scholarly journals Pre-Frontal Cortex Activity of Male Drivers in the Presence of Passengers During Simulated Driving: An Exploratory Functional Near- Infrared Spectroscopy (fNIRS) Study

2015 ◽  
Author(s):  
Anuj K Pradhan ◽  
Xiao-Su Frank Hu ◽  
Lisa Buckley ◽  
C Raymond Bingham
Keyword(s):  
Infrared Spectroscopy ◽  
Frontal Cortex ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Functional Near Infrared Spectroscopy ◽  
Simulated Driving

Frontal  activation  patterns  during  Tetris game  play  and  differences  between  high  and  low performers:  a preliminary functional  near-infrared  spectroscopy study

2019 ◽  
Author(s):  
Takayuki Nakahachi ◽  
Ryouhei Ishii ◽  
Leonides Canuet ◽  
Iori Sato ◽  
Kiyoko Kamibeppu ◽  
...  
Keyword(s):  
Prefrontal Cortex ◽  
Infrared Spectroscopy ◽  
Frontal Cortex ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Cortical Activation ◽  
The Other ◽  
Functional Near Infrared Spectroscopy ◽  
Activation Patterns ◽  
The Right

Abstract Background: Tetris has recently expanded its place of activity not only to the original entertainment but also to clinical applications such as prevention of trauma flashback. However, to our knowledge, no studies focused on the cortical activation patterns themselves when playing Tetris in a natural form. This study aimed to investigate the activation patterns in the frontal cortex during naturally-performed Tetris for 90 seconds in 24 healthy subjects using functional near-infrared spectroscopy robust to artifacts by motion and electric devices. We also calculated the correlations of behavioral data with cortical activations, and compared the differences in activations between the high and low performers of Tetris. Results: The results demonstrated that significant activations in the frontal cortex during Tetris play had two factors, each showing a similar activation pattern. One of the factors was distributed over the lateral prefrontal cortex bilaterally, and the other was localized to the right prefrontal cortex. Moreover, in the high performers, the activations of the areas centered on the right dorsolateral prefrontal cortex (DLPFC) were estimated to increase and correlations of the activations between those areas and the other areas decrease compared with the low performers. Conclusions: It is suggested that high Tetris performers might reduce functional connectivity between activations of the areas centered on the right DLPFC and the other areas, and increase the local activations compared with low performers. It would be necessary to consider whether its visuospatial cognitive loads stimulate the appropriate areas of the subject’s brain to effectively utilize Tetris play for clinical interventions.

scholarly journals Cerebral haemodynamics during simulated driving: Changes in workload are detectable with functional near infrared spectroscopy

PLoS ONE ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. e0248533
Author(s):  
Peter M. Bloomfield ◽  
Hayden Green ◽  
Nicholas Gant
Keyword(s):  
Prefrontal Cortex ◽  
Infrared Spectroscopy ◽  
Blood Volume ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Cerebral Blood Volume ◽  
Cortical Activity ◽  
Medial Aspect ◽  
Functional Near Infrared Spectroscopy ◽  
Simulated Driving

Motor vehicle operation is a complicated task and substantial cognitive resources are required for safe driving. Experimental paradigms examining cognitive workload using driving simulators often introduce secondary tasks, such as mathematical exercises, or utilise simulated in-vehicle information systems. The effects of manipulating the demands of the primary driving task have not been examined in detail using advanced neuroimaging techniques. This study used a manipulation of the simulated driving environment to test the impact of increased driving complexity on brain activity. Fifteen participants drove in two scenarios reflecting common driving environments differing in the amount of vehicular traffic, frequency of intersections, number of buildings, and speed limit restrictions. Functional near infrared spectroscopy was used to quantify changes in cortical activity; fifty-five optodes were placed over the prefrontal and occipital cortices, commonly assessed areas during driving. Compared to baseline, both scenarios increased oxyhaemoglobin in the bilateral prefrontal cortex and cerebral blood volume in the right prefrontal cortex (all p ≤ 0.05). Deoxyhaemoglobin decreased at the bilateral aspects of the prefrontal cortex but overall tended to increase in the medial aspect during both scenarios (both p ≤ 0.05). Cerebral oxygen exchange significantly declined at the lateral aspects of the prefrontal cortex, with a small but significant increase seen in the medial aspect (both p < 0.05). There were no significant differences for oxyhaemoglobin, deoxyhaemoglobin, or cerebral blood volume (all p > 0.05). This study demonstrates that functional near infrared spectroscopy is capable of detecting changes in cortical activity elicited by simulated driving tasks but may be less sensitive to variations in driving workload aggregated over a longer duration.

scholarly journals Is consumer neural response to visual merchandising types different depending on their fashion involvement?

PLoS ONE ◽  
2020 ◽  
Vol 15 (12) ◽  
pp. e0241578
Author(s):  
Hyoung-Sukh Kim ◽  
Jin-Hwa Lee ◽  
So-Hyeon Yoo
Keyword(s):  
Infrared Spectroscopy ◽  
Frontal Cortex ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Neural Response ◽  
Marketing Strategies ◽  
Orbital Frontal Cortex ◽  
Functional Near Infrared Spectroscopy ◽  
Visual Merchandising ◽  
The Brain

This study investigated consumers' responses to fashion visual merchandising (VM) from a neuroscientific perspective. The brain activations of 20 subjects differently involved in fashion were recorded using functional near-infrared spectroscopy in response to three different fashion VM types. According to the types of fashion VM, significant differences were observed, which were significantly higher for the creative VM. Moreover, highly fashion-involved subjects showed activation of the orbital frontal cortex region in response to the creative VM. Based on these results, it is suggested that marketing strategies should be devised explicitly for the brand's targeted audience and goals.

scholarly journals Acute Mobile Phones Exposure Affects Frontal Cortex Hemodynamics as Evidenced by Functional Near-Infrared Spectroscopy

2009 ◽  
Vol 29 (5) ◽  
pp. 903-910 ◽  
Author(s):  
Giuseppe Curcio ◽  
Michele Ferrara ◽  
Tania Limongi ◽  
Daniela Tempesta ◽  
Gabriele Di Sante ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Frontal Cortex ◽  
Near Infrared Spectroscopy ◽  
Mobile Communications ◽  
Near Infrared ◽  
Linear Increase ◽  
Cortical Activation ◽  
Exposure Condition ◽  
Functional Near Infrared Spectroscopy ◽  
Double Blind

This study aimed to evaluate by functional near-infrared spectroscopy (fNIRS), the effects induced by an acute exposure (40 mins) to a GSM (Global System for Mobile Communications) signal emitted by a mobile phone (MP) on the oxygenation of the frontal cortex. Eleven healthy volunteers underwent two sessions (Real and Sham exposure) after a crossover, randomized, double-blind paradigm. The whole procedure lasted 60 mins: 10-mins baseline (Bsl), 40-mins (Exposure), and 10-mins recovery (Post-Exp). Together with frontal hemodynamics, heart rate, objective and subjective vigilance, and self-evaluation of subjective symptoms were also assessed. The fNIRS results showed a slight influence of the GSM signal on frontal cortex, with a linear increase in [HHb] as a function of time in the Real exposure condition (F4,40 = 2.67; P = 0.04). No other measure showed any GSM exposure-dependent changes. These results suggest that fNIRS is a convenient tool for safely and noninvasively investigating the cortical activation in MP exposure experimental settings. Given the short-term effects observed in this study, the results should be confirmed on a larger sample size and using a multichannel instrument that allows the investigation of a wider portion of the frontal cortex.

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