biosemi64_channel_info: Channel information for the 64 sensor Biosemi cap

In AndrewHFarkas/EMEGShelper: What the Package Does (One Line, Title Case)

Channel information for the 64 sensor Biosemi cap

Description

This data frame shows the channel names in order as well as each channels Cartesian and Spherical coordinates. You may notice that the channels are slightly lower than the 128 channels or the Oostenveld channels. This is because this is the way the Biosemi the company and an older version of EMEGS thought the channels were located. It is a small difference, but we leaving the older channel positions for this cap such that it is consistent with our already published studies. Cartesian coordinates assume a radius of 1.

Usage

biosemi64_channel_info

Format

A data frame with 64 rows and 9 variables:

channel_number

channel number used in EMEGS and read from AR file

channel_name

actual channel name

channel_name_uppercase

channel name but all letters are uppercase which can be useful for matching channels as researchers are not always consistent

X

channel X coordinate with negative values toward the right ear

Y

channel Y coordinate with positive values toward the nose

Z

channel Z coordinate with 1 at Cz

EPosSphere_theta

angle in radians from Cz north pole to south pole with Cz being 0

EPosSphere_phi

angle in radians from right ear (0) toward nose then left ear continuing until back at right ear

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AndrewHFarkas/EMEGShelper documentation built on Oct. 20, 2023, 9:57 a.m.