Научный семинар лаборатории когнитивной психофизиологии: доклад профессора Киммо Алхо (Финляндия) "Активность мозга и одновременное выполнение двух задач"

 Лаборатория когнитивной психофизиологии

и

Центр нейроэкономики и когнитивных исследований 

приглашают Вас на лекции

Киммо Алхо (Финляндия)

Лекции состоятся 18 и 19 апреля в департаменте психологии НИУ ВШЭ на английском языке.

Профессор Киммо Алхо – автор более чем 150 научных статей в международных рецензируемых журналах. Его исследования выполнены с помощью ЭЭГ/ВП, МЭГ, ПЭТ и фМРТ, и посвящены слуховому восприятию, восприятию речи, слуховой памяти, слуховому и зрительному вниманию – на здоровых взрослых испытуемых, на новорожденных, детях и подростках, на детях и взрослых с неврологическими заболеваниями, а также на слепых.

С избранными публикациями К.Алхо по теме лекций можно познакомиться, пройдя по этой ссылке: https://drive.google.com/open?id=0BxD_aK_I0E0VcC1kQXBoQTVQaGM

.

Kimmo Alho

Institute of Behavioural Sciences, University of Helsinki

Advanced Magnetic Imaging Centre, Aalto Neuroimaging, Aalto University

«Brain activity and dual tasking»

Дата:     19.04.2016
Время:       16.00
Адрес:  Волгоградский проспект, 46Б
Аудитория:     106

In our functional magnetic resonance imaging (fMRI) studies (Salo et al., 2013, 2015), healthy adult participants were presented with concurrent streams of spoken syllables and written letters and they performed various tasks involving the syllables or letters, or both. Selective attention to the syllables and letters was associated with activity modulations in the auditory and visual cortices, respectively. Additional activations were observed predominantly in the frontal and parietal areas for the auditory and visual tasks, respectively. For several auditory-visual dual-task combinations, division of attention between the syllables and letters was associated with left prefrontal activity enhancements presumably associated with integrating dual-task performance. Moreover, attenuated responses were observed in the auditory cortex during dual tasking (divided attention) in relation to single tasking (selective attention) perhaps due to the fact that during dual tasking, less attention was paid to the auditory inputs (cf. Alho et al., 1989).  In our further study (Moisala et al., 2015), participants were presented with concurrent spoken and written sentences and they were to selectively attend to either sentence or to attend to both of them. Dual tasking involving spoken and written sentences was associated with bilateral activity enhancements in the prefrontal areas. These areas showed smaller activity enhancements during selective attention to speech and written text at the presence of task-irrelevant written text and speech, respectively, suggesting that dealing with distracting information involves same brain areas as active dual tasking. In our subsequent study applying the same experimental paradigm (Moisala et al., submitted), we found in healthy adolescents and young adults (N=149) more right prefrontal activity and less accurate performance during attention to speech or reading at the presence of irrelevant text or speech/music, respectively, the more the participants dual-tasked in their daily life according to their own report.Moreover, frequent dual-tasking in everyday situations did not predict better performance in our dual-tasking experiment. These results suggest that habitual multitasking does not develop attentional skills but rather lead to enhanced distractibility and effort in conditions demanding attention.

Literature

Alho, K., Sams, M., Paavilainen, P., Reinikainen, K. & Näätänen, R. Event‑related brain potentials reflecting processing of relevant and irrelevant stimuli during selective listening. Psychophysiology, 1989, 26, 514-528.

Moisala, M., Salmela, V., Salo, E., Carlson, S., Vuontela, V., Salonen, O. & Alho, K. Brain activity during divided and selective attention to auditory and visual sentence comprehension tasks. Frontiers in Human Neuroscience, 2015, 9, 86.

Salo, E. A., Rinne, T., Salonen, O. & Alho, K. Brain activity during auditory and visual phonological, spatial and simple discrimination tasks. Brain Research, 2013, 1496, 55–69.

Salo, E., Rinne, T., Salonen, O. & Alho, K. Brain activations during bimodal dual tasks depend on the nature and combination of component tasks. Frontiers in Human Neuroscience, 2015, 9, 102.

Место проведения лекций: г. Москва, Волгоградский пр-т, д. 46 б.

Проезд: м. Текстильщики, выход из посл. вагона от центра, в туннеле держаться правой стороны, далее 10 мин. пешком по ул. Шоссейная, см. схему https://social.hse.ru/psy/kontakty

Для посещения лекций требуется предварительная регистрация (ФИО полностью, место работы/учебы) по электронной почте cognpp.hse@gmail.com

Для входа в здание необходимо иметь при себе паспорт.