Clinical trial NCT04650438: Sleep and Creativity
Official title: Sleep and Creativity
Study type: INTERVENTIONAL
Overall status: WITHDRAWN
Phase: NA
Conditions: Creativity Performance in Healthy Subjects
Lead sponsor: Insel Gruppe AG, University Hospital Bern
Sponsor class: OTHER
First posted: 2020-12-02
Enrollment: 0
Sex: ALL
Minimum age (years): 18
Maximum age (years): 70
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Intervention model description: Single-blind, randomized, cross-over trial
Primary purpose: BASIC_SCIENCE

Brief summary: Creativity is a complex neuro-psycho-philosophical phenomenon that is difficult to define. Neurocognitive models of creativity suggest that creativity is associated with the activity of a distributed, bilateral fronto-temporal and parietal network. Therefore, a modulation of frontal activity is necessary to allow a certain degree of "controlled disinhibition", which seems to be necessary for creative thinking. In addition, a modulation of the lower parietal lobe (IPL) might allow targeting the brain regions responsible for idea generation.

This project will investigate the application of transcranial magnetic stimulation (TMS) with the intent of modulating creativity performance of healthy subjects. Resting state electroencephalography (EEG) that will be acquired pre- and post-TMS and participants' creative performance will be measured.

Perspectives include a better understanding of the differences between high- and low-creativity groups, as measured by a creativity test battery, in their response to TMS. Additional perspectives are whether there are differences in creativity performance depending on the stimulation location.


Eligibility criteria: Inclusion Criteria:

* Informed consent as documented by signature
* Age between 18 and 70 years
* Neurologically healthy, i.e., with no documented or present neurological disease or brain injury
* Normal or corrected-to-normal visual acuity

Exclusion Criteria:

* Any instable medical condition, in particular epilepsy (past or pre-sent, including seizures or febrile convulsions)
* Any surgical intervention to the brain
* Implanted medical devices (e.g., cochlear implants, infusion pumps, neurostimulators, pacemakers)
* Presence of metal in the region of the head (excluding fixed dental implants such as tooth fillings or fixed dental braces)
* Drug or alcohol abuse
* Intake of any medication that is likely to lower seizure threshold
* For female participants: in order to participate in the study, female patients in reproductive age need to take a pregnancy test (a stand-ard urine pregnancy test will be provided).
* Previous enrolment in a creativity study of the same PI

Primary outcomes:
measure: Change in creativity performance prior- and post-TMS
timeFrame: 2.5 hours
Secondary outcomes:
measure: Change in creativity performance prior- and post-TMS depending on stimulation location
timeFrame: 2.5 hours
Other outcomes:
Locations:
Study officials:
affiliation: Department of Neurology Inselspital, Bern University Hospital
name: René M. Müri, Prof. Dr.
role: PRINCIPAL_INVESTIGATOR
affiliation: Department of Neurology Inselspital, Bern University Hospital
name: Claudio Bassetti, Prof. Dr.
role: STUDY_CHAIR
References:
citation: Beaty RE, Benedek M, Wilkins RW, Jauk E, Fink A, Silvia PJ, Hodges DA, Koschutnig K, Neubauer AC. Creativity and the default network: A functional connectivity analysis of the creative brain at rest. Neuropsychologia. 2014 Nov;64:92-8. doi: 10.1016/j.neuropsychologia.2014.09.019. Epub 2014 Sep 20.
citation: Jung J, Bungert A, Bowtell R, Jackson SR. Vertex Stimulation as a Control Site for Transcranial Magnetic Stimulation: A Concurrent TMS/fMRI Study. Brain Stimul. 2016 Jan-Feb;9(1):58-64. doi: 10.1016/j.brs.2015.09.008. Epub 2015 Sep 25.
citation: Lustenberger C, Boyle MR, Foulser AA, Mellin JM, Frohlich F. Functional role of frontal alpha oscillations in creativity. Cortex. 2015 Jun;67:74-82. doi: 10.1016/j.cortex.2015.03.012. Epub 2015 Apr 1.
citation: Nyffeler T, Wurtz P, Pflugshaupt T, von Wartburg R, Luthi M, Hess CW, Muri RM. One-Hertz transcranial magnetic stimulation over the frontal eye field induces lasting inhibition of saccade triggering. Neuroreport. 2006 Feb 27;17(3):273-5. doi: 10.1097/01.wnr.0000199468.39659.bf.
citation: Rossi S, Hallett M, Rossini PM, Pascual-Leone A; Safety of TMS Consensus Group. Safety, ethical considerations, and application guidelines for the use of transcranial magnetic stimulation in clinical practice and research. Clin Neurophysiol. 2009 Dec;120(12):2008-2039. doi: 10.1016/j.clinph.2009.08.016. Epub 2009 Oct 14.
citation: Park HR, Kirk IJ, Waldie KE. Neural correlates of creative thinking and schizotypy. Neuropsychologia. 2015 Jul;73:94-107. doi: 10.1016/j.neuropsychologia.2015.05.007. Epub 2015 May 12.
citation: Vartanian O, Beatty EL, Smith I, Blackler K, Lam Q, Forbes S. One-way traffic: The inferior frontal gyrus controls brain activation in the middle temporal gyrus and inferior parietal lobule during divergent thinking. Neuropsychologia. 2018 Sep;118(Pt A):68-78. doi: 10.1016/j.neuropsychologia.2018.02.024. Epub 2018 Feb 23.