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Development of behavioral parameters and ERPs in a novel-target visual detection paradigm in children, adolescents and young adults.

Rojas-Benjumea MÁ, Sauqué-Poggio AM, Barriga-Paulino CI, Rodríguez-Martínez EI, Gómez CM - Behav Brain Funct (2015)

Bottom Line: Behavioral results showed good performance in children that improved with age: a decrease in RTs and errors and an increase in the d' sensitivity parameter with age were obtained.The modulation of the P3b component by novel targets was statistically significant in all the age groups, but it decreased in amplitude with age.Peak latencies of the FSP and P3b components decreased with age.

View Article: PubMed Central - PubMed

Affiliation: Human Psychobiology Laboratory, Experimental Psychology Department, University of Seville, Sevilla, Spain.

ABSTRACT

Background: The present study analyzes the development of ERPs related to the process of selecting targets based on their novelty.

Methods: One hundred and sixty-seven subjects from 6 to 26 years old were recorded with 30 electrodes during a visual target novelty paradigm.

Results: Behavioral results showed good performance in children that improved with age: a decrease in RTs and errors and an increase in the d' sensitivity parameter with age were obtained. In addition, the C response bias parameter evolved from a conservative to a neutral bias with age. Fronto-polar Selection Positivity (FSP) was statistically significant in all the age groups when standards and targets were compared. There was a statistically significant difference in the posterior Selection Negativity (SN) between the target and standard conditions in all age groups. The P3a component obtained was statistically significant in the emergent adult (18-21 years) and young adult (22-26 years) groups. The modulation of the P3b component by novel targets was statistically significant in all the age groups, but it decreased in amplitude with age. Peak latencies of the FSP and P3b components decreased with age.

Conclusions: The results reveal differences in the ERP indexes for the cognitive evaluation of the stimuli presented, depending on the age of the subjects. The ability of the target condition to induce the modulation of the studied components would depend on the posterior-anterior gradient of cortex maturation and on the gradient of maturation of the low to higher order association areas.

No MeSH data available.


Mean amplitude values of the ERPs in target and standard conditions at the latencies of the P2f, P2p, P3a, P3b and SW components (a, b, c, d and e, respectively). FSP and SN must be interpreted as the difference waves of the target minus standard conditions in (a) and (b). The represented amplitudes correspond to the average voltage amplitude in the selected electrodes for each component (see the Methods section). T Target, S Standard
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Fig6: Mean amplitude values of the ERPs in target and standard conditions at the latencies of the P2f, P2p, P3a, P3b and SW components (a, b, c, d and e, respectively). FSP and SN must be interpreted as the difference waves of the target minus standard conditions in (a) and (b). The represented amplitudes correspond to the average voltage amplitude in the selected electrodes for each component (see the Methods section). T Target, S Standard

Mentions: Figure 3 shows the ERPs for mid-line electrodes in the two studied conditions: target and standard stimuli. The amplitudes for target stimuli were higher than those for standard stimuli. Children and pre-adolescents presented a different morphology of ERPs compared to adults. The difference wave obtained by subtracting the ERPs of standard stimuli from the ERPs of target stimuli is presented in Fig. 4. The morphology of the difference wave suggests that differences between age groups are due to different latencies rather than to different morphologies, given that the same components appeared in all the age groups (except P3a in children), although with later latencies in the two younger groups. Figure 5 presents the topographies of the different components obtained from the difference wave for the different age groups. Figure 6 shows the mean ERP values in the target and standard conditions in the latencies corresponding to the SN, FSP, P3a, P3b and SW components.Fig. 3


Development of behavioral parameters and ERPs in a novel-target visual detection paradigm in children, adolescents and young adults.

Rojas-Benjumea MÁ, Sauqué-Poggio AM, Barriga-Paulino CI, Rodríguez-Martínez EI, Gómez CM - Behav Brain Funct (2015)

Mean amplitude values of the ERPs in target and standard conditions at the latencies of the P2f, P2p, P3a, P3b and SW components (a, b, c, d and e, respectively). FSP and SN must be interpreted as the difference waves of the target minus standard conditions in (a) and (b). The represented amplitudes correspond to the average voltage amplitude in the selected electrodes for each component (see the Methods section). T Target, S Standard
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4491272&req=5

Fig6: Mean amplitude values of the ERPs in target and standard conditions at the latencies of the P2f, P2p, P3a, P3b and SW components (a, b, c, d and e, respectively). FSP and SN must be interpreted as the difference waves of the target minus standard conditions in (a) and (b). The represented amplitudes correspond to the average voltage amplitude in the selected electrodes for each component (see the Methods section). T Target, S Standard
Mentions: Figure 3 shows the ERPs for mid-line electrodes in the two studied conditions: target and standard stimuli. The amplitudes for target stimuli were higher than those for standard stimuli. Children and pre-adolescents presented a different morphology of ERPs compared to adults. The difference wave obtained by subtracting the ERPs of standard stimuli from the ERPs of target stimuli is presented in Fig. 4. The morphology of the difference wave suggests that differences between age groups are due to different latencies rather than to different morphologies, given that the same components appeared in all the age groups (except P3a in children), although with later latencies in the two younger groups. Figure 5 presents the topographies of the different components obtained from the difference wave for the different age groups. Figure 6 shows the mean ERP values in the target and standard conditions in the latencies corresponding to the SN, FSP, P3a, P3b and SW components.Fig. 3

Bottom Line: Behavioral results showed good performance in children that improved with age: a decrease in RTs and errors and an increase in the d' sensitivity parameter with age were obtained.The modulation of the P3b component by novel targets was statistically significant in all the age groups, but it decreased in amplitude with age.Peak latencies of the FSP and P3b components decreased with age.

View Article: PubMed Central - PubMed

Affiliation: Human Psychobiology Laboratory, Experimental Psychology Department, University of Seville, Sevilla, Spain.

ABSTRACT

Background: The present study analyzes the development of ERPs related to the process of selecting targets based on their novelty.

Methods: One hundred and sixty-seven subjects from 6 to 26 years old were recorded with 30 electrodes during a visual target novelty paradigm.

Results: Behavioral results showed good performance in children that improved with age: a decrease in RTs and errors and an increase in the d' sensitivity parameter with age were obtained. In addition, the C response bias parameter evolved from a conservative to a neutral bias with age. Fronto-polar Selection Positivity (FSP) was statistically significant in all the age groups when standards and targets were compared. There was a statistically significant difference in the posterior Selection Negativity (SN) between the target and standard conditions in all age groups. The P3a component obtained was statistically significant in the emergent adult (18-21 years) and young adult (22-26 years) groups. The modulation of the P3b component by novel targets was statistically significant in all the age groups, but it decreased in amplitude with age. Peak latencies of the FSP and P3b components decreased with age.

Conclusions: The results reveal differences in the ERP indexes for the cognitive evaluation of the stimuli presented, depending on the age of the subjects. The ability of the target condition to induce the modulation of the studied components would depend on the posterior-anterior gradient of cortex maturation and on the gradient of maturation of the low to higher order association areas.

No MeSH data available.