Visualizing Brain Information Processing via Multi-Modal Integration
نویسندگان
چکیده
脳の複雑で柔軟な情報処理の仕組みを理解するためには，処理を担う脳部位を特定するだけでなく，脳部位間のダイナミックな情報のやり取りを解明することが必要不可欠です．しかし，ヒトを対象にした脳研究では，現在の脳計測法の限界から，このようなダイナミックな脳情報の可視化は困難です．我々の研究室では，複数のデータをソフトウェア的に統合して，一つの計測では達成できない脳情報の可視化を目指した研究開発を15 年以上進めてきました．本稿では，空間解像度に優れたfMRI データと時間解像度に優れた脳波・脳磁図を組み合わせて，高い時間・空間解像度での脳情報の可視化を目指す電流源推定法とその応用技術である電流信号伝達マッピング法について紹介します．
منابع مشابه
Information Theoretic Multi-modal Signal Processing
We present an information theoretic approach to multi-modal signal processing, and validate the framework with illustrative examples from medical image processing and multi-media signal processing. The approach tries to adaptively identify that pair of feature space representations of a pair of multi-modal signals which carries maximal redundancy. Analogously, we can say that the framework extr...
متن کاملFlavor processing: perceptual and cognitive factors in multi-modal integration.
The chemical senses may represent the most fundamental integrative sensory modalities. For example, flavor perception is widely considered to be an integrative process whereby two distinct neural systems (olfactory and gustatory) are activated peripherally to give rise to a unitary oral sensation of flavor. Benefits of multimodal sensory integration in other modalities include increased sensiti...
متن کاملFrom error probability to information theoretic (multi-modal) signal processing
We propose an information theoretic model that unifies a wide range of existing information theoretic signal processing algorithms in a compact mathematical framework. It is mainly based on stochastic processes, Markov chains and error probabilities. The proposed framework will allow us to discuss revealing analogies and differences between several well-known algorithms and to propose interesti...
متن کاملMulti-modal Integration for Gesture and Speech
Demonstratives, in particular gestures that “only” accompany speech, are not a big issue in current theories of grammar. If we deal with gestures, fixing their function is one big problem, the other one is how to integrate the representations originating from different channels and, ultimately, how to determine their composite meanings. The growing interest in multi-modal settings, computer sim...
متن کاملCross-modal information integration in category learning.
An influential theoretical perspective describes an implicit category-learning system that associates regions of perceptual space with response outputs by integrating information preattentionally and predecisionally across multiple stimulus dimensions. In this study, we tested whether this kind of implicit, information-integration category learning is possible across stimulus dimensions lying i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: B-plus
سال: 2023
ISSN: ['1881-9567', '1882-6172', '2186-0661', '1884-4863']
DOI: https://doi.org/10.1587/bplus.16.326