舒华老师课题组邀请了芬兰于韦斯屈莱大学心理系的Paavo H.T. Leppänen 和Piia Astikainen 两位教授到实验室做学术报告，欢迎感兴趣的老师和同学参加。以下为报告信息：
时间：7月30日（周四），9:30 AM
地点：英东楼422
报告人一：Dr. Paavo H.T. Leppänen, Professor of psychology and dyslexia research at the Department of Psychology at University of Jyväskylä (JYU), Finland
报告题目：Neurobiology and early indices of language related disorders
报告摘要：My talk “Neurobiology and early indices of language related disorders” deal with neural basis and brain event-related potential (ERP) indices of specific language impairment (SLI) and developmental reading difficulty (dyslexia). The talk will briefly present a theoretical framework for these disorders, including neural networks for language and reading as well as familial and genetic basis of language disorders. Examples of profiles of neurocognitive atypicalities in SLI and dyslexia are presented, including speech and phonology related functional neurocognitive atypicalities in dyslexia. Finally observations from Jyväskylä Longitudinal Study of Dyslexia (JLD) are presented and discussed from a multiple deficit perspective on risk factors for learning disorders.
报告人简介：Paavo H.T. Leppänen, PhD, is Professor of psychology and dyslexia research at the Department of Psychology at University of Jyväskylä (JYU), the head of the human brain research laboratories of Department of Psychology, and the chair of the executive team of Research Forum of Learning Difficulties (ForLearning, JYU). He has long experience with brain research using event-related potential (ERP) and behavioral research methods with infant, child and adult populations. He currently conducts and directs research in the field of developmental cognitive neuroscience. His research themes include e- and online reading (with web-based, behavioral, eye-tracking and brain response measures), dyslexia, language difficulties, and problems in foreign/ second language learning, their risk factors and neurocognitive processes of reading.
https://www.jyu.fi/ytk/laitokset/psykologia/henkilokunta/leppanen_p
报告人二：Dr. Piia Astikainen, Senior researcher and group leader in Department of Psychology, University of Jyvaskyla, Finland
报告题目：Measuring auditory cognitive functions with electrophysiological methods in rodents
报告摘要：In her talk she will present the results of their recent results on auditory cognitive functions in rats. They have investigated auditory abilities of different levels of cognitive complexity, from change detection in simple sound features such as frequency to receptive speech -related higher-order cognitive functions. In this work, a the mismatch response (MMR), an animal analogy of mismatch negativity (MMN), is utilized. MMR is automatically elicited in the brain when any discriminable change occurs in auditory stimulation (Näätänen et al., 2010). They have found that rare changes in sinusoidal sound frequency (Astikainen et al., 2011) as well as changes in speech sounds (Ahmed et al., 2011) are detected in the rat brain based on a short-term (transient) memory representation of the repeated sounds. Rats are also able to represent sounds as feature combinations (Ruusuvirta et al., 2007; Astikainen et al., 2014b), and they detect changes in abstract grammar-like rules from speech sound patterns (Astikainen et al., 2014ba).
References:
Ahmed, M., Mällo, T., Leppänen, P., Hämäläinen, J., Äyräväinen, L., Ruusuvirta, T. & Astikainen, P. (2011). Mismatch brain response to speech sound changes in rats. Frontiers in Psychology, 2 (283).
Astikainen, P., Mällo, T., Ruusuvirta, T. & Näätänen, R. (2014a). Electrophysiological evidence for change detection in speech sound patterns by anesthetized rats. Frontiers in Auditory Cognitive Neuroscience, 8:374. doi: 10.3389/fnins.2014.00374
Astikainen, P., Ruusuvirta, T. & Näätänen, R. (2014b). Rapid categorization of sound objects in anesthetized rats as indexed by the electrophysiological mismatch response. Psychophysiology, 51, 1195–1199. DOI: 10.1111/psyp.12284
Astikainen, P., Stefanics, G., Nokia, M., Lipponen, A., Cong, F., Penttonen, M. & Ruusuvirta, T. (2011). Memory-based mismatch response to frequency changes in rats. PLoS ONE, 6 (9).
Näätänen, R., Astikainen, P., Ruusuvirta, T. & Huotilainen, M. (2010). Automatic auditory intelligence: An expression of the sensory-cognitive core of cognitive processes. Brain Research Reviews, 64 (1), 123-136.
Ruusuvirta, T., Koivisto, K., Wikgren, J. & Astikainen, P. (2007). Processing of melodic contours in urethane-anaesthetized rats. European Journal of Neuroscience, 26 (3), 701-703.
报告人简介：Dr. Piia Astikainen is a senior researcher and group leader in Department of Psychology, University of Jyvaskyla, Finland. She earned her PhD 2004, and has since then studied sensory-cognitive functions with electrophysiological methods. Her current work utilizes human event-related potentials (ERPs) and intracranial local-field potential recordings to elucidate human-animal similarities in the sensory-cognitive processing, and unravel the neural mechanisms of perceptual learning.