Phrase frequency analysis on fNIRS hyperscanning with Stork Big Analysis

1 min read

In the previous blog, we have used Stork’s big analysis to analyze the literature of fNIRS. At that time, Stork only analyzed the frequency of a single word (number indicates the number of occurences):

near-infrared (1945)
spectroscopy (1868)
cerebral (1850)
brain (1322)
oxygenation (801)
functional (775)
imaging (558)
prefrontal (541)
infrared (498)
cortex (469)
oxygen (467)
blood (413)
monitoring (402)
activation (391)
optical (367)
fnirs (364)
patients (364)
activity (342)

Some of the words, such as spectroscopy, brain, functional, imaging etc, are not very meaningful by itself. Maybe they are part of phrases which carry more information than a single word does.

Today, Stork Big Analysis has updated and now it can analyze frequency of phrases with 2, 3, and 4 words. Below is the result with the same keywords (fnirs OR nirs OR "near infrared") brain:

Top phrase (2 words):

cerebral oxygenation (362)
infrared spectroscopy (344)
prefrontal cortex (262)
oxygen saturation (243)
cerebral blood (218)
cerebral oxygen (201)
blood flow (184)
brain injury (128)
preterm infants (127)
cerebral hemodynamics (102)
cerebral oximetry (98)
regional cerebral (96)
tissue oxygenation (95)
brain activity (90)
working memory (85)

Top phrase (3 words):

cerebral blood flow (134)
cerebral oxygen saturation (129)
traumatic brain injury (71)
cerebral blood volume (57)
regional cerebral oxygen (53)
verbal fluency task (43)
prefrontal cortex activity (38)
cerebral tissue oxygenation (37)
tissue oxygen saturation (36)
prefrontal cortex activation (35)
magnetic resonance imaging (32)
diffuse optical tomography (31)
transcranial magnetic stimulation (30)
positron emission tomography (26)
cerebral tissue oxygen (25)
hypothermic circulatory arrest (23)
transcranial direct current (22)

Top phrase (4 words):

regional cerebral oxygen saturation (52)
cerebral tissue oxygen saturation (24)
transcranial direct current stimulation (21)
deep hypothermic circulatory arrest (15)
functional magnetic resonance imaging (15)
cerebral tissue oxygenation index (12)
repetitive transcranial magnetic stimulation (12)
attention deficit hyperactivity disorder (11)
regional cerebral blood flow (9)
cerebral oxygen saturation measured (9)
cerebral blood flow velocity (8)
severe traumatic brain injury (8)
cerebral regional oxygen saturation (7)
cerebral oxygen saturation monitoring (7)
coronary artery bypass grafting (7)
red blood cell transfusion (6)
hypoplastic left heart syndrome (6)
cerebral blood flow autoregulation (6)
mild traumatic brain injury (5)
anodal transcranial direct current (5)
resting state functional connectivity (5)
mixed venous oxygen saturation (5)

We see some meaningful phrases show up. A single word such as “blood” now has a clearer meaning (e.g. “cerebral blood flow”). We also discovered a few top phrases which we can’t find with a single word analysis, such as “verbal fluency task”. This is a popular task used in fNIRS studies but I have not realized it is that popular! “Traumatic brain injury” is another example, showing the popular application of fNIRS in diagnose this condition.

More information about Big Analysis can be found at this page. (中文版)

第十一期 fNIRS Journal Club 通知 2020/8/29,10am

北京时间2020年8月29日周六上午10点, 深圳大学成晓君助理教授将为大家讲解她去年发表的一篇用近红外超扫描揭示人际协调的神经机制的文章。同时,她还会和大家介绍如何用Granger causality分析两个信号的因果关系。欢迎大家参加并参与讨论。 她要讲的文献如下: Cheng, Pan, Hu, Hu (2019) Coordination Elicits Synchronous Brain Activity Between Co-actors: Frequency Ratio Matters Frontiers in neuroscience 13() 1071 Abstract: People...
Xu Cui
48 sec read

第十期 fNIRS Journal Club 视频

在2020/7/25日, 北京航空航天大学的汪待发副教授讲解了他发表的一篇BCI文章。视频如下: Youtube:https://youtu.be/gAQQrmbWSOcYouku:https://v.youku.com/v_show/id_XNDc2OTAxNzkzMg==.html
Xu Cui
4 sec read

第十期 fNIRS Journal Club 通知 2020/7/25,10am

北京时间2020年7月25日周六上午10点,北京航空航天大学的汪待发副教授,博士生导师,将为大家讲解他们组去年发表的一篇脑机交互(BCI)的近红外文章。欢迎大家参加并参与讨论。 他要讲的文献如下:Y. Zheng,D. Zhang, L. Wang, Y. Wang, H. Deng, S. Zhang, D. Li, D. Wang, “Resting-State-Based Spatial Filtering for an fNIRS-Based Motor Imagery...
Xu Cui
1 min read

Leave a Reply

Your email address will not be published. Required fields are marked *