Vestibular Stimulation Modulates Neural Correlates of Own-body Mental Imagery

There is growing evidence that vestibular information is not only involved in reflexive eye movements and the control of posture but it also plays an important role in higher order cognitive processes. Previous behavioral research has shown that concomitant vestibular stimuli influence performance in tasks that involve imagined self-rotations. These results suggest that imagined and perceived body rotations share common mechanisms. However, the nature and specificity of these effects remain largely unknown. Here, we investigated the neural mechanisms underlying this vestibulocognitive interaction. Participants ( n = 20) solved an imagined self-rotation task during caloric vestibular stimulation. We found robust main effects of caloric vestibular stimulation in the core region of the vestibular network, including the rolandic operculum and insula bilaterally, and of the cognitive task in parietal and frontal regions. Interestingly, we found an interaction of stimulation and task in the left inferior parietal lobe, suggesting that this region represents the modulation of imagined body rotations by vestibular input. This result provides evidence that the inferior parietal lobe plays a crucial role in the neural integration of mental and physical body rotation.

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The disappearing hand: vestibular stimulation does not improve hand localisation

PeerJ ◽

10.7717/peerj.7201 ◽

2019 ◽

Vol 7 ◽

pp. e7201

Author(s):

Luzia Grabherr ◽

Leslie N. Russek ◽

Valeria Bellan ◽

Mohammad Shohag ◽

Danny Camfferman ◽

...

Keyword(s):

Sensory Information ◽

Vestibular Stimulation ◽

Subjective Data ◽

Coherent Integration ◽

Proprioceptive Input ◽

Caloric Vestibular Stimulation ◽

Somatosensory Information ◽

Vestibular Information ◽

Randomised Controlled ◽

Healthy Participants

Background Bodily self-consciousness depends on the coherent integration of sensory information. In addition to visual and somatosensory information processing, vestibular contributions have been proposed and investigated. Vestibular information seems especially important for self-location, but remains difficult to study. Methods This randomised controlled experiment used the MIRAGE multisensory illusion box to induce a conflict between the visually- and proprioceptively-encoded position of one hand. Over time, the perceived location of the hand slowly shifts, due to the fact that proprioceptive input is progressively weighted more heavily than the visual input. We hypothesised that left cold caloric vestibular stimulation (CVS) augments this shift in hand localisation. Results The results from 24 healthy participants do not support our hypothesis: CVS had no effect on the estimations with which the perceived position of the hand shifted from the visually- to the proprioceptively-encoded position. Participants were more likely to report that their hand was ‘no longer there’ after CVS. Taken together, neither the physical nor the subjective data provide evidence for vestibular enhanced self-location.

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Caloric vestibular stimulation in aphasic syndrome

Frontiers in Integrative Neuroscience ◽

10.3389/fnint.2013.00099 ◽

2013 ◽

Vol 7 ◽

Cited By ~ 6

Author(s):

David Wilkinson ◽

Rachael Morris ◽

William Milberg ◽

Mohamed Sakel

Keyword(s):

Vestibular Stimulation ◽

Caloric Vestibular Stimulation

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Brain hemodynamic response in Examiner–Examinee dyads during spatial short-term memory task: an fNIRS study

Experimental Brain Research ◽

10.1007/s00221-021-06073-0 ◽

2021 ◽

Author(s):

Francesco Panico ◽

Stefania De Marco ◽

Laura Sagliano ◽

Francesca D’Olimpio ◽

Dario Grossi ◽

...

Keyword(s):

Working Memory ◽

Cognitive Processes ◽

Short Term Memory ◽

Spatial Working Memory ◽

Brain Activity ◽

Memory Task ◽

Neural Correlates ◽

Short Term ◽

Term Memory ◽

The Real

AbstractThe Corsi Block-Tapping test (CBT) is a measure of spatial working memory (WM) in clinical practice, requiring an examinee to reproduce sequences of cubes tapped by an examiner. CBT implies complementary behaviors in the examiners and the examinees, as they have to attend a precise turn taking. Previous studies demonstrated that the Prefrontal Cortex (PFC) is activated during CBT, but scarce evidence is available on the neural correlates of CBT in the real setting. We assessed PFC activity in dyads of examiner–examinee participants while completing the real version of CBT, during conditions of increasing and exceeding workload. This procedure allowed to investigate whether brain activity in the dyads is coordinated. Results in the examinees showed that PFC activity was higher when the workload approached or reached participants’ spatial WM span, and lower during workload conditions that were largely below or above their span. Interestingly, findings in the examiners paralleled the ones in the examinees, as examiners’ brain activity increased and decreased in a similar way as the examinees’ one. In the examiners, higher left-hemisphere activity was observed suggesting the likely activation of non-spatial WM processes. Data support a bell-shaped relationship between cognitive load and brain activity, and provide original insights on the cognitive processes activated in the examiner during CBT.

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Effects of caloric vestibular stimulation on serotoninergic system in the media vestibular nuclei of guinea pigs

Chinese Medical Journal ◽

10.1097/00029330-200701020-00009 ◽

2007 ◽

Vol 120 (2) ◽

pp. 120-124 ◽

Cited By ~ 5

Author(s):

Fu-rong MA ◽

Jun-xiu LIU ◽

Xue-pei LI ◽

Jian-jun MAO ◽

Qun-dan ZHANG ◽

...

Keyword(s):

Guinea Pigs ◽

Vestibular Nuclei ◽

Vestibular Stimulation ◽

Serotoninergic System ◽

Caloric Vestibular Stimulation ◽

The Media

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Effects of ketamine on brain function during metacognition of episodic memory

Neuroscience of Consciousness ◽

10.1093/nc/niaa028 ◽

2021 ◽

Vol 2021 (1) ◽

Author(s):

Mirko Lehmann ◽

Claudia Neumann ◽

Sven Wasserthal ◽

Johannes Schultz ◽

Achilles Delis ◽

...

Keyword(s):

Episodic Memory ◽

Parietal Lobe ◽

Memory Task ◽

Reaction Times ◽

Neural Correlates ◽

Double Blind ◽

Lingual Gyrus ◽

States Of Consciousness ◽

Fmri Study ◽

Confidence Ratings

Abstract Only little research has been conducted on the pharmacological underpinnings of metacognition. Here, we tested the modulatory effects of a single intravenous dose (100 ng/ml) of the N-methyl-D-aspartate-glutamate-receptor antagonist ketamine, a compound known to induce altered states of consciousness, on metacognition and its neural correlates. Fifty-three young, healthy adults completed two study phases of an episodic memory task involving both encoding and retrieval in a double-blind, placebo-controlled fMRI study. Trial-by-trial confidence ratings were collected during retrieval. Effects on the subjective state of consciousness were assessed using the 5D-ASC questionnaire. Confirming that the drug elicited a psychedelic state, there were effects of ketamine on all 5D-ASC scales. Acute ketamine administration during retrieval had deleterious effects on metacognitive sensitivity (meta-d′) and led to larger metacognitive bias, with retrieval performance (d′) and reaction times remaining unaffected. However, there was no ketamine effect on metacognitive efficiency (meta-d′/d′). Measures of the BOLD signal revealed that ketamine compared to placebo elicited higher activation of posterior cortical brain areas, including superior and inferior parietal lobe, calcarine gyrus, and lingual gyrus, albeit not specific to metacognitive confidence ratings. Ketamine administered during encoding did not significantly affect performance or brain activation. Overall, our findings suggest that ketamine impacts metacognition, leading to significantly larger metacognitive bias and deterioration of metacognitive sensitivity as well as unspecific activation increases in posterior hot zone areas of the neural correlates of consciousness.

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Cortical thickness, neuron density and size in the inferior parietal lobe in schizophrenia

Schizophrenia Research ◽

10.1016/j.schres.2012.01.006 ◽

2012 ◽

Vol 136 (1-3) ◽

pp. 43-50 ◽

Cited By ~ 16

Author(s):

John F. Smiley ◽

Kira Konnova ◽

Cynthia Bleiwas

Keyword(s):

Cortical Thickness ◽

Parietal Lobe ◽

Inferior Parietal Lobe ◽

Neuron Density

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Transport of Heat in Caloric Vestibular Stimulation. Conduction, Convection or Radiation?

Acta Oto-Laryngologica ◽

10.3109/00016489109137370 ◽

1991 ◽

Vol 111 (2) ◽

pp. 169-175 ◽

Cited By ~ 10

Author(s):

H. Feldmann ◽

K. B. Hüttenbrink ◽

K. W. Delank

Keyword(s):

Vestibular Stimulation ◽

Caloric Vestibular Stimulation

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Inferior Parietal Lobe Activity in Visuo-Motor Integration during the Robot Hand Illusion

Psychology ◽

10.4236/psych.2018.915174 ◽

2018 ◽

Vol 09 (15) ◽

pp. 2996-3006

Author(s):

Mohamad Arif Fahmi Bin Ismail ◽

Sotaro Shimada

Keyword(s):

Parietal Lobe ◽

Robot Hand ◽

Inferior Parietal Lobe

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Metacognitive process and levels of physical activity in university students

Tesis Psicológica ◽

10.37511/tesis.v16n2a4 ◽

2021 ◽

Vol 16 (2) ◽

pp. 1-20

Author(s):

Laura Herrera-Agudelo ◽

Haney Aguirre-Loaiza ◽

María De Los Ángeles Ortega Díaz ◽

Ayda Cristina Rivas Múñoz

Keyword(s):

Physical Activity ◽

University Students ◽

Cognitive Processes ◽

International Physical Activity Questionnaire ◽

Short Form ◽

Metacognitive Awareness ◽

Regulation Of Cognition ◽

Main Effects ◽

Metacognitive Awareness Inventory ◽

Activity Questionnaire

Background: Cognitive processes are associated with Systematic Physical Activity (SPA). However, few studies have evaluated the relation between SPA and Metacognition (MC). Objectives: (1) to study the effect of the SPA levels on MC, and (2) to explore the covariance of gender. Method: Through a Non-Experimental design and with intentional sampling, 270 university students participated (Mage= 25.3, SD= 1.5, min= 18, max= 51), 209 men (77.4%), and 61 women (22.6%). The International Physical Activity Questionnaire-Short Form (IPAQ-SF) and The Metacognitive Awareness Inventory were completed. The MANOVA showed that SPA levels significantly affected MC. The MANCOVA did not show a gender effect. Results: The main effects indicated that moderate and vigorous SPA levels favor MC. Differences were observed between the low vs vigorous SPA levels (p= .035, 95% CI [-1.49, -0.03]) in the knowledge of cognition factor. Similarly, there are differences in the regulation of cognition between low vs moderate SPA levels (p= .013, 95% CI [-1.86, -0.16]), and low vs vigorous (p= .044, 95% CI [-1.72 , -0.15]). Conclusions: moderate and vigorous SPA levels favor CM, mainly the regulation of cognition. In contrast, the vigorous SPA level favors the knowledge of cognition.

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