نتایج جستجو برای: رابط مغز رایانه bci

تعداد نتایج: 18012  

2012
Muhammad Siddiq Sheikh Kashif Raffat Farhan Shafiq

Brain Computer Interface (BCI) enable paralyze peoples to interact and control their environment by defining the direct communication between human feelings (brain) and technological aspects (external device). The feature extraction and translation of commands in BCI are the critical tasks, which are the key of BCI system. Using the semantic method will enhance the both of these features. Nowad...

2008
Anton Nijholt Jan B.F. van Erp Dirk Heylen

In this position paper we describe part of the Dutch BrainGain research project on Brain Computer Interfacing (BCI) and our planned research in this project. We focus on BCI research for healthy users. In the BrainGain project our task is to look at Human Factors aspects of BCI applications, to look at multimodal interactions that include BCI interactions, and to design games, game environments...

2009
Minjin Ko Kyoungwoo Bae Gyuhwan Oh Taiyoung Ryu

Brain-Computer Interface (BCI) is a way to control computers by using human brain waves. As the technology has improved, BCI devices have become smaller and cheaper, making it possible for more individuals to buy them. This allows BCI to be applied to new fields outside of pure research, including entertainment. We examine whether BCI devices can be used as a new gaming device, approaching it f...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم تربیتی و روانشناسی 1391

چکیده مقدمه/زمینه: برخی امتیازهای محیط رایانه‏ای در فراهم نمودن امکان تعامل، ارائه منابع اطلاعاتی و تسهیل ارتباط علمی، سبب شده پژوهشگران زمان زیادی را به استفاده از این محیط اختصاص ‏دهند. همچنین، برپایه نظریه‏ تجربه خوشایند، غنی بودن محیط تعاملی رابط کاربر، تجربه خوشایندی به کاربر می‏دهد که وی را به مراجعه بعدی و استفاده بیشتر از منابع اطلاعاتی سوق می‏دهد. با وجود این، مشخص نیست که "آیا تعامل ...

Journal: :NeuroImage 2010
Benjamin Blankertz Claudia Sannelli Sebastian Halder Eva M. Hammer Andrea Kübler Klaus-Robert Müller Gabriel Curio Thorsten Dickhaus

Brain-computer interfaces (BCIs) allow a user to control a computer application by brain activity as measured, e.g., by electroencephalography (EEG). After about 30years of BCI research, the success of control that is achieved by means of a BCI system still greatly varies between subjects. For about 20% of potential users the obtained accuracy does not reach the level criterion, meaning that BC...

Journal: :Journal of neural engineering 2013
Peng Yuan Xiaorong Gao Brendan Allison Yijun Wang Guangyu Bin Shangkai Gao

OBJECTIVE Today, the brain-computer interface (BCI) community lacks a standard method to evaluate an online BCI's performance. Even the most commonly used metric, the information transfer rate (ITR), is often reported differently, even incorrectly, in many papers, which is not conducive to BCI research. This paper aims to point out many of the existing problems and give some suggestions and met...

2013
Sonja C. Kleih Andrea Kübler

Motivation moderately influences brain-computer interface (BCI) performance in healthy subjects when monetary reward is used to manipulate extrinsic motivation. However, the motivation of severely paralyzed patients, who are potentially in need for BCI, could mainly be internal and thus, an intrinsic motivator may be more powerful. Also healthy subjects who participate in BCI studies could be i...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی (نوشیروانی) بابل - دانشکده مهندسی برق و کامپیوتر 1392

سامانه نگارش مجازی با استفاده از تنفس برای فراهم کردن امکان ارتباط با رایانه برای ناتوانان حرکتی طراحی و ساخته شده است. این ابزار با تشخیص فشار ناشی از دَم و بازدم کاربر بوسیله یک بُرد الکتریکی و تبدیل آن به مقادیر قابل تعبیر برای رایانه امکان انتخاب یک مختصات مکانی از روی یک رابط گرافیکی در صفحه نمایش رایانه را فراهم می کند. رابط گرافیکی یک صفحه کلید مجازی است که به کاربر کمک می کند تا حروف مورد...

Journal: :Reports on Mathematical Logic 2008
Wojciech Buszkowski

We use a syntactic interpretation of MALL in BCI with ∧, defined in [5], to prove the undecidability of the consequence relations for BCI with ∧ and BCI with ∨, and the NP-completeness of BCI. Similar results are obtained for a variant of the Lambek calculus.

2009
Siamac Fazli Cristian Grozea Márton Danóczy Benjamin Blankertz Florin Popescu Klaus-Robert Müller

In the quest to make Brain Computer Interfacing (BCI) more usable, dry electrodes have emerged that get rid of the initial 30 minutes required for placing an electrode cap. Another time consuming step is the required individualized adaptation to the BCI user, which involves another 30 minutes calibration for assessing a subject’s brain signature. In this paper we aim to also remove this calibra...

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