I created a simple iPhone app to study the cognitive potentials of the human brain (auditory evoked potential P300). I call this application «NeuroLatency».
English is not my native language, so I apologize if something is not completely clear written in this letter.
If you have any question please email to firstname.lastname@example.org
USER GUIDE FOR APP
The app for entertainment and science purposes only. The app is not applicable to medicine. If you want to use the app for medicine — you must go to your doctor.
1) program purpose
— measurement and evaluation of cognitive evoked potential P300
2) order actions
— on this iPhone, you need to turn on Bluetooth
— put the gadget on your head and turn it on.
— in the program select the Test tab, select your device in the list of available devices.
— check the contact of skin
— please, press the button with the name «START?». after that, the program will play various stimuli (sounds with a frequency set in the settings) and the number of the current era will be displayed on the button.
— the user needs to press a button when the target stimulus sounds
— the target stimulus will sound like this
— the deviant stimulus will sound
— the ordinary stimulus will sound
— after the number of epochs specified in the settings, the program proceeds to display the results on the «RESULT» tab
3) evaluation of results
— the graph on the Result tab shows the target stimuli a red line, the deviant stimuli a dashed line, the rest of the stimuli a blue line
— the user can publish the result of the study by clicking on the «share the result» button
4) tips and tricks
— the test result will be much more accurate if the user is in a relaxed state and with eyes closed
— the test is best carried out in a calm environment (silent room) and use headphones
5) artifact causes and incorrect test results
— blinking eyes and movement of facial muscles
— poor skin contact or dry skin at the site of contact