From co-regulation to self-regulation: Maternal soothing strategies and self-efficacy in relation to maternal reports of infant regulation at 3 and 7 months.

This study, conducted in Germany, examines the role of maternal soothing strategies to explain the association of maternal self-efficacy with infant regulation (crying and sleeping behavior). Questionnaire data of 150 mothers, living in Germany, with mixed ethnic and educational backgrounds were collected when infants were 3 and 7 months old. Two types of maternal soothing strategies were distinguished: close soothing, involving close physical and emotional contact, and distant soothing, involving physical and emotional distancing from the infant. A cross-sectional SEM at 3 months indicated that maternal self-efficacy is associated with reported infant regulation through distant soothing strategies. Low maternal self-efficacy was associated with frequent maternal use of distant soothing, which in turn was related to reported infant regulation problems, that is, non-soothability and greater crying frequency. Frequent use of close soothing was associated with reported infant sleeping behavior, that is, frequent night-time awakenings. A longitudinal SEM further indicated that the effects of close soothing persisted at least until the infants' age of 7 months. The study showed how low maternal self-efficacy, increased use of distant soothing, and reported early infant regulation problems are intertwined and that, due to their persisting positive effect on infant soothability, close soothing better supports infant development.

Este estudio examina el papel de las estrategias calmantes maternas para explicar la asociación entre auto efectividad materna y la regulación del infante (comportamiento de llanto y de dormir). Información de cuestionario de N = 150 madres de trasfondos étnicos y educativos mixtos se recogió cuando los infantes tenían tres y siete meses de nacidos. Dos tipos de estrategias calmantes maternas se identificaron: estrategia calmante cercana, la cual trata del contacto físico y emocional cercano, y estrategia calmante distante, la cual trata del distanciamiento físico y emocional con el infante. Un estudio de Modelo de Ecuación Estructural (SEM) transversal a los tres meses indicó que la auto efectividad materna se asocia con la reportada regulación del infante a través de estrategias calmantes distantes. La baja auto efectividad materna se asoció con el frecuente uso materno de estrategias calmantes distantes, lo cual a su vez se relacionó con los reportados problemas de regulación del infante, tales como el no calmarse y la mayor frecuencia del llanto. El uso frecuente de estrategias calmante cercanas se asoció con el reportado comportamiento de dormir del infante, tal como el frecuente despertar nocturno. Un estudio de tipo SEM longitudinal indicó más allá que los efectos de las estrategias calmantes cercanas persistían por lo menos hasta que los infantes tenían siete meses de edad. El estudio mostró cómo la baja auto efectividad materna, el uso incrementado de estrategias calmantes distantes, así como los reportados tempranos problemas de regulación del infante están entremezclados y que, debido a su persistente efecto positivo en calmar al infante, las estrategias calmantes cercanas apoyan mejor el desarrollo del infante.

Cette étude examine le rôle des stratégies maternelles d'apaisement pour expliquer le lien de l'auto-efficacité maternelle avec la régulation du nourrisson (pleurs et comportement du sommeil). Des données d'une questionnaire de N = 150 mères issues de milieux ethniques et éducationnels différents ont été recueillies quand les nourrissons avaient trois et sept mois. Deux types de stratégies maternelles d'apaisement ont été distingués: l'apaisement proche, avec un contact physique et émotionnel proche, et l'apaisement distant, avec une distanciation physique et émotionnelle du nourrisson. Une coupe transversale SEM à trois mois a indiqué que l'auto-efficacité maternelle est liée à la régulation infantile signalée au travers de stratégies d'apaisement distantes. Une auto-efficacité maternelle faible était liée à l'utilisation maternelle fréquente de stratégies d'apaisement, qui à son tour était liée aux problèmes signalés de régulation du nourrisson, comme par exemple le fait de ne pas pouvoir être apaisé ou une fréquence de pleurs plus grande. L'utilisation fréquente de stratégies d'apaisement proche était liée au comportement de sommeil du nourrisson signalé, comme par exemple des réveils nocturnes fréquents. Un SEM longitudinal a de surcroit indiqué que les effets de stratégies d'apaisement proches persistaient au moins jusqu'à l'âge de sept mois des nourrissons. L'étude a montré comment l'auto-efficacité maternelle faible, une utilisation accrue de stratégies d'apaisement distant et les problèmes signalés de régulation précoce des nourrissons sont imbriqués et que, du fait de leur effet positif persistant sur l'apaisement du nourrisson, les stratégies d'apaisement proches soutiennent mieux le développement du nourrisson.

Multistable perception elicits compensatory alpha activity in older adults.

Multistable stimuli lead to the perception of two or more alternative perceptual experiences that spontaneously reverse from one to the other. This property allows researchers to study perceptual processes that endogenously generate and integrate perceptual information. These endogenous processes appear to be slowed down around the age of 55 where participants report significantly lower perceptual reversals. This study aimed to identify neural correlates of this aging effect during multistable perception utilizing a multistable version of the stroboscopic alternative motion paradigm (SAM: endogenous task) and a control condition (exogenous task). Specifically, age-related differences in perceptual destabilization and maintenance processes were examined through alpha responses. Electroencephalography (EEG) of 12 older and 12 young adults were recorded during SAM and control tasks. Alpha band activity (8-14 Hz) was obtained by wavelet-transformation of the EEG signal and analyzed for each experimental condition. Endogenous reversals induced gradual decrease in posterior alpha activity in young adults which is a replication of previous studies' findings. Alpha desynchronization was shifted to anterior areas and prevalent across the cortex except the occipital area for older adults. Alpha responses did not differ between the groups in the control condition. These findings point to recruitment of compensatory alpha networks for maintenance of endogenously generated percepts. Increased number of networks responsible for maintenance might have extended the neural satiation duration and led to decreased reversal rates in older adults.

Maturation of the P3 and concurrent oscillatory processes during adolescence.

OBJECTIVE: During adolescence event-related modulations of the neural response may increase. For slow event-related components, such as the P3, this developmental change may be masked due to increased amplitude levels of ongoing delta and theta oscillations in adolescents. METHODS: In a cross-sectional study design, EEG was measured in 51 participants between 13 and 24years. A visual oddball paradigm was used to elicit the P3. Our analysis focused on fronto-parietal activations within the P3 time-window and the concurrent time-frequency characteristics in the delta (∼0.5-4Hz) and theta (∼4-7Hz) band. RESULTS: The parietal P3 amplitude was similar across the investigated age range, while the amplitude at frontal regions increased with age. The pre-stimulus amplitudes of delta and theta oscillations declined with age, while post-stimulus amplitude enhancement and inter-trial phase coherence increased. These changes affected fronto-parietal electrode sites. CONCLUSIONS: The parietal P3 maximum seemed comparable for adolescents and young adults. Detailed analysis revealed that within the P3 time-window brain maturation during adolescence may lead to reduced spontaneous slow-wave oscillations, increased amplitude modulation and time precision of event-related oscillations, and altered P3 scalp topography. SIGNIFICANCE: Time-frequency analyses may help to distinguish selective neurodevelopmental changes within the P3 time window.