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Investigation of Oscillations Underlying Human Cognitive and Affective Processing Using Intracranial EEG
2 other identifiers
interventional
4
1 country
1
Brief Summary
Purpose: To investigate the electrophysiological correlates of human cognition and affective processing. Participants: Drug-resistant epilepsy patients undergoing epilepsy surgery cortical mapping with continuous electrocorticography (ECoG) with intracranial electrodes. Procedures (methods): Participants will perform computer-based cognitive and affective processing tasks during routine long-term monitoring. Intracranial EEG will be collected during the task
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Aug 2017
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
August 7, 2017
CompletedFirst Submitted
Initial submission to the registry
August 29, 2017
CompletedFirst Posted
Study publicly available on registry
August 31, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 29, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
July 29, 2018
CompletedJanuary 13, 2020
January 1, 2020
12 months
August 29, 2017
January 9, 2020
Conditions
Outcome Measures
Primary Outcomes (1)
Intracranial EEG Spectra Power
Spectral analysis of electrophysiology data will be performed using multi-taper fft and wavelet transforms. The measures will be compared between different epochs within the tasks to determine what oscillations are modulated by the task. The correlation between the measures described above and the task performance will also be estimated.
Intracranial EEG will be collected simultaneously when the participants perform the task. 1 Hour
Secondary Outcomes (2)
Task Performance: Reaction Times
1 Hour
Intracranial EEG Functional Connectivity Analysis
Intracranial EEG will be collected simultaneously when the participants perform the task. 1 Hour
Study Arms (1)
Cognitive and Emotion Processing Tasks
EXPERIMENTALAs a part of the clinical monitoring, intracranial EEG is continuously collected when the participant is at the Epilepsy Monitoring Unit at the UNC Neuroscience Hospital. We will use an FDA approved EEG amplifier/data acquisition system to collect the research data. Computer-based tasks will be presented through a laptop and task related timing information will be transmitted from the laptop to the data acquisition system. Computer-based tasks will include Working Memory task, Reward Learning Task and Facial Emotion Recognition Task
Interventions
Sternberg Task Items, which can be visually presented alphabets, shapes or numbers or sound tones presented through speakers, will be presented to the participant. The participant will need to maintain the presented items in their memory and indicate, when a single probe item is presented, whether the probe item was present in the immediately preceding list by pressing a key on the keyboard. N-Back Task Items are presented continuously sequentially and participants are instructed to indicate whether items are repeated n items before by pressing a key on the keyboard. The task is divided into blocks of 0,1,2,3 -back trials based on the 'n'. For example in the 2 - back task, the participant has to indicate if the item presented 2 items before matches the current item. Similar to the previous task, the items can be presented visually or auditorily.
Two abstract visual stimuli are presented on the screen and participant is asked to choose one. Unknown to the participant, each stimulus is associated with distinct probabilities of virtual reward such that one stimulus is associated with net gain while the other is associated with net loss. The participant's goal is to maximize the reward. Once the participant identifies the stimulus associated with net gain, the reward probabilities are reversed. This process is repeated 5 times.
On a given trial, participants will be presented with images of two faces side-by-side. The faces will either match in terms of emotion category (e.g., 2 anger faces) or not (e.g., an anger face and a fear face). Faces presented together will always be of the same gender but different identities. Participants will be asked to determine whether the two faces presented depict the same emotion category.
Eligibility Criteria
You may qualify if:
- History of medically intractable epilepsy
- Capable of giving informed consent
- Aged 18 - 80 years, either sex
You may not qualify if:
- Major systemic illness
- Severe cognitive impairment defined as mini-mental state examination of less than 20
- Severe psychiatric illness
- Excessive use of alcohol or other substances
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of North Carolina at Chapel Hill
Chapel Hill, North Carolina, 27599, United States
Related Publications (12)
Hsieh LT, Ranganath C. Frontal midline theta oscillations during working memory maintenance and episodic encoding and retrieval. Neuroimage. 2014 Jan 15;85 Pt 2(0 2):721-9. doi: 10.1016/j.neuroimage.2013.08.003. Epub 2013 Aug 8.
PMID: 23933041BACKGROUNDKlimesch W. alpha-band oscillations, attention, and controlled access to stored information. Trends Cogn Sci. 2012 Dec;16(12):606-17. doi: 10.1016/j.tics.2012.10.007. Epub 2012 Nov 7.
PMID: 23141428BACKGROUNDSauseng P, Klimesch W, Heise KF, Gruber WR, Holz E, Karim AA, Glennon M, Gerloff C, Birbaumer N, Hummel FC. Brain oscillatory substrates of visual short-term memory capacity. Curr Biol. 2009 Nov 17;19(21):1846-52. doi: 10.1016/j.cub.2009.08.062.
PMID: 19913428BACKGROUNDSymons AE, El-Deredy W, Schwartze M, Kotz SA. The Functional Role of Neural Oscillations in Non-Verbal Emotional Communication. Front Hum Neurosci. 2016 May 25;10:239. doi: 10.3389/fnhum.2016.00239. eCollection 2016.
PMID: 27252638BACKGROUNDBonnefond M, Jensen O. Alpha oscillations serve to protect working memory maintenance against anticipated distracters. Curr Biol. 2012 Oct 23;22(20):1969-74. doi: 10.1016/j.cub.2012.08.029. Epub 2012 Oct 4.
PMID: 23041197BACKGROUNDKhader PH, Jost K, Ranganath C, Rosler F. Theta and alpha oscillations during working-memory maintenance predict successful long-term memory encoding. Neurosci Lett. 2010 Jan 14;468(3):339-43. doi: 10.1016/j.neulet.2009.11.028. Epub 2009 Nov 14.
PMID: 19922772BACKGROUNDMiller EK, Buschman TJ. Cortical circuits for the control of attention. Curr Opin Neurobiol. 2013 Apr;23(2):216-22. doi: 10.1016/j.conb.2012.11.011. Epub 2012 Dec 22.
PMID: 23265963BACKGROUNDBastos AM, Vezoli J, Bosman CA, Schoffelen JM, Oostenveld R, Dowdall JR, De Weerd P, Kennedy H, Fries P. Visual areas exert feedforward and feedback influences through distinct frequency channels. Neuron. 2015 Jan 21;85(2):390-401. doi: 10.1016/j.neuron.2014.12.018. Epub 2014 Dec 31.
PMID: 25556836BACKGROUNDJacobs J, Kahana MJ. Direct brain recordings fuel advances in cognitive electrophysiology. Trends Cogn Sci. 2010 Apr;14(4):162-71. doi: 10.1016/j.tics.2010.01.005. Epub 2010 Feb 25.
PMID: 20189441BACKGROUNDMendez-Bertolo C, Moratti S, Toledano R, Lopez-Sosa F, Martinez-Alvarez R, Mah YH, Vuilleumier P, Gil-Nagel A, Strange BA. A fast pathway for fear in human amygdala. Nat Neurosci. 2016 Aug;19(8):1041-9. doi: 10.1038/nn.4324. Epub 2016 Jun 13.
PMID: 27294508BACKGROUNDHuijgen J, Dinkelacker V, Lachat F, Yahia-Cherif L, El Karoui I, Lemarechal JD, Adam C, Hugueville L, George N. Amygdala processing of social cues from faces: an intracrebral EEG study. Soc Cogn Affect Neurosci. 2015 Nov;10(11):1568-76. doi: 10.1093/scan/nsv048. Epub 2015 May 11.
PMID: 25964498BACKGROUNDMurray RJ, Brosch T, Sander D. The functional profile of the human amygdala in affective processing: insights from intracranial recordings. Cortex. 2014 Nov;60:10-33. doi: 10.1016/j.cortex.2014.06.010. Epub 2014 Jun 19.
PMID: 25043736BACKGROUND
Study Officials
- PRINCIPAL INVESTIGATOR
Flavio Frohlich, PhD
University of North Carolina, Chapel Hill
- PRINCIPAL INVESTIGATOR
Hae Won Shin, MD
University of North Carolina, Chapel Hill
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- BASIC SCIENCE
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 29, 2017
First Posted
August 31, 2017
Study Start
August 7, 2017
Primary Completion
July 29, 2018
Study Completion
July 29, 2018
Last Updated
January 13, 2020
Record last verified: 2020-01