Neurocognitive Functions in 3- to 15-Year-Old Children: An International Comparison

Children's color trails test: Greek normative data and clinical validity in children with traumatic brain injury and attention deficit - Hyperactivity disorder

The Children's Color Trail Test (CCTT) is considered a culture fair equivalent of the Trail Making Test for the assessment of cognitive flexibility in pediatric populations, while others emphasize its additional validity as a measure of attention, perceptual tracking, processing speed, susceptibility to interference and inhibition. The need for standardized neuropsychological tests in Greece, especially for the pediatric population is significant. In the present study, considering the relatively good psychometric properties of the CCTT and its wide cross-cultural application, we decided that such a tool would be useful to Greek clinicians and researchers, and therefore developed norms for the Greek child and adolescent population. Additionally, we examined the clinical validity of the test, administering it to two groups of patients (children with Traumatic Brain Injury and Attention Deficit - Hyperactivity Disorder). We administered the test to 417 native healthy Greek children 6-15 years, recruited primarily from Southwestern Greece from several public schools. Linear regression analysis revealed a significant influence of age on completion time in both parts of the CCTT, whereas sex did not influence time to completion. Older children consistently completed the test faster than younger children, whereas girls and boys performed similarly on both conditions. In addition, CCTT differentiated the performance of children who have had a TBI and those diagnosed with ADHD from the performances of their typically developing peers. This study provides much needed performance and clinical utility data for the pediatric population in Greece on a promising neuropsychological tool for use in clinical and research settings.

Do subtle cultural differences sculpt face pareidolia?

Face tuning to non-face images such as shadows or grilled toasts is termed face pareidolia. Face-pareidolia images represent a valuable tool for investigation of social cognition in mental disorders. Here we examined (i) whether, and, if so, how face pareidolia is affected by subtle cultural differences; and (ii) whether this impact is modulated by gender. With this purpose in mind, females and males from Northern Italy were administered a set of Face-n-Thing images, photographs of objects such as houses or waves to a varying degree resembling a face. Participants were presented with pareidolia images with canonical upright orientation and display inversion that heavily affects face pareidolia. In a two-alternative forced-choice paradigm, beholders had to indicate whether each image resembled a face. The outcome was compared with the findings obtained in the Southwest of Germany. With upright orientation, neither cultural background nor gender affected face pareidolia. As expected, display inversion generally mired face pareidolia. Yet, while display inversion led to a drastic reduction of face impression in German males as compared to females, in Italians, no gender differences were found. In a nutshell, subtle cultural differences do not sculpt face pareidolia, but instead affect face impression in a gender-specific way under unusual viewing conditions. Clarification of the origins of these effects requires tailored brain imaging work. Implications for transcultural psychiatry, in particular, for schizophrenia research, are highlighted and discussed.

Improvement of semantic processing ability of Chinese characters in school children: A comparative study based on 2009 and 2019 data

To explore the characteristics of semantic cognitive development of school children by observing the development changes over 10 years, a retrospective event-related potential (ERP) study was conducted on the semantic processing characteristics of Chinese characters in children aged 7–11 years with the same study design in 2009 and 2019. For the EEGs recorded in 2009, the N400 amplitude of semantic processing in children aged 7–11 years showed an approximately inverted U-shaped development trend with a slow rise at the age of 7–9, a peak at the age of 10, then a rapid decline at the age of 11. However, for the EEGs recorded in 2019, the N400 amplitude showed a gradually decreasing development trend with a slow decline for the 7–11 years class. Our data suggested that the semantic processing of Chinese characters in children aged 7–11 years in 2019 was one age stage earlier than that in 2009. The children’s brain cognition is in the process of development and change with high plasticity. 10 years of favorable social and educational environmental factors have significantly improved children’s semantic processing ability of Chinese characters.

WPPSI-IV and NEPSY-II performance in mono- and bilingual 5-6-year-old children: Findings from The FinSwed Study

Children's language background relates to their neurocognitive development. Knowledge of this relationship is important as bilingualism is common. However, research regarding language background in relation to performance on cognitive tests such as the WPPSI-IV and NEPSY-II is scarce. The present study compared WPPSI-IV and NEPSY-II performances between 5- and 6-year-old Swedish-speaking monolingual (n = 45) and Swedish-Finnish-speaking simultaneous bilingual (n = 34) children in Finland. The participants were gathered by stratified sampling and were assessed with the Swedish versions of the tests. In profile analyses, a significant monolingual advantage was found in some WPPSI-IV subtests and indexes requiring expressive vocabulary (Vocabulary, Similarities, Picture Naming, and Vocabulary Acquisition Index) and visuospatial skills (Object Assembly and Visual Spatial Index). No group differences were found between mono- and bilingual children in receptive language, visual memory, or fluid intelligence. Additionally, no differences were found on the Full Scale IQ. The performance on the WPPSI-IV Similarities subtest improved in a subgroup of bilinguals when answers in both Swedish and Finnish were accounted for, instead of accepting only answers in Swedish. No significant differences were found between mono- and bilinguals on the language and memory tasks of NEPSY-II. These findings highlight the importance of considering the child's language background when assessing expressive language in young children, as well as the benefits of assessing bilinguals in both of their languages.

Comparison of WPPSI-IV and WISC-V cognitive profiles in 6-7-year-old Finland-Swedish children - findings from the FinSwed study

The Wechsler scales are among the most widely used tests in cognitive and neuropsychological assessments. When assessing children aged 6:0-7:7 years the clinician can choose between Wechsler Preschool and Primary Scale of Intelligence - Fourth Edition (WPPSI-IV) and Wechsler Intelligence Scale for Children - Fifth Edition (WISC-V). Information about how the tests function and differ in this overlapping age range is limited. Using a between-subjects design, the present study compared the cognitive profiles of typically developing Swedish-speaking children in Finland in this overlapping age range (6:1 - 7:2 years), assessed with the Swedish versions of either WPPSI-IV (n = 38) or WISC-V (n = 24). Profile analyses and one-way ANCOVA were performed to investigate differences in the comparable subtests, indexes and Full Scale IQ. On the subtest level, children assessed with WISC-V had significantly lower scores on the subtests Vocabulary, Matrix Reasoning, and Bug/Symbol Search compared to children assessed with WPPSI-IV. On the index level, scores for the Verbal Comprehension Index and the Fluid Reasoning Index were significantly lower for children assessed with WISC-V. The Full Scale IQ was significantly lower on WISC-V. Taken together, the findings indicate that WPPSI-IV and WISC-V produce partly different cognitive profiles. These differences are important to recognize when choosing which test to use and when interpreting the results of clinical assessments of children in this age group.

Normierung der Testbatterie COGBAT bei Jugendlichen im Alter von 12 bis 15 Jahren

Zusammenfassung: Das Jugendalter stellt eine wichtige Phase in der Entwicklung der Verarbeitungsgeschwindigkeit, der Aufmerksamkeit, des Gedächtnisses und der exekutiven Funktionen dar. Im Rahmen einer Normierungsstudie der kognitiven Basistestung (COGBAT) für das Jugendalter wurden Testwerte bei n = 269 Jugendlichen im Alter von 12 bis 15 Jahren erhoben und mit den Normen der Altersgruppe der 16- bis 30-Jährigen verglichen. Zusätzlich wurde überprüft, inwiefern sich diese Testergebnisse in der subjektiven Einschätzung zur Leistungsfähigkeit (FLei) und Psychopathologie (SDQ) abbilden lassen. Im Jugendalter zeigte sich ein starker Zuwachs in der kognitiven Flexibilität, der Verarbeitungs- und Reaktionsgeschwindigkeit sowie der Inhibitions- und Planungsfähigkeit. Ein bedeutsamer Geschlechtsunterschied fand sich in der Inhibition, mit stärkeren Leistungen bei Mädchen als bei Jungen. Zwischen den Testergebnissen und den subjektiven Einschätzungen zeigten sich keine Zusammenhänge.

Cultural Influences on the Development of Children's Memory and Cognition

Memory is socially constructed. The types of information that children pay attention to and remember, as well as how children organize and recall their memories can differ as a function of sociocultural background. This chapter presents an overview of cultural variations on children's memory and cognition. We draw attention to the necessity of conducting controlled experiments to examine cultural differences in the specific processes involved in episodic memory (e.g., encoding, retention, discrimination skills). We highlight potential challenges (e.g., language, measurement equivalence) that researchers need to overcome to conduct valid cross-cultural research. In light of cultural transformations in recent decades, we outline promising avenues for future research as well as the applications of this research to important issues for forensics and immigrants and asylum-seekers.

A.R. Luria’s Approach to Neuropsychological Assessment and Rehabilitation

Luria is one of the most influential authors in cognitive neuroscience, and in particular neuropsychology. New scientific achievements and clinical observations have significantly supported many of his suggestions and hypotheses. The article describes the basic concepts of neuropsychological evaluation and rehabilitation, associated with the method of syndrome analysis developed by Luria for diagnosis mental function and focus in the qualitative interpretation of the results neuropsychological diagnosis. Luria is regarded as a pioneer in cognitive rehabilitation. His ideas have maintained relevance and have continued to be developed and analyzed. Luria is presented as one of the major founders of contemporary neuropsychology from the fundamental point of view and the clinical perspective. His influence has continued significantly during the 21st century.

Even subtle cultural differences affect face tuning

Culture shapes social cognition in many ways. Yet cultural impact on face tuning remains largely unclear. Here typically developing females and males from the French-speaking part of Switzerland were presented with a set of Arcimboldo-like Face-n-Food images composed of food ingredients and in different degree resembling a face. The outcome had been compared with previous findings obtained in young adults of the South-West Germany. In that study, males exhibit higher thresholds for face tuning on the Face-n-Food task than females. In Swiss participants, no gender differences exist in face tuning. Strikingly, males from the French-speaking part of Switzerland possess higher sensitivity to faces than their German peers, whereas no difference in face tuning occurs between females. The outcome indicates that even relatively subtle cultural differences as well as culture by gender interaction can modulate social cognition. Clarification of the nature of cultural impact on face tuning as well as social cognition at large is of substantial value for understanding a wide range of neuropsychiatric and neurodevelopmental conditions.