An fNIRS investigation of associative recognition in the prefrontal cortex with a rapid event-related design

Schaeffer, James D.; Yennu, Amarnath; Gandy, Kellen; Tian, Fenghua; Liu, Hanli; Park, Heekyeong

doi:10.1016/j.jneumeth.2014.07.011

Cited by 38 publications

(15 citation statements)

References 46 publications

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“…fNIRS has been recently employed to investigate various aspects of memory such as encoding and retrieval of story 31 , episodic encoding and retrieval of taste 32 and the effect of music on verbal memory encoding 33 . However, to our knowledge, brain activation in prefrontal cortex during paired associate learning has been investigated only by one research group using word pairs 19 . In the present study, we used an fNIRS system for monitoring a wider brain area i.e.…”

Section: Introductionmentioning

confidence: 99%

fNIRS can robustly measure brain activity during memory encoding and retrieval in healthy subjects

Jahani

Fantana

Harper

et al. 2017

Sci Rep

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Early intervention in Alzheimer’s Disease (AD) requires novel biomarkers that can capture changes in brain activity at an early stage. Current AD biomarkers are expensive and/or invasive and therefore unsuitable for use as screening tools, but a non-invasive, inexpensive, easily accessible screening method could be useful in both clinical and research settings. Prior studies suggest that especially paired-associate learning tasks may be useful in detecting the earliest memory impairment in AD. Here, we investigated the utility of functional Near Infrared Spectroscopy in measuring brain activity from prefrontal, parietal and temporal cortices of healthy adults (n = 19) during memory encoding and retrieval under a face-name paired-associate learning task. Our findings demonstrate that encoding of novel face-name pairs compared to baseline as well as compared to repeated face-name pairs resulted in significant activation in left dorsolateral prefrontal cortex while recalling resulted in activation in dorsolateral prefrontal cortex bilaterally. Moreover, brain response to recalling was significantly higher than encoding in medial, superior and middle frontal cortices for novel faces. Overall, this study shows that fNIRS can reliably measure cortical brain activation during a face-name paired-associate learning task. Future work will include similar measurements in populations with progressing memory deficits.

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Section: Introductionmentioning

confidence: 99%

fNIRS can robustly measure brain activity during memory encoding and retrieval in healthy subjects

Jahani

Fantana

Harper

et al. 2017

Sci Rep

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“…Another study also utilized a rapid event-related design with~4 s SOA to compare fNIRS findings with fMRI findings in complex item-item associative recognition (Schaeffer et al, 2014). The latter study adopted a flexible post hoc response sorting due to the event-related design, without full temporal recovery of the hemodynamic signal.…”

Section: Concurrent Fnirs-eeg Based On a Fast Eventrelated Protocolmentioning

confidence: 99%

“…The latter study adopted a flexible post hoc response sorting due to the event-related design, without full temporal recovery of the hemodynamic signal. Another study also utilized a rapid event-related design with~4 s SOA to compare fNIRS findings with fMRI findings in complex item-item associative recognition (Schaeffer et al, 2014). In the current study, we have a more complex (covert spatial attention shift and the following target selection) fast event-related protocol with SOA of~1.4-1.8 s. In that aspect, this study may be marked as the first concurrent fNIRS-EEG study that used a fast event-related protocol (with short SOA and ITI)…”

Section: Concurrent Fnirs-eeg Based On a Fast Eventrelated Protocolmentioning

confidence: 99%

“…The simultaneous recording of EEG and fMRI (or functional near infrared spectroscopy, fNIRS) opens avenues to address the gap between hemodynamic activities at higher spatial resolution and EEG at a higher temporal resolution (Huang et al, 2015;Laufs et al, 2003;Moosmann et al, 2003;Scheeringa et al, 2011). Recently, with the use of the general linear model (GLM) for fNIRS data analysis, event-related designs have been incorporated in fNIRS studies (Ferrari & Quaresima, 2012;Plichta et al, 2006;Schaeffer et al, 2014). Therefore, concurrent fNIRS-EEG recording could potentially provide a detailed picture of the relationship between the cortical hemodynamics and the electrophysiological activity.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, there is an important issue in the concurrent fNIRS-EEG recording study: the ERP studies adopted rapid event-related design, while blocked experimental designs and protocols have been commonly utilized in most fNIRS studies to investigate cerebrovascular functions in response to different kinds of stimuli and conditions. Recently, with the use of the general linear model (GLM) for fNIRS data analysis, event-related designs have been incorporated in fNIRS studies (Ferrari & Quaresima, 2012;Plichta et al, 2006;Schaeffer et al, 2014). However, to our knowledge, none of the currently published studies have used the simultaneous recording of EEG and fNIRS based on the rapid event-related design.…”

Section: Introductionmentioning

confidence: 99%

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In covert visual attention, one fundamental question is how advance knowledge facilitates subsequent neural processing and behavioral performance. In this study, with a rapid event‐related simultaneous electroencephalography (EEG) and functional near infrared spectroscopy recording in humans, we explored the potential contribution of anticipatory electrophysiological activation and hemodynamic activation by examining how anticipatory low‐frequency oscillations and changes in oxygenated hemoglobin (HbO) concentration influence the subsequent event‐related potential (ERP) marker of attentional selection. We found that expecting a target led to both a posterior lateralization of alpha‐band (8–12 Hz) oscillation power and a lateralization of HbO response over the visual cortex. Importantly, the magnitude of cue‐induced alpha lateralization was positively correlated with the nearby HbO lateralization in the visual cortex, and such a cue‐induced alpha lateralization predicted the subsequent target‐evoked N2pc amplitudes assumed to reflect attentional selection. Our results suggest that each individual's attentional selection biomarker as reflected by N2pc is predictable in advance via the anticipation‐induced alpha lateralization, and such cue‐induced alpha lateralization seems to play an important role in the functional coupling effects between the low‐frequency EEG and the nearby hemodynamic activation.

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An fNIRS investigation of associative recognition in the prefrontal cortex with a rapid event-related design

Cited by 38 publications

References 46 publications

fNIRS can robustly measure brain activity during memory encoding and retrieval in healthy subjects

fNIRS can robustly measure brain activity during memory encoding and retrieval in healthy subjects

Anticipatory alpha oscillation predicts attentional selection and hemodynamic response

AI Object Detection, Holographic Hybrid Reality and Haemodynamic Response to Construction Site Safety Risks

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