Search results for "paradigm"

Rzeczywistość językowa a lingwistyka

2017

Language reality and linguistics. The author considers the ąuestion of the boundaries of language and linguistics, referring to the so-called full scientific theory. In the complex hierarchical-network structure of this theory, one can distinguish three levels: the philosophical basis, the theoretical-methodological level, and the empirical part. The article focuses on the ontological and epistemologica/-axiological assumptions of the theory of language. One may distinguish between four ways of the existence of language reality, which remain in mutual relatedness (concrete texts, language system, individual and col!ective language awareness). Discussing the contemporary cognitive situation …

La atención a la salud materno-infantil en el área de salud de La Ribera (Valencia) desde la perspectiva de las gestantes y las matronas: aproximacio…

2020

Justificación e introducción La atención al parto experimentó profundos cambios durante la segunda mitad del siglo XX con la introducción del parto en el ámbito hospitalario. Como reacción a ello surge el movimiento del parto normal, que pretende humanizar la asistencia al parto que se presta dentro de los hospitales. En cada hospital este proceso se ha desarrollado en diferente tiempo y forma. En el caso del Hospital Universitario de La Ribera (Alzira, Valencia), la introducción de los protocolos de atención al parto normal se produce de forma progresiva entre los años 2011 y 2014. En ese momento, surge la necesidad de explorar la acogida de estos cambios entre las gestantes del área de sa…

TEACHER IN CITIZENSHIP EDUCATION LEARNING PROCESS

2018

The recent reforms in the Latvian general education curriculum along with a school network reorganization have brought new attention  to the issues related to a teacher education and the level of professionalism in everyday teaching work. Soviet-era education and work experience in diverse political and education systems (under the Soviet rule and after the restoration of independence) are factors that should be taken into account when analyzing the teacher in the citizenship education learning process. For the needs of this Paper, the authors used the data of the IEA ICCS 2016 (International Association for the Evaluation of Educational Achievement International Civic and Citizenship Study…

2021

In vowel discrimination, commonly found discrimination patterns are directional asymmetries where discrimination is faster (or easier) if differing vowels are presented in a certain sequence compared to the reversed sequence. Different models of speech sound processing try to account for these asymmetries based on either phonetic or phonological properties. In this study, we tested and compared two of those often-discussed models, namely the Featurally Underspecified Lexicon (FUL) model (Lahiri and Reetz, 2002) and the Natural Referent Vowel (NRV) framework (Polka and Bohn, 2011). While most studies presented isolated vowels, we investigated a large stimulus set of German vowels in a more n…

Reclaiming the Stroop Effect Back From Control to Input-Driven Attention and Perception

2019

According to a growing consensus, the Stroop effect is understood as a phenomenon of conflict and cognitive control. A tidal wave of recent research alleges that incongruent Stroop stimuli generate conflict, which is then managed and resolved by top-down cognitive control. We argue otherwise: control studies fail to account for major Stroop results obtained over a century-long history of research. We list some of the most compelling developments and show that no control account can serve as a viable explanation for major Stroop phenomena and that there exist more parsimonious explanations for other Stroop related phenomena. Against a wealth of studies and emerging consensus, we posit that d…

Individual Independent Component Analysis on EEG: Event-Related Responses Vs. Difference Wave of Deviant and Standard Responses

2016

Independent component analysis (ICA) is often used to spatially filter event-related potentials (ERPs). When an oddball paradigm is applied to elicit ERPs, difference wave (DW, responses of deviant stimuli minus those of standard ones) is often used to remove the common responses between the deviant and the standard. Thus, DW can be produced first, and then ICA is used to decompose the DW. Or, ICA is performed on responses of the deviant and standard stimuli separately, and then DW is applied on the filtered responses. In this study, we compared the two approaches to analyzing mismatch negativity (MMN). We found that DW introduced noise in the time and space domains, resulting in more diffi…

Empirical Mode Decomposition on Mismatch Negativity

2008

Empirical mode decomposition (EMD) has been applied in the various disciplines to extract the desired signal. The basic principle is to decompose a time series into intrinsic mode functions (IFMs) and each IFM corresponds to an oscillation phenomenon. A statistical description of the oscillatory activities of the EEG has been well known. It is desired to extract single oscillatory process from the EEG by EMD. Mismatch negativity (MMN) can be automatically elicited by the deviant stimulus in an oddball paradigm, in which physically the deviant stimulus occurs among repetitive and homogeneous stimuli. MMN thus reflects the ability of the brain to detect changes in auditory stimuli. So, the MM…

Extract Mismatch Negativity and P3a through Two-Dimensional Nonnegative Decomposition on Time-Frequency Represented Event-Related Potentials

2010

This study compares the row-wise unfolding nonnegative tensor factorization (NTF) and the standard nonnegative matrix factorization (NMF) in extracting time-frequency represented event-related potentials—mismatch negativity (MMN) and P3a from EEG under the two-dimensional decomposition The criterion to judge performance of NMF and NTF is based on psychology knowledge of MMN and P3a MMN is elicited by an oddball paradigm and may be proportionally modulated by the attention So, participants are usually instructed to ignore the stimuli However the deviant stimulus inevitably attracts some attention of the participant towards the stimuli Thus, P3a often follows MMN As a result, if P3a was large…

EEG Effective Source Projections Are More Bilaterally Symmetric in Infants Than in Adults

2020

Although anatomical brain hemispheric asymmetries have been clearly documented in the infant brain, findings concerning functional hemispheric specialization have been inconsistent. The present report aims to assess whether bilaterally symmetric synchronous activity between the two hemispheres is a characteristic of the infant brain. To asses cortical bilateral synchronicity, we used decomposition by independent component analysis (ICA) of high-density electroencephalographic (EEG) data collected in an auditory passive oddball paradigm. Decompositions of concatenated 64-channel EEG data epochs from each of 34 typically developing 6-month-old infants and from 18 healthy young adults particip…

Somatosensory mismatch response in young and elderly adults

2014

Aging is associated with cognitive decline and alterations in early perceptual processes. Studies in the auditory and visual sensory modalities have shown that the mismatch negativity [or the mismatch response (MMR)], an event-related potential (ERP) elicited by a deviant stimulus in a background of homogenous events, diminishes with aging and cognitive decline. However, the effects of aging on the somatosensory MMR (sMMR) are not known. In the current study, we recorded ERPs to electrical pulses to different fingers of the left hand in a passive oddball experiment in young (22–36 years) and elderly (66– 95 years) adults engaged in a visual task. The MMR was found to deviants as compared to…