reveal a clear differential processing of arithmetic information by the two cerebral hemispheres with a special emphasis on erroneous calculations. Faced with incorrect results and with a consistent numerical notation, the left hemisphere outperforms its right counterpart in making mathematical accuracy decisions. [ABSTRACT FROM PUBLISHER] |
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| Database: | Psychology and Behavioral Sciences Collection |
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| Abstract: | Despite several recent important developments in understanding numerical processing of both isolated numbers and numbers in the context of arithmetic equations, the relative impact of congruency on high-level compared to low-level processing remains unclear. The current study investigated hemispheric differences in the processing of arithmetic material, as a function of semantic and perceptual congruency, using a delayed answer verification task and divided visual field paradigm. A total of 37 participants (22 females and 15 males, mean age 30.06,SD9.78) were presented unilaterally or bilaterally with equation results that were either correct or incorrect and had a consistent or inconsistent numerical notation. Statistical analyses showed no visual field differences in a notation consistency task, whereas when judgements had to be made on mathematical accuracy there was a right visual field advantage for incorrect equations that were notation consistent. These results reveal a clear differential processing of arithmetic information by the two cerebral hemispheres with a special emphasis on erroneous calculations. Faced with incorrect results and with a consistent numerical notation, the left hemisphere outperforms its right counterpart in making mathematical accuracy decisions. [ABSTRACT FROM PUBLISHER] |
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| ISSN: | 1357650X |
| DOI: | 10.1080/1357650X.2013.826237 |
