Developmental Changes in Consistency of Preferential Feeling for Peers and Objects around Age Four

2004 ◽  
Vol 94 (1) ◽  
pp. 335-347 ◽  
Author(s):  
Izumi Uehara
Keyword(s):  
Episodic Memory ◽  
Cognitive Abilities ◽  
Critical Period ◽  
Response Pattern ◽  
Mental Image ◽  
Personal Relationships ◽  
Developmental Changes ◽  
Temporal Consistency ◽  
Older Children ◽  
Better Than

When do young children come to have an individual mental image of each peer? Forming a stable impression of each person requires maturation of at least two cognitive abilities, inferring the other's mind and episodic memory. According to past studies, the critical period for both these abilities is around age four. Thus, it was hypothesized that the child begins to form a consistent mental image of each peer at or after age four. To test this hypothesis, the temporal consistency of preference for peers was examined in 3-, 4-, and 5-yr.-olds. Each subject was asked “Who do you like better than others in this class?” once a week for three times (Study 1). The results indicated that most of the 3-yr.-olds answered different names as their favorite friends or nonsense things inconsistently week by week, whereas older children tended to answer the same names across weeks. However, changing the question to “Which object do you like best of these alternatives?” dramatically changed the response pattern (Study 2): preferences among nonhuman objects (playthings) were temporally consistent even for 3-yr.-olds. These results indicate that children before age four do have a temporally consistent feeling toward general objects but do not have a consistent firm feeling about personal relationships among peers. The results are discussed in relation to the critical developmental changes about age 4 in other cognitive abilities.

The Validity of Specific Cognitive Abilities for the Prediction of Training Success in Germany

2014 ◽  
Vol 13 (3) ◽  
pp. 123-133 ◽  
Author(s):  
Wiebke Goertz ◽  
Ute R. Hülsheger ◽  
Günter W. Maier
Keyword(s):  
Cognitive Abilities ◽  
Personnel Selection ◽  
Meta Analysis ◽  
Mental Ability ◽  
Occupational Category ◽  
General Mental Ability ◽  
Training Success ◽  
Specific Cognitive Abilities ◽  
Better Than

General mental ability (GMA) has long been considered one of the best predictors of training success and considerably better than specific cognitive abilities (SCAs). Recently, however, researchers have provided evidence that SCAs may be of similar importance for training success, a finding supporting personnel selection based on job-related requirements. The present meta-analysis therefore seeks to assess validities of SCAs for training success in various occupations in a sample of German primary studies. Our meta-analysis (k = 72) revealed operational validities between ρ = .18 and ρ = .26 for different SCAs. Furthermore, results varied by occupational category, supporting a job-specific benefit of SCAs.

Children show adult-like hippocampal pattern separation for familiar but not novel events

2020 ◽  
Author(s):  
Susan L. Benear ◽  
Elizabeth A. Horwath ◽  
Emily Cowan ◽  
M. Catalina Camacho ◽  
Chi Ngo ◽  
...  
Keyword(s):  
Episodic Memory ◽  
Temporal Lobe ◽  
Medial Temporal Lobe ◽  
Developmental Change ◽  
Pattern Separation ◽  
Developmental Changes ◽  
Similarity Analysis ◽  
Separation Processes ◽  
Parahippocampal Cortex ◽  
Pattern Similarity

The medial temporal lobe (MTL) undergoes critical developmental change throughout childhood, which aligns with developmental changes in episodic memory. We used representational similarity analysis to compare neural pattern similarity for children and adults in hippocampus and parahippocampal cortex during naturalistic viewing of clips from the same movie or different movies. Some movies were more familiar to participants than others. Neural pattern similarity was generally lower for clips from the same movie, indicating that related content taxes pattern separation-like processes. However, children showed this effect only for movies with which they were familiar, whereas adults showed the effect consistently. These data suggest that children need more exposures to stimuli in order to show mature pattern separation processes.

scholarly journals Episodic memory and speed/attention deficits are associated with Alzheimer-typical CSF abnormalities in MCI

2008 ◽  
Vol 14 (4) ◽  
pp. 582-590 ◽  
Author(s):  
ARTO NORDLUND ◽  
SINDRE ROLSTAD ◽  
OLA KLANG ◽  
KARIN LIND ◽  
MONA PEDERSEN ◽  
...  
Keyword(s):  
Episodic Memory ◽  
Neuropsychological Battery ◽  
Prodromal Stage ◽  
Age Norms ◽  
Total Tau ◽  
Prodromal Ad ◽  
Function Language ◽  
T Tau ◽  
Normal Controls ◽  
Better Than

Mild cognitive impairment (MCI) is regarded as the prodromal stage of dementia disorders, such as Alzheimer's disease (AD).Objective: To compare the neuropsychological profiles of MCI subjects with normal concentrations of total tau (T-τ) and Aβ42 in CSF (MCI-norm) to MCI subjects with deviating concentrations of the biomarkers (MCI-dev). MCI-norm (N = 73) and MCI-dev (N = 73) subjects were compared to normal controls (N = 50) on tests of speed/attention, memory, visuospatial function, language and executive function.Results: MCI-norm performed overall better than MCI-dev, specifically on tests of speed and attention and episodic memory. When MCI-dev subjects were subclassified into those with only high T-tau (MCI-tau), only low Aβ42 (MCI-Aβ) and both high T-tau and low Aβ42 (MCI-tauAβ), MCI-tauAβ tended to perform slightly worse. MCI-tau and MCI-Aβ performed quite similarly.Conclusions: Considering the neuropsychological differences, many MCI-norm probably had more benign forms of MCI, or early non-AD forms of neurodegenerative disorders. Although most MCI-dev performed clearly worse than MCI-norm on the neuropsychological battery, some did not show any deficits when compared to age norms. A combination of CSF analyses and neuropsychology could be a step toward a more exact diagnosis of MCI as prodromal AD. (JINS, 2008, 14, 582–590.)

Normative Data for Raven's Coloured Progressive Matrices Scale in Yemen

2008 ◽  
Vol 103 (1) ◽  
pp. 170-172
Author(s):  
Omar Khaleefa ◽  
Richard Lynn
Keyword(s):  
Sex Difference ◽  
Normative Data ◽  
Older Children ◽  
Standardization Sample ◽  
Better Than

Results are reported for a standardization sample of 986 6- to 11-yr.-olds for the Coloured Progressive Matrices in Yemen. Younger children performed better than older children relative to British norms, and there was no significant sex difference in means or variability. In relation to a British IQ of 100 ( SD=15), the sample obtained an average IQ of approximately 81.

Do Monkeys and Young Children Understand Exclusive “Or” Relations? A Commentary on Ferrigno et al. (2021)

2021 ◽  
pp. 095679762110246
Author(s):  
Shalini Gautam ◽  
Thomas Suddendorf ◽  
Jonathan Redshaw
Keyword(s):  
Young Children ◽  
Response Pattern ◽  
Compelling Evidence ◽  
Experimental Task ◽  
Older Children ◽  
Disjunctive Syllogism ◽  
Identical Response ◽  
Exclusive Or

Ferrigno et al. (2021) claim to provide evidence that monkeys can reason through the disjunctive syllogism (given A or B, not A, therefore B) and conclude that monkeys therefore understand logical “or” relations. Yet their data fail to provide evidence that the baboons they tested understood the exclusive “or” relations in the experimental task. For two mutually exclusive possibilities—A or B—the monkeys appeared to infer that B was true when A was shown to be false, but they failed to infer that B was false when A was shown to be true. In our own research, we recently found an identical response pattern in 2.5- to 4-year-old children, whereas 5-year-olds demonstrated that they could make both inferences. The monkeys’ and younger children’s responses are instead consistent with an incorrect understanding of A and B as having an inclusive “or” relation. Only the older children provided compelling evidence of representing the exclusive “or” relation between A and B.

scholarly journals Another bilingual advantage? Perception of talker-voice information

2017 ◽  
Vol 21 (3) ◽  
pp. 523-536 ◽  
Author(s):  
SUSANNAH V. LEVI
Keyword(s):  
Learning Task ◽  
Bilingual Children ◽  
Social Aspect ◽  
Older Children ◽  
Bilingual Advantage ◽  
Bilingual Speakers ◽  
Social Tasks ◽  
Processing Information ◽  
Voice Processing ◽  
Better Than

A bilingual advantage has been found in both cognitive and social tasks. In the current study, we examine whether there is a bilingual advantage in how children process information about who is talking (talker-voice information). Younger and older groups of monolingual and bilingual children completed the following talker-voice tasks with bilingual speakers: a discrimination task in English and German (an unfamiliar language), and a talker-voice learning task in which they learned to identify the voices of three unfamiliar speakers in English. Results revealed effects of age and bilingual status. Across the tasks, older children performed better than younger children and bilingual children performed better than monolingual children. Improved talker-voice processing by the bilingual children suggests that a bilingual advantage exists in a social aspect of speech perception, where the focus is not on processing the linguistic information in the signal, but instead on processing information about who is talking.

scholarly journals Input-specific maturation of NMDAR-mediated transmission onto parvalbumin-expressing interneurons in layers 2/3 of the visual cortex

2018 ◽  
Vol 120 (6) ◽  
pp. 3063-3076 ◽  
Author(s):  
Camilo Ferrer ◽  
Helen Hsieh ◽  
Lonnie P. Wollmuth
Keyword(s):  
Visual Cortex ◽  
Critical Period ◽  
Pyramidal Neurons ◽  
Temporal Integration ◽  
Developmental Changes ◽  
Evoked Responses ◽  
Developmentally Regulated ◽  
Low Frequencies ◽  
Aspartate Receptor ◽  
Synaptic Responses

Parvalbumin-expressing (PV) GABAergic interneurons regulate local circuit dynamics. In terms of the excitation driving PV interneuron activity, the N-methyl-d-aspartate receptor (NMDAR)-mediated component onto PV interneurons tends to be smaller than that onto pyramidal neurons but makes a significant contribution to their physiology and development. In the visual cortex, PV interneurons mature during the critical period. We hypothesize that during the critical period, the NMDAR-mediated signaling and functional properties of glutamatergic synapses onto PV interneurons are developmentally regulated. We therefore compared the α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR)- and NMDAR-mediated synaptic responses before (postnatal days 15–20, P15–P20), during (P25–P40), and after (P50–P60) the visual critical period. AMPAR miniature excitatory postsynaptic currents (mEPSCs) showed a developmental decrease in frequency, whereas NMDAR mEPSCs were absent or showed extremely low frequencies throughout development. For evoked responses, we consistently saw a NMDAR-mediated component, suggesting pre- or postsynaptic differences between evoked and spontaneous neurotransmission. Evoked responses showed input-specific developmental changes. For intralaminar inputs, the NMDAR-mediated component significantly decreased with development. This resulted in adult intralaminar inputs almost exclusively mediated by AMPARs, suited for the computation of synaptic inputs with precise timing, and likely having NMDAR-independent forms of plasticity. In contrast, interlaminar inputs maintained a stable NMDAR-mediated component throughout development but had a shift in the AMPAR paired-pulse ratio from depression to facilitation. Adult interlaminar inputs with facilitating AMPAR responses and a substantial NMDAR component would favor temporal integration of synaptic responses and could be modulated by NMDAR-dependent forms of plasticity. NEW & NOTEWORTHY We show for the first time input-specific developmental changes in the N-methyl-d-aspartate receptor component and short-term plasticity of the excitatory drive onto layers 2/3 parvalbumin-expressing (PV) interneurons in the visual cortex during the critical period. These developmental changes would lead to functionally distinct adult intralaminar and interlaminar glutamatergic inputs that would engage PV interneuron-mediated inhibition differently.

scholarly journals Developmental Fractionation of Working Memory and Response Inhibition During Childhood

2007 ◽  
Vol 54 (1) ◽  
pp. 30-37 ◽  
Author(s):  
Satoshi Tsujimoto ◽  
Mariko Kuwajima ◽  
Toshiyuki Sawaguchi
Keyword(s):  
Working Memory ◽  
Prefrontal Cortex ◽  
Response Inhibition ◽  
Cognitive Functions ◽  
Cognitive Abilities ◽  
Childhood Development ◽  
Neural Systems ◽  
Older Children ◽  
Efficient Processing ◽  
The Relationship

Abstract. The lateral prefrontal cortex (LPFC) plays a major role in both working memory (WM) and response inhibition (RI), which are fundamental for various cognitive abilities. We explored the relationship between these LPFC functions during childhood development by examining the performance of two groups of children in visuospatial and auditory WM tasks and a go/no-go RI task. In the younger children (59 5- and 6-year-olds), performance on the visuospatial WM task correlated significantly with that in the auditory WM task. Furthermore, accuracy in these tasks correlated significantly with performance on the RI task, particularly in the no-go trials. In contrast, there were no significant correlations among those tasks in older children (92 8- and 9-year-olds). These results suggest that functional neural systems for visuospatial WM, auditory WM, and RI, especially those in the LPFC, become fractionated during childhood, thereby enabling more efficient processing of these critical cognitive functions.

scholarly journals Performance in Nonword Repetition Tasks among Mandarin- English Bilingual Children in Malaysia

2020 ◽  
Vol 28 (4) ◽  
Author(s):  
Chai Ping Woon ◽  
Ngee Thai Yap ◽  
Hui Woan Lim
Keyword(s):  
Language Impairment ◽  
Short Term Memory ◽  
Age Groups ◽  
Nonword Repetition ◽  
Developmental Trend ◽  
Older Children ◽  
Development Delay ◽  
Qualitative Measure ◽  
Larger Sample ◽  
Better Than

The nonword repetition (NWR) task has been used to measure children’s expressive language skills, and it has been argued to have potential as an early language delay/ impairment detection tool as the NWR task can be conducted rather easily and quickly to obtain a quantitative as well as a qualitative measure of children’s attention to lexical and phonological information. This paper reports the performance of two NWR tasks among thirty bilingual Mandarin-English preschoolers between the age of four through six. The study indicated that performance in the NWR tasks showed a developmental trend with older children performing better than younger children. Word length also had a significant effect on performance, possibly an effect from better short-term memory capacity as the child grew older. The children also performed better in the Mandarin NWR task compared to the English NWR task. These findings suggest potential clinical applications for diagnosis of children with language impairment or at risk of language development delay. However, further studies should improve on the tasks to verify its efficacy and to obtain norms for performance with a larger sample of children at various age groups.

scholarly journals The Use of Kinetic Imagery by Children and Adults

1984 ◽  
Vol 1 (1) ◽  
pp. 11-20
Author(s):  
Linda J. Anooshian ◽  
Katryn Wilson ◽  
Alice A. D'Acosta
Keyword(s):  
Mental Imagery ◽  
Age Differences ◽  
Mental Representation ◽  
Response Times ◽  
Developmental Changes ◽  
Horizontal Movement ◽  
Performance Levels ◽  
Task Administration ◽  
Better Than

In this study, we examined developmental improvement in kinetic imagery skills as related to differences in the utilizability vs. evocability of those skills. Analyses were conducted on performance levels and response times for task trials in which participants were required to determine which of 3 larger blocks could be "made" by combining (through imagery) 2 smaller blocks. Adults performed better than did 9- or 11-year-olds, especially for trials that required mental representation of rotation as well as horizontal movement. Examination of the effects of 2 conditions of task administration indicated no developmental changes in the adjustment of methods of task solution to specific instructions. However, analyses of response times suggested that age differences in performance levels could be attributed to differences in the degree to which possibilities of ways in which blocks could be combined through mental imagery were exhaustively examined.

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