Search results for "neuropsykologia"
showing 10 items of 22 documents
Neural specialization to human faces at the age of 7 months.
2021
AbstractSensitivity to human faces has been suggested to be an early emerging capacity that promotes social interaction. However, the developmental processes that lead to cortical specialization to faces has remained unclear. The current study investigated both cortical sensitivity and categorical specificity through event-related potentials (ERPs) previously implicated in face processing in 7-month-old infants (N290) and adults (N170). Using a category-specific repetition/adaptation paradigm, cortical specificity to human faces, or control stimuli (cat faces), was operationalized as changes in ERP amplitude between conditions where a face probe was alternated with categorically similar or …
Influence of Musical Expertise on the processing of Musical Features in a Naturalistic Setting
2019
Musical training causes structural and functional changes in the brain due to its sensory-motor demands, but the modulatory effect of musical training on music feature processing in the brain in a continuous music listening paradigm, has not been investigated thus far. In this work, we investigate the differences between musicians and non-musicians in the encoding of musical features encompassing musical timbre, rhythm and tone. 18 musicians and 18 non-musicians were scanned using fMRI while listening to 3 varied stimuli. Acoustic features corresponding to timbre, rhythm and tone were computationally extracted from the stimuli and correlated with brain responses, followed by t-tests on grou…
The effect of alertness and attention on the modulation of the beta rhythm to tactile stimulation
2021
Abstract Beta rhythm modulation has been used as a biomarker to reflect the functional state of the sensorimotor cortex in both healthy subjects and patients. Here, the effect of reduced alertness and active attention to the stimulus on beta rhythm modulation was investigated. Beta rhythm modulation to tactile stimulation of the index finger was recorded simultaneously with MEG and EEG in 23 healthy subjects (mean 23, range 19–35 years). The temporal spectral evolution method was used to obtain the peak amplitudes of beta suppression and rebound in three different conditions (neutral, snooze, and attention). Neither snooze nor attention to the stimulus affected significantly the strength of…
Mieleni minun tekevi, aivoni ajattelevi : erot kehollisuuden merkityksestä mielen hoitamisen yhteydessä Lauri Rauhalan monopluralistisen ihmiskäsityk…
2004
Auditory P3a response to native and foreign speech in children with or without attentional deficit
2023
The aim of this study was to investigate the attentional mechanism in speech processing of native and foreign language in children with and without attentional deficit. For this purpose, the P3a component, cognitive neuromarker of the attentional processes, was investigated in a two-sequence two-deviant oddball paradigm using Finnish and English speech items via event-related potentials (ERP) technique. The difference waves reflected the temporal brain dynamics of the P3a response in native and foreign language contexts. Cluster-based permutation tests evaluated the group differences over the P3a time window. A correlation analysis was conducted between the P3a response and the attention sc…
Three different approaches to cognitive fatigue in patients with a mild form of multiple sclerosis : objective cognitive, subjective cognitive and ne…
2017
Tämän tutkimuksen tarkoitus oli arvioida kognitiivista uupumusta lievää multippeli skleroosin (MS) muotoa sairastavilla potilailla kolmea eri lähestymistapaa käyttäen: objektiivista kognitiivista, subjektiivista kognitiivista ja neurofysiologista. Objektiivista kognitiivista uupumusta arvioitiin tarkkaavuuden ylläpitoa, reaktionopeutta ja työmuistia mittaavilla tehtävillä. Subjektiivista kognitiivista uupumusta sekä elämänlaatua arvioitiin itsearvioilla. Neurofysiologiset mittaukset käsittivät aivojen sähköiin herätevasteisiin perustuvia observaatioita. Mittareina olivat kontingentti negatiivinen variaatio (CNV) ja P3. Tutkimukseen osallistui 20 MS-tautia sairastavaa ja 20 verrallistettua t…
Lasten tarkkaavuushäiriö: havaintoja vanhempien arvioista ja neuropsykologisista tutkimuksista
2002
Activity level in left auditory cortex predicts behavioral performance in inhibition tasks in children
2022
Funding Information: We are grateful to Hanna-Maija Lapinkero, Suvi Karjalainen, Maria Vesterinen & Janne Rajaniemi for help with data collection and to Amit Jaiswal, Erkka Heinilä and Jukka Nenonen for their help with preprocessing and scripting. This work was supported by EU project ChildBrain (Horizon2020 Marie Skłodowska-Curie Action (MSCA) Innovative Training Network (ITN) – European Training Network (ETN), grant agreement no. 641652) and the Academy of Finland grant number 311877. Publisher Copyright: © 2022 Sensory processing during development is important for the emerging cognitive skills underlying goal-directed behavior. Yet, it is not known how auditory processing in children is…