scholarly journals Effect of perceived interpersonal closeness on the joint Simon effect in adolescents and adults

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Raheleh Shafaei ◽  
Zahra Bahmani ◽  
Bahador Bahrami ◽  
Maryam Vaziri-Pashkam

Abstract Here, we explored the role of perceived interpersonal closeness in joint action using the joint Simon task in adolescents and adults. In a two-choice reaction time task, spatially assigned responses to non-spatial stimulus features are faster when the stimulus and response are in congruent locations than not. This phenomenon is called Simon effect and is absent or strongly attenuated when a participant responds to only one of the stimuli. However, the effect reappears when two participants carry out the same go/no-go tasks cooperatively. This re-emergence of the Simon effect in joint action is called the joint Simon effect (JSE). In this study, we first replicated the standard and joint Simon effects in adolescents (n = 43), as well as adults (n = 39) with similar magnitude of the effects in the two age groups. The magnitude of the JSE was positively correlated with the level of closeness as measured by Inclusion of Other in the Self scale. This correlation was not significantly different in adolescents (n = 73) compared to adults (n = 71). Our findings show that joint action is sensitive to the social factor such as interpersonal closeness, and the underlying mechanisms are already mature by adolescence.

2019 ◽  
Author(s):  
Raheleh Shafaei ◽  
Zahra Bahmani Dehkordi ◽  
Bahador Bahrami ◽  
Maryam Vaziri-Pashkam

Here we investigated the effect of interpersonal closeness on joint action using the joint Simon task in adolescents and adults. In a two-choice reaction time task, spatially defined responses to non-spatial stimulus attributes are faster when stimulus and response locations are congruent than when they are incongruent. This phenomenon is called Simon effect and is absent or strongly weakened when a participant responds to only one of the stimuli. However, the effect reappears when two participants carry out the same go/no-go tasks cooperatively. This re-emergence of the Simon effect in joint action is called the joint Simon effect (JSE). In this study, we first replicated the standard and joint Simon effects in adolescents, as well as adults with similar magnitude of the effects in the two age groups. The magnitude of the JSE was positively correlated with the level of closeness as measured by Inclusion of Other in the Self scale. This correlation was not significantly different in adolescents compared to adults. Our findings show that joint action is sensitive to the social factor such as interpersonal closeness, and the underlying mechanisms are already mature by adolescence.


2008 ◽  
Vol 24 (4) ◽  
pp. 218-225 ◽  
Author(s):  
Bertram Gawronski ◽  
Roland Deutsch ◽  
Etienne P. LeBel ◽  
Kurt R. Peters

Over the last decade, implicit measures of mental associations (e.g., Implicit Association Test, sequential priming) have become increasingly popular in many areas of psychological research. Even though successful applications provide preliminary support for the validity of these measures, their underlying mechanisms are still controversial. The present article addresses the role of a particular mechanism that is hypothesized to mediate the influence of activated associations on task performance in many implicit measures: response interference (RI). Based on a review of relevant evidence, we argue that RI effects in implicit measures depend on participants’ attention to association-relevant stimulus features, which in turn can influence the reliability and the construct validity of these measures. Drawing on a moderated-mediation model (MMM) of task performance in RI paradigms, we provide several suggestions on how to address these problems in research using implicit measures.


Author(s):  
Luisa Lugli ◽  
Stefania D’Ascenzo ◽  
Roberto Nicoletti ◽  
Carlo Umiltà

Abstract. The Simon effect lies on the automatic generation of a stimulus spatial code, which, however, is not relevant for performing the task. Results typically show faster performance when stimulus and response locations correspond, rather than when they do not. Considering reaction time distributions, two types of Simon effect have been individuated, which are thought to depend on different mechanisms: visuomotor activation versus cognitive translation of spatial codes. The present study aimed to investigate whether the presence of a distractor, which affects the allocation of attentional resources and, thus, the time needed to generate the spatial code, changes the nature of the Simon effect. In four experiments, we manipulated the presence and the characteristics of the distractor. Findings extend previous evidence regarding the distinction between visuomotor activation and cognitive translation of spatial stimulus codes in a Simon task. They are discussed with reference to the attentional model of the Simon effect.


2012 ◽  
Vol 75 (7) ◽  
pp. 321-329 ◽  
Author(s):  
Batya Engel-Yeger

Purpose: The purpose of this study was to (1) validate the Hebrew version of the Adolescent/Adult Sensory Profile (AASP); (2) screen sensory processing difficulties, as expressed in daily living in a vast range of ages of healthy Israeli adolescents, adults and older people; and (3) examine gender effect on sensory processing in the different age groups. Findings: Good internal consistency was found for each of the AASP quadrants, although factor analysis did not find total similarity between the Hebrew version of the AASP and the original AASP. Sensory processing difficulties were shown by 22–42% of the participants in the different age groups. Older participants had lower tendency for Sensation Seeking. Females were more sensitive than males in the age groups of 11–17 years and 18–64 years. Conclusion: In general, the Hebrew version of the AASP was found to be valid and succeeded in profiling sensory processing difficulties along the life span of typical Israeli adolescents and adults. Further studies should apply the Hebrew version of the AASP to screen sensory processing difficulties among individuals with disabilities and elaborate their impact on people's performance/participation in daily activities.


2004 ◽  
Vol 16 (8) ◽  
pp. 1339-1351 ◽  
Author(s):  
Kathleen M. Thomas ◽  
Ruskin H. Hunt ◽  
Nathalie Vizueta ◽  
Tobias Sommer ◽  
Sarah Durston ◽  
...  

Prevailing theories of implicit or unaware learning propose a developmental invariance model, with implicit function maturing early in infancy or childhood despite prolonged improvements in explicit or intentional learning and memory systems across childhood. Neuroimaging studies of adult visuomotor sequence learning have associated fronto-striatal brain regions with implicit learning of spatial sequences. Given evidence of continued development in these brain regions during childhood, we compare implicit sequence learning in adults and 7- to 11-year-old children to examine potential developmental differences in the recruitment of fronto-striatal circuitry during implicit learning. Participants performed a standard serial reaction time task. Stimuli alternately followed a fixed 10-step sequence of locations or were presented in a pseudorandom order of locations. Adults outperformed children, achieving a significantly larger sequence learning effect and showing learning more quickly than children. Age-related differences in activity were observed in the premotor cortex, putamen, hippocampus, inferotemporal cortex, and parietal cortex. We observed differential recruitment of cortical and subcortical motor systems between groups, presumably reflecting age differences in motor response execution. Adults showed greater hippocampal activity for sequence trials, whereas children demonstrated greater signal during random trials. Activity in the right caudate correlated significantly with behavioral measures of implicit learning for both age groups, although adults showed greater signal change than children overall, as would be expected given developmental differences in sequence learning magnitude. These results challenge the idea of developmental invariance in implicit learning and instead support a view of parallel developments in implicit and explicit learning systems.


Sensors ◽  
2019 ◽  
Vol 19 (15) ◽  
pp. 3377 ◽  
Author(s):  
Daniel Arvidsson ◽  
Jonatan Fridolfsson ◽  
Christoph Buck ◽  
Örjan Ekblom ◽  
Elin Ekblom-Bak ◽  
...  

Accelerometer calibration for physical activity (PA) intensity is commonly performed using Metabolic Equivalent of Task (MET) as criterion. However, MET is not an age-equivalent measure of PA intensity, which limits the use of MET-calibrated accelerometers for age-related PA investigations. We investigated calibration using VO2net (VO2gross − VO2stand; mL⋅min−1⋅kg−1) as criterion compared to MET (VO2gross/VO2rest) and the effect on assessment of free-living PA in children, adolescents and adults. Oxygen consumption and hip/thigh accelerometer data were collected during rest, stand and treadmill walk and run. Equivalent speed (Speedeq) was used as indicator of the absolute speed (Speedabs) performed with the same effort in individuals of different body size/age. The results showed that VO2net was higher in younger age-groups for Speedabs, but was similar in the three age-groups for Speedeq. MET was lower in younger age-groups for both Speedabs and Speedeq. The same VO2net-values respective MET-values were applied to all age-groups to develop accelerometer PA intensity cut-points. Free-living moderate-and-vigorous PA was 216, 115, 74 and 71 min/d in children, adolescents, younger and older adults with VO2net-calibration, but 140, 83, 74 and 41 min/d with MET-calibration, respectively. In conclusion, VO2net calibration of accelerometers may provide age-equivalent measures of PA intensity/effort for more accurate age-related investigations of PA in epidemiological research.


2019 ◽  
Vol 43 (5) ◽  
pp. 393-402 ◽  
Author(s):  
Eva Oesterlen ◽  
Katja Seitz-Stein

In contrast to classical phonological span tasks, which require verbal recall, those used in self-reliant, group-administrable working memory measurement contain a visuospatial response format. As a consequence, these tasks involve recoding, executive, and visual search requirements in addition to encoding and storage processes. To examine age-dependent effects of these special requirements, tablet-based word and digit span tasks with a visuospatial response format were compared to corresponding tasks with a verbal response format in first and second graders, third and fourth graders, and adults ( N = 105). Whereas children’s performance was impaired by the visuospatial response format, adults’ performance was not. Whether the arrangement of stimuli in the visuospatial response format—either variable or fixed—has differential effects on performance in children and adults ( N = 434) was examined in a second experiment. No substantial differences between variable and fixed response format were found in any of the age groups. Possible underlying mechanisms for age-dependent effects of response format and the role of executive functions and visual search in automatized phonological span tasks are discussed.


2020 ◽  
Vol 4 (6) ◽  
Author(s):  
Ana Maria Pita Ruiz ◽  
Margareth Guimarães Lima ◽  
Lhais de Paula Barbosa Medina ◽  
Renata Luz Pinto ◽  
Marilisa Berti de Azevedo Barros ◽  
...  

ABSTRACT Background The WHO currently recommends a daily sodium intake of 2 g and has established the goal of a 30% reduction in mean salt intake by 2025. Objective We sought to estimate sodium intake in study participants according to the locations of where they consumed meals and their demographic and socioeconomic characteristics and practices related to salt consumption. Methods A population-based, cross-sectional study was conducted with a sample of 2574 individuals aged ≥10 y who answered the 2015 Campinas-Brazil Nutrition Survey. Mean sodium intake was estimated using a 24-h recall log and associations with the independent variables were tested using generalized regression analysis stratified by age group. Results Sodium intake was higher in male participants as well as adolescents and adults who reported eating ≥1 meal outside the home (6.07% and 7.06% increase, respectively). Per meal, sodium was consumed more outside the home at breakfast, during an afternoon snack, and at dinner among adolescents. No significant differences were found in the analysis by type of meal among the adults and seniors. Conclusions Sodium intake exceeded the WHO recommendation in all age groups analyzed. Having ≥1 meal outside the home was associated with greater sodium intake among adolescents and adults. Measures to regulate the food industry and dietary/nutritional education strategies targeting consumers are important to reducing the sodium intake of the population.


2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S257-S257
Author(s):  
Rehab A Sherlala ◽  
Candace M Kammerer ◽  
Allison L Kuipers ◽  
Mary K Wojczynski ◽  
Svetlana Ukraintseva ◽  
...  

Abstract Serum levels of insulin-like growth factor 1 (IGF-1) and measures of adiposity, such as body mass index (BMI), are associated with susceptibility to age-related diseases. Previous reports of the relationship between IGF-1 and BMI ranged from positive to negative to no relationship, perhaps because previous reports studied different age cohorts. Using data on 4270 participants (aged 24-110 years) from the Long Life Family Study, we investigated the relationship between IGF-1 and BMI overall and by age groups. IGF-1 and BMI were positively correlated in the total sample (β=0.161, r2= 0.0038, p=1.8-05). However, further analyses revealed that the relationship between IGF-1 and BMI varied by age quartile: in the 1st quartile (24-58yo) the relationship was negative (β=−0.204, r2= 0.011, p=0.0008); in the 2nd quartile (59-66yo) the relationship was negative but non-significant (β=−0.069, r2= 0.0012, p=0.28); in the 3rd quartile (67-86yo) the relationship was positive but non-significant (β=0.106, r2= 0.002, p=0.13); and in the 4th quartile (87-110yo) the relationship was positive (β=0.388, r2= 0.019, p=1.2−05). This pattern did not differ by sex. We also detected a similar age-related pattern between IGF-1 and BMI using an independent dataset (NHANES III), comprising 2550 men and women aged 20-90 years. Our results may clarify some of the inconsistency in previous literature about the relationship between IGF-1 and BMI. Additional studies of IGF-1 and adiposity measures are needed to better understand the underlying mechanisms involved.


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