- Went well. I'd revised and studied my BB literature again prior to going in. Spoke with confidence and authority about methodology with which to implement this within new test design.
- Key points to remember here are BB's (according successful lit: Lanes, Kasian, Owens, Marsh 1998) are required to be played amongst pink noise with a carrier tone 15db above the amplitude of the noise.
- Even the control group were played pink noise and a carrier tone.
- This could be adapted using road noise
- Isochronics and Monaural methodology can be at greater amplitudes and with a single speaker presentation model (which suits our study conditions best also)
- Will & Berg (2007) observed brainwave synchronisation through high grade EEG equipment when playing monaural drum and click acoustic stimuli to participants at 79db.
- Following this meeting my objective is to build a new MaxMSP patch that tests these monaural methods matching the literature with precision.
- Need to thoroughly investigate Isochronics and Monaural methods before commencing this, after current obligations with GYRE.
- Exciting! I look forward to getting into it.
Lanes, Kasian, Owens, Marsh 1998
Brain wave synchronization and entrainment to periodic acoustic stimuli
Will U, Berg E 2007
- This week I also created a Psychomotor Vigilance Task in MaxMSP.
The PVT is a simple task where the subject presses a button as soon as the light appears. The light will turn on randomly every few seconds for 5–10 minutes. The main measurement of this task is not to assess the reaction time, but to see how many times the button is not pressed when the light is on. The purpose of the PVT is to measure sustained attention, and give a numerical measure of sleepiness by counting the number of lapses in attention of the tested subject.
Apologies for the resolution, this site maxes at 320x240 resolution
The patch takes spacebar as an input and displays the LED randomly every few seconds
for 5 minutes (adjustable to 10min) - the patch records both how long it takes to respond and how many times the LED was missed (lapse in attention)
This information is recorded in a text file that can be imported into Excel.
PVT literature sources I used to develop the patch:
https://faculty.washington.edu/wobbrock/pubs/ph-13.pdf
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.611.458&rep=rep1&type=pdf
http://www.unisanet.unisa.edu.au/staff/matthewthomas/GREG/roach(shortpvt)06.pdf
- Also this week I discovered "Brain.fm" through a podcast I was listening to regarding brainwave entrainment methods.
- The creators/owners of the site talked a lot of sales bullshit and didn't get into the hard science behind their algorithms - primarily because brain.fm is a paid service and they aren't disclosing their proprietary algos
- However, they do back up their claims with studies conducted by Neuroscientists
- Dr. Ben Morillon. Cognitive Neuroscientist, Inserm Researcher Aix-Marseille Université
- Dr. Giovanni Santostasi. Neuroscientist at Northwestern University.
- A team 'advisors' (consisting of 4 PhD + 1 Professor)
- I am very keen to dig deep into their methodology and discover how exactly their are extending "auditory neuroscience" and yielding these dramatic results. Snake Oil???
- I'm going to start an account and try it for myself.
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