Ability of aphasic individuals to perform numerical processing and calculation tasks

De Luccia, Gabriela; Ortiz, Karin Zazo

doi:10.1590/0004-282X20130250

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Sumário

Articles • Arq. Neuro-Psiquiatr. 72 (3) • Mar 2014 • https://doi.org/10.1590/0004-282X20130250 copy

Ability of aphasic individuals to perform numerical processing and calculation tasks

Afásicos apresentam dificuldades para executar tarefas que envolvem processamento numérico e de cálculo

Authorship SCIMAGO INSTITUTIONS RANKINGS

Objective

To compare performance on EC301 battery calculation task between aphasic subjects and normal controls of the same sex, age, and education.

Method

Thirty-two aphasic patients who had suffered a single left hemisphere stroke were evaluated. Forty-four healthy volunteers were also selected. All subjects underwent a comprehensive arithmetic battery to assess their numerical and calculation skills. Performances on numerical processing and calculation tasks were then analyzed.

Results

Aphasic individuals showed changes in their ability to perform numerical processing and calculation tasks that were not observed in the healthy population.

Conclusion

Compared with healthy subjects of the same age and education level, individuals with aphasia had difficulty performing various tasks that involved numerical processing and calculation.

aphasia; dyscalculia; stroke

	Control group		Aphasic group		p-value
	n	Mean (SD)	n	Mean (SD)	p-value
Age	44	40.6(16.0)	32	51.4(13.7)	0.003*
Gender					0.003*
Male	15	26	22
Female	29	74	10
Years of study					0.662
1-5 years	14	32	16	50
6-8 years	12	27	3	9
9-12 years	11	25	3	9
>12 years	7	16	10	32

Subtest	Difference between average	95% CI	t(74)	P
C1	30.6	17.9–43.3	4.8	<0.001*
C2	24.7	11.4–38.1	3.7	<0.001*
C3	41.3	24.3–58.4	4.8	<0.001*
C4	12.6	3.7–21.6	2.8	0.006
C5	11.6	2.6–20.6	2.6	0.013
C6	12.3	0.5–24.1	2.1	0.042
C7	15.7	4.6–26.7	2.8	0.006
C8	17.1	4.3–29.9	2.7	0.009
C9	44.6	32.0–57.2	7.1	<0.001*
C10	46.3	30.4–62.1	5.8	<0.001*
C11	36.6	23.4–49.9	5.5	<0.001*
C12	54.0	39.7–68.3	7.5	<0.001*
C13	37.2	23.2–51.2	5.3	<0.001*
C14	46.5	32.7–60.3	6.7	<0.001*
C15	42.1	27.4–56.9	5.7	<0.001*
C16	41.9	28.9–55.0	6.4	<0.001*
C17	42.8	27.4–58.1	5.6	<0.001*
C18	14.5	4.2–24.7	2.8	0.006
C19	29.8	17.5–42.1	4.8	<0.001*
C20	44.2	31.8–56.6	7.1	<0.001*
C21	28.2	14.7–41.8	4.2	<0.001*
C22	31.7	16.7–46.8	4.2	<0.001*
C23	15.5	1.5–29.4	2.2	0.030
C24	15.5	-0.3–31.2	2.0	0.054
C25	26.6	6.8–46.5	2.7	0.009
C26	39.6	23.3–55.9	4.8	<0.001*
C27	38.1	20.7–55.4	4.4	<0.001*
C28	40.1	24.1–56.1	5.0	<0.001*
C29	25.3	12.6–38.1	4.0	<0.001*
C30	26.4	15.4–37.4	4.9	<0.001*
C31	13.8	3.9–23.7	2.8	0.007

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[1] Correspondence:
Karin Zazo Ortiz; Departamento de Fonoaudiologia; Universidade Federal de São Paulo; Rua Botucatu 802; 04023-062 São Paulo SP - Brasil. E-mail: karinortizfono@epm.br