Differences

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--- kpnl:acq_day_procedures [2017/02/27 16:28] – [RUNNING EXPERIMENTS] admin
+++ kpnl:acq_day_procedures [2022/05/08 09:09] (current) – [After Experimental Session Is Complete] labuser
@@ Line 1: / Line 1: @@
-====== Before the participant arrives ======
+====== Prior to Participant Arrival ======
   * Swap out the amplifier battery with the fully charged battery on the charger
   * Confirm that headcaps and electrodes are clean and dry
@@ Line 6: / Line 6: @@
     * Double adhesive collars
     * Cable wraps
-    * Paper towels
     * External electrodes
-  * Check that the head caps and electrodes are clean and dry
-  * Test Button-box
-    * ''0_dio_test.psyexp''
-  * Test DIO codes
-    * ''0_dio_initialize.psyexp''
 ====== When the Participant Arrives ======
   * Have the participant read and sign consent form
-    * Use the correct form depending on whether they want SONA or monetary compensation
+    * Use the correct form depending on whether they want SONA/monetary compensation (and sign consent form as well)
-    * Don’t forget you need to sign the consent form too
   * Describe an overview of the procedure and experiments
-  * Ask the participant to complete the STAI questionnaire
+  * Ask the participant to complete the STAI questionnaire (or a survey specific to a particular study)
-    * Put the completed questionnaire under my door (or through the mail slot)
+    * Put the completed questionnaire in the "completed" folder file
   * Make sure the participant understands the length of time they will be in the experiment and ask if they’d like to use the restroom
-  * No chewing gum, hair down evenly, no hoodies
+  * No chewing gum, hair down evenly
   * Electronics should be left outside the recording chamber
-  * Jewelry should be removed, but can be put on the side table in the recording chamber
+  * Fill out Excel spreadsheet with participant information, SONA credit/payment information, etc.
-  * Log arrival time
+  * Log arrival time in Excel spreadsheet
 ====== Participant Preparation ======
   * Determining proper head cap size: measure in cm
-    * Measure head circumference just above the eyebrows and over the inion
+    * Measure head circumference just above the eyebrows and over the inion (the projecting occipital bone at the base of the skull)
       * 54-58 cm: Medium Cap (RED)
       * 56-60 cm: Medium/Large Cap (RED and BLUE)
       * 58-62 cm: Large Cap (BLUE)
-  * Apply external electrodes (this can be done before the cap if necessary)
+  * Apply external electrodes
     * Be sure the electrode collars are not covering the active part of the electrode
     * Reference
@@ Line 55: / Line 48: @@
     * Double check that the cap is still straight now that you’ve made your adjustments
   * Ensure that the cap’s tag at the O1, Oz, O2 electrodes is pulled out
+  * Steps for the EEG digitization process can be found at this link: [[ https://docs.google.com/document/d/1xlSQQWCuHG5U2ClRDxCXOOx1W2LTQKZpgBbWgTl5Lck/edit ]]
   * Apply gel to cap electrode holders
     * Build columns of gel: fill from syringe, move hair around
     * If participant is bald or has very short hair, start with minimal gel to avoid pooling
-  * Insert electrodes into cap
+  * Insert electrodes into cap (carefully not to stress electrode leads)
-    * Be very careful not to stress the electrode leads where the wire meets the electrode
+  * Wrap CMS/DRL three or four times around ribbon cables & EX leads (and secure with cable wrap at nape of neck and below the wraps)
-  * Wrap CMS/DRL three or four times around ribbon cables & EX leads
-    * Secure with cable wrap at nape of neck and also below the wraps
   * Bring the participant into VERONICA
 ====== Electrode Testing ======
-  * Attach the ribbon cables and EX leads to the amplifier
+  * Attach the ribbon cables and EX leads to the amplifier (correctly align the connectors to their respective ports before applying pressure)
-     * Be mindful of correctly aligning the connectors to their respective ports before you apply pressure
   * Attach the battery to the amplifier and turn on the power
   * Ensure the amplifier’s solid blue light is on indicating ''CM in range''
   * Select the ''Electrode Offset'' tab in ''ActiView''
     * Check all 64 channels and also EX 1-6
-    * Electrodes should be should be between +/- 40 mV and not bouncing up and down
+    * Electrodes should be should be ideally between +/- 20 mV, not bouncing up and down
     * If electrode is outside of range:
       * Try adding a bit more gel and parting hair with the syringe
@@ Line 102: / Line 93: @@
     * Be sure to enter the participant’s “p” number as it is saved in the EEG file
   * Recording EEG data - START
-    * Most of our experiments will automatically trigger the ''ActiView'' system to being recording. When ''PsychoPy' begins the experiment you should confirm in the ''ActiView'' window that the button above the ''Pause'' button has turned from red to green and displays ''SAVING''
+    * Most of our experiments will automatically trigger the ''ActiView'' system to being recording. When ''PsychoPy'' begins the experiment you should confirm in the ''ActiView'' window that the button above the ''Pause'' button has turned from red to green and displays ''SAVING''
-    * If you are running an experiment that does not automatically trigger EEG recording (unlikely), you would press the ''Pause'' button to begin recording
+    * Note: If you are running an experiment that does not automatically trigger EEG recording (unlikely), you would press the ''Pause'' button to begin recording
   * Recording EEG data – STOP
     * Most of our experiments will automatically pause EEG data recording when the experiment is over. However, you still need to terminate the session (i.e., close the file)
@@ Line 110: / Line 101: @@
-====== After the Experiment ======
+====== After Experimental Session Is Complete ======
-  * Turn off power and disconnect the battery from the amplifier
+  * Take picture of participant with the cap on (if they’d like one)
-  * Disconnect the electrodes from the amplifier
+    * Remember to email this picture and a screenshot of their EEG to the participant
-    * Press the white tabs to remove the ribbon cable connectors
+  * Carefully remove all of the EX electrodes and cap
-  * Carefully remove the cap and EX electrodes
+  * Give the participant paper towels and allow them to clean up
-  * Set cap and electrodes aside
+  * On the display and acquisition computers:
+    * Turn on the ''WiFi''
+    * Unpause ''Dropbox''
   * Debrief the participant
-  * Compensate the participant
+    * Tell them the goal of the studies that were run and give them the opportunity to ask any questions that they have
-  * Turn Wi-Fi back on (stimulus control and EEG acquisition computers)
+  * Log the completion time in the Excel spreadsheet and if SONA credit it being used to compensate the participant, document the credit earned and which class they would like it applied to
-  * Restart Google Drive (stimulus control and EEG acquisition computers)
+  * Compensate the participant (and have them sign the Payment Verification form)
+  * Note: Email Prof. Engell if we are low on any forms or subject payment funds (< $80)
+  * Mount the ''KPNL_Participant_Info.dmg'' virtual drive
+    * Enter your handwritten run sheet and notes into the Excel file
+    * Keep the run sheet in the lab folder
+    * Save the Excel file
+    * Unmount the ''KPNL_Participant_Info.dmg'' virtual drive
+  * Turn OFF the intercoms (pressing and holding the volume button down for 3 seconds), lights, and fan in VERONICA
 ====== Cleaning Up ======
-  * Remove the adhesive collars from the EX electrodes and set aside
+  * Carefully remove all of the electrodes from the cap
-  * Remove the EEG electrodes from the cap
+    * Take extreme care to not stress the electrode leads
-    * Do not pull on the lead or cause any strain where the lead connects to the electrode
+  * Never bend the electrode lead where it meets the electrode
-  * Fill a plastic bucket with warm water (never hot) and submerge the electrodes
+    * Electrodes should never come into contact with any metal surfaces (e.g., the sink!)
-    * Be sure that the connector end of the lead is kept dry!
+  * Ensure that the amplifiers are turned off and disconnected from the battery
-  * Clean the electrodes in the water
+  * Wash ''CMS''/''DRL'' and EX electrodes
-    * Avoid touching the active part of the electrodes
+    * Follow the same procedures as used for the cap electrodes (see below)
-    * The electrodes are clean when they no longer feel slimy (no more gel residue)
+  * Wash cap electrodes
-    * Set electrodes on a wee-wee pad to dry
+    * Swirl electrodes in a half bucket of cold water
-      * Splay them out and untangle any tangled leads
+    * After ~45 sec feel for slipperiness to indicate if gel has been washed off
-  * Clean the gel out of the electrode holders by spraying water through the holes
+    * Change the water intermittently and continue until electrodes no longer feel slippery
-  * Clean the cap in a bucket of warm water
+    * Hang ribbons from the rack and spread out the electrodes to dry on the “wee-wee pad”
-    * A small amount of Dove soap can be used
+  * Wash cap
+    * Use the sprayer to wash the gel out of each of the electrode holders
+  * The sprayer can make a mess, so keep the water pressure relatively low and wear the brain apron!
+    * Wash in warm soapy (use a small amount of Ivory liquid soap) water in bucket
+    * Wash so there is not gel in the fabric
+  * Be careful to excessively stretch the fabric during cleaning
+    * Once clean, rinse the cap in clean water
+    * Place the clean cap on one of the plastic cap racks to dry
+  * Do not pull the cap down over the rack or stretch it in any way
+    * If another participant is scheduled for the same day it is important to speed up drying of the cap. To do so,
+  * Remove as much water as possible by towel drying (do not stretch the cap)
+  * Turn on and direct the fan at the drying rack