Investigation of changes in EEG complexity during memory retrieval: the effect of midazolam

Talebi, Nasibeh; Nasrabadi, Ali Motie; Curran, Tim

doi:10.1007/s11571-012-9214-0

Cited by 19 publications

(11 citation statements)

References 66 publications

(56 reference statements)

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“…Anterograde amnesia (forgetting information that is acquired after drug administration) has been demonstrated following administration of midazolam in several studies (5,6,14,20-23). Amnesia seems to be an advantage for patients who want to avoid the memory of an unpleasant experience during dental surgery.…”

Section: Discussionmentioning

confidence: 99%

Effects of passiflora incarnata and midazolam for control of anxiety in patients undergoing dental extraction

Lp¹,

A²,

Almeida-Souza³

et al. 2016

Med Oral

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BackgroundAnxiety symptoms are frequently observed in dental patients, whether they are undergoing simple or more invasive procedures such as surgery. This research aimed to compare the effects of Passiflora incarnata and midazolam for the control of anxiety in patients undergoing mandibular third molar extraction.Material and MethodsForty volunteers underwent bilateral extraction of their mandibular third molars in a randomized, controlled, double-blind, crossover clinical trial. Passiflora incarnata (260 mg) or midazolam (15 mg) were orally administered 30 minutes before surgery. The anxiety level of participants was evaluated by questionnaires and measurement of physical parameters, including heart rate (HR), blood pressure (BP), and oxygen saturation (SpO2).ResultsConsidering each procedure independently, there were no significant differences between the protocols in BP, HR, and SpO2. Over 70% of the volunteers responded that they felt quiet or a little anxious under both protocols. With midazolam, 20% of the participants reported amnesia (not remembering anything at all), while Passiflora showed little or no ability to interfere with memory formation.ConclusionsPassiflora incarnata showed an anxiolytic effect similar to midazolam, and was safe and effective for conscious sedation in adult patients who underwent extraction of their mandibular third molars. Key words:Passiflora incarnata, midazolam, anxiety, oral surgery.

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Section: Discussionmentioning

confidence: 99%

Effects of passiflora incarnata and midazolam for control of anxiety in patients undergoing dental extraction

Lp¹,

A²,

Almeida-Souza³

et al. 2016

Med Oral

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“…Follow-up studies extended the object discrimination task to animals versus inanimate object categories and mammals versus tools, showing that non-face objects could also be correctly categorized (Murphy et al 2008b). Besides the N170 component in ERP responses, Talebi et al (2012) determined that the positive amplitudes of ERP in 300-500 ms were considerably larger for old items than for new. Bigdely-Shamlo et al (2008) detected satellite images containing target objects (i.e., airplanes) using P3 features in ERP recorded during a rapid serial visual presentation.…”

Section: Introductionmentioning

confidence: 99%

Classifying four-category visual objects using multiple ERP components in single-trial ERP

Qin

Wang

et al. 2016

Cogn Neurodyn

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Object categorization using single-trial electroencephalography (EEG) data measured while participants view images has been studied intensively. In previous studies, multiple event-related potential (ERP) components (e.g., P1, N1, P2, and P3) were used to improve the performance of object categorization of visual stimuli. In this study, we introduce a novel method that uses multiplekernel support vector machine to fuse multiple ERP component features. We investigate whether fusing the potential complementary information of different ERP components (e.g., P1, N1, P2a, and P2b) can improve the performance of four-category visual object classification in single-trial EEGs. We also compare the classification accuracy of different ERP component fusion methods. Our experimental results indicate that the classification accuracy increases through multiple ERP fusion. Additional comparative analyses indicate that the multiple-kernel fusion method can achieve a mean classification accuracy higher than 72 %, which is substantially better than that achieved with any single ERP component feature (55.07 % for the best single ERP component, N1). We compare the classification results with those of other fusion methods and determine that the accuracy of the multiple-kernel fusion method is 5.47, 4.06, and 16.90 % higher than those of feature concatenation, feature extraction, and decision fusion, respectively. Our study shows that our multiplekernel fusion method outperforms other fusion methods and thus provides a means to improve the classification performance of single-trial ERPs in brain-computer interface research.

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“…Measures based on vertical lines, marks state where trapped for some time. This is a typical behavior of laminar states [15][16][17].…”

Section: ) Recurrence Qualification Analysismentioning

confidence: 84%

An auditory brainstem response-based expert system for ADHD diagnosis using recurrence qualification analysis and wavelet support vector machine

Esmailpoor

Nasrabadi

Malayeri

2015

2015 23rd Iranian Conference on Electrical Engineering

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Attention Deficit Hyperactivity Disorder (ADHD) is a common disorder in children. Due to lack of suitable biomarker or test, diagnosis of ADHD children is complicated and needs comprehensive evaluations. Evidences show that, ADHD children have deficit in their brainstem timing and cortex auditory processing. We assessed their auditory brainstem response to speech stimuli. Due to nonlinear and dynamic characteristics of biological signals they should be represented by features that are based on their nature. In this study wavelet coefficients and recurrence qualification analysis features were used to represent signals in a comprehensive way. In this article, we addressed the problem of discrimination of ADHD children from Normal. Wavelet Support Vector machine with Mexican hat and Morlet kernels were used in order to classifying these children. Our method demonstrated %98.57 classification accuracy.

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Investigation of changes in EEG complexity during memory retrieval: the effect of midazolam

Cited by 19 publications

References 66 publications

Effects of passiflora incarnata and midazolam for control of anxiety in patients undergoing dental extraction

Effects of passiflora incarnata and midazolam for control of anxiety in patients undergoing dental extraction

Classifying four-category visual objects using multiple ERP components in single-trial ERP

An auditory brainstem response-based expert system for ADHD diagnosis using recurrence qualification analysis and wavelet support vector machine

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