A review of theta oscillation and its functional correlates

Karakaş, Sirel

doi:10.1016/j.ijpsycho.2020.04.008

Cited by 107 publications

(64 citation statements)

References 221 publications

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“…The power changes we observed were, as predicted, specific to theta, aligning with the long association between theta and hippocampal function (reviewed in Karakaş, 2020;Colgin, 2016) and the previous MEG study of immediate full scene construction of Barry, Barnes, et al (2019). Our findings of significantly greater attenuation in theta power for the first (anterior hippocampus, vmPFC) and second (vmPFC) stages of scene relative to array Figure 4.…”

Section: Discussionsupporting

confidence: 89%

“…Moreover, our main interest was in theta. There is a long history linking theta with hippocampal function particularly from rodent studies (reviewed in Karakaş, 2020;Colgin, 2016). Our focus on theta reflects not only this context but also the previous MEG study associating theta with immediate scene construction (Barry, Barnes, et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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The Role of Hippocampal–Ventromedial Prefrontal Cortex Neural Dynamics in Building Mental Representations

Monk

Dalton

Barnes

et al. 2021

Journal of Cognitive Neuroscience

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The hippocampus and ventromedial prefrontal cortex (vmPFC) play key roles in numerous cognitive domains including mind-wandering, episodic memory, and imagining the future. Perspectives differ on precisely how they support these diverse functions, but there is general agreement that it involves constructing representations composed of numerous elements. Visual scenes have been deployed extensively in cognitive neuroscience because they are paradigmatic multielement stimuli. However, it remains unclear whether scenes, rather than other types of multifeature stimuli, preferentially engage hippocampus and vmPFC. Here, we leveraged the high temporal resolution of magnetoencephalography to test participants as they gradually built scene imagery from three successive auditorily presented object descriptions and an imagined 3-D space. This was contrasted with constructing mental images of nonscene arrays that were composed of three objects and an imagined 2-D space. The scene and array stimuli were, therefore, highly matched, and this paradigm permitted a closer examination of step-by-step mental construction than has been undertaken previously. We observed modulation of theta power in our two regions of interest—anterior hippocampus during the initial stage and vmPFC during the first two stages, of scene relative to array construction. Moreover, the scene-specific anterior hippocampal activity during the first construction stage was driven by the vmPFC, with mutual entrainment between the two brain regions thereafter. These findings suggest that hippocampal and vmPFC neural activity is especially tuned to scene representations during the earliest stage of their formation, with implications for theories of how these brain areas enable cognitive functions such as episodic memory.

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

The Role of Hippocampal–Ventromedial Prefrontal Cortex Neural Dynamics in Building Mental Representations

Monk

Dalton

Barnes

et al. 2021

Journal of Cognitive Neuroscience

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“…Deeper understanding may result from new information being deeply connected to many memories by attentional function [21][22][23] . Working memory training also improves reading comprehension 24 .…”

Section: Discussionmentioning

confidence: 99%

Reading on smartphone causes sigh inhibition with brain overactivity and comprehension decline

Honma

Masaoka

Iizuka

et al. 2021

Preprint

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Electronic devices have become an indispensable part of our lives, while negative aspects have been reported. One downside is that reading comprehension is reduced when reading from electronic device, but the cause of this is unclear. In this study, we investigated a cause for the decline in comprehension by simultaneously measuring respiration and brain activity during reading from a smartphone medium, on thirty-four healthy individuals. Here we found that, compared to a paper medium, reading from the smartphone elicits a suppression of sigh, brain overactivity in prefrontal cortex, and decline in reading comprehension. Furthermore, a path analysis suggests that interactive relationship between sigh inhibition and overactivity in prefrontal cortex causes the comprehension decline. These findings provide new insight into a respiration-mediated mechanism of cognitive function.

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“…Prolonged theta in right posterior electrodes is accompanied by significant differences in mean (low) theta phase between accurate and guess trials. Theta has been interpreted as being correlated with selective attentional processing (Başar et al, 2001;Karakaş, 2020;Karakaş et al, 2000) and an increase in theta synchronization and . CC-BY 4.0 International license available under a (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity.…”

Section: Accurate Vs Guess Trials: Eeg Oscillatory Activitymentioning

confidence: 99%

To See, Not to See, or to See Poorly: Perceptual Quality and Guess Rate as a Function of Electroencephalography (EEG) Brain Activity in an Orientation Perception Task

Sheldon

Mathewson

2020

Preprint

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Brain oscillations are known to modulate detection of visual stimuli, but it is unclear if this is due to increased guess rate or decreased precision of the mental representation. Here we estimated quality and guess rate as a function of electroencephalography (EEG) brain activity using an orientation perception task. Errors on each trial were quantified as the difference between the target orientation and the orientation reported by participants with a response stimulus. Response errors were fitted to standard mixed model by Zhang and Luck (2008) to quantify how participants’ guess rate and standard deviation parameters varied as a function of brain activity. Twenty-four participants were included in the analysis.Within subjects, the power and phase of delta and theta post-target oscillatory activity were found to vary along with performance on the orientation perception task in that greater power and phase coherence in the 2-5 Hz band range was measured in trials with more accurate responses. In addition, the phase of delta and theta correlated with the degree of response error while oscillatory power did not have a relationship with trial-by-trial response errors. Analysis of task-related alpha activity yielded no significant results implying that alpha oscillations do not play an important role in orientation perception at single trial level. Across participants, only the standard deviation parameter correlated with oscillatory power in the high alpha and low beta frequency ranges. These results indicate that post-target power is associated with the precision of mental representations rather than the guess rate, both across trials within subjects and across subjects.

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A review of theta oscillation and its functional correlates

Cited by 107 publications

References 221 publications

The Role of Hippocampal–Ventromedial Prefrontal Cortex Neural Dynamics in Building Mental Representations

The Role of Hippocampal–Ventromedial Prefrontal Cortex Neural Dynamics in Building Mental Representations

Reading on smartphone causes sigh inhibition with brain overactivity and comprehension decline

To See, Not to See, or to See Poorly: Perceptual Quality and Guess Rate as a Function of Electroencephalography (EEG) Brain Activity in an Orientation Perception Task

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