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3 Magyar Pszichologiai Szemle (Hungarian Psychological Review)

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THE HUNGARIAN VERSION OF NUMBER PROCESSING AND CALCULATION TEST

100%

Igacs J. , Janacsek K. , Krajcsi A.

Magyar Pszichologiai Szemle (Hungarian Psychological Review)

2008

tom 63

nr 4

633-650

The Number Processing and Calculation Test is a neuropsychological test battery designed for diagnosing and investigating acquired numerical impairments. The numerical competence includes several cognitive systems that can dissociate. The test explores the modules crucial in numerical processing, including the input and output systems in several modalities and notations. The present paper describes the Hungarian version of the test that includes an electronic version of the test and the scoring table. The test is freely available from the website of the authors' research group.

NUMERICAL ABILITIES IN WILLIAMS-SYNDROME: DISSOCIATED ANALOGUE QUANTITATIVE SYSTEM AND VERBAL RECALL

88%

Krajcsi A. , Igacs J. , Lukacs A. , Racsmany M. , Pleh C.

Magyar Pszichologiai Szemle (Hungarian Psychological Review)

2008

tom 63

nr 1

103-115

Williams syndrome (WS) is a rare genetic disorder accompanied by serious damage to numerical abilities. The working of two numerical systems, the analogue amount system and the verbal system, were investigated in Williams syndrome. Three different numerical tasks were used: simple addition, simple multiplication, and number comparison. A new matching method was introduced to find a proper control group. Typically developing control groups were matched using reaction time data from one of the tasks. The WS group had a relatively fast reaction time in addition and multiplication tasks (verbal recall of the number table), but the group was slow in number comparison (analogue quantity estimation in the intraparietal sulcus). In the number comparison task no reverse number effects were found, and the distance effect was stronger then in the control groups. On the basis of these data the postulation of an impaired analogue quantity system together with a relatively intact verbal recall system in Williams syndrome is supported.

VERBAL WORKING MEMORY AND MORPHOLOGICAL COMPLEXITY

88%

Nemeth D. , Ivady R. E. , Mihaltz M. , Krajcsi A. , Pleh C.

Magyar Pszichologiai Szemle (Hungarian Psychological Review)

2006

tom 61

nr 2

265-298

The main purpose of this research is to study the relationship between verbal working memory an morphological complexity of words. Hungarian as an agglutinative language is of special interest for psycholinguistic inquiries in morphology. The authors present three word-recall experiments. The recall of words was measured by the classical span design. The item lists consisted of 2 syllable stems and 2 syllable morphologically complex words (stem + suffix). Within one list the words were of the same length, the same phonological structure (CVCVC), the same fluency and the same concreteness. The experimental design was the same with 3 syllable words as well. The capacity of the phonological loop was measured by digit span and non-word repetition. Results indicated that morphological complexity has a significant effect on word span. Partial correlation analysis suggests that the effect of the phonological loop on morphologically complex words is mediated by stems rather than suffixes.