An apparatus for generating an ear electroencephalogram signal from an ear of a patient, comprising: a housing; a first electrode provided on a first portion of the housing, wherein the first portion is structured to be received within an ear canal of the ear, and wherein the first electrode is structured to be disposed against a first surface of the ear canal when the first portion is received within the ear canal for generating a first ear canal signal; a second electrode provided on a second portion of the housing, wherein the second portion is structured to be received within a concha of the ear when the first portion is received within the ear canal, and wherein the second electrode is structured to be disposed against a surface of concha when the second portion is received within the concha for generating a concha signal; and electronic circuitry provided within the housing, the electronic circuitry being structured and configured to receive the first ear canal signal and the concha signal and to generate a first in ear signal based on the first ear canal signal and the concha signal, further comprising a third electrode provided on the first portion of the housing, wherein the third electrode is structured to be disposed against a second surface of the ear canal when the first portion is received within the ear canal for generating a second ear canal signal, and wherein the electronic circuitry is structured and configured to receive the second ear canal signal and the concha signal and to generate a second in ear signal based on the second ear canal signal and the concha signal, wherein the first in ear signal is generated by referencing the concha signal to the first ear canal signal, and wherein the second in ear signal is generated by referencing the concha signal to the second ear canal signal, wherein the electronic circuitry is structured and configured to generate the ear EEG signal by selecting between the first in ear signal and the second in ear signal. for generating an ear electroencephalogram signal from an ear of a patient, comprising: a housing; a first electrode provided on a first portion of the housing, wherein the first portion is structured to be received within an ear canal of the ear, and wherein the first electrode is structured to be disposed against a first surface of the ear canal when the first portion is received within the ear canal for generating a first ear canal signal; a second electrode provided on a second portion of the housing, wherein the second portion is structured to be received within a concha of the ear when the first portion is received within the ear canal, and wherein the second electrode is structured to be disposed against a surface of concha when the second portion is received within the concha for generating a concha signal; and electronic circuitry provided within the housing, the electronic circuitry being structured and configured to receive the first ear canal signal and the concha signal and to generate a first in ear signal based on the first ear canal signal and the concha signal, further comprising a third electrode provided on the first portion of the housing, a housing; a first electrode provided on a first portion of the housing, wherein the first portion is structured to be received within an ear canal of the ear, and wherein the first electrode is structured to be disposed against a first surface of the ear canal when the first portion is received within the ear canal for generating a first ear canal signal; a second electrode provided on a second portion of the housing, wherein the second portion is structured to be received within a concha of the ear when the first portion is received within the ear canal, and wherein the second electrode is structured to be disposed against a surface of concha when the second portion is received within the concha for generating a concha signal; and electronic circuitry provided within the housing, the electronic circuitry being structured and configured to receive the first ear canal signal and the concha signal and to generate a first in ear signal based on the first ear canal signal and the concha signal, further comprising a third electrode provided on the first portion of the housing, wherein the third electrode is structured to be disposed against a second surface of the ear canal when the first portion is received within the ear canal for generating a second ear canal signal, and wherein the electronic circuitry is structured and configured to receive the second ear canal signal and the concha signal and to generate a second in ear signal based on the second ear canal signal and the concha signal, wherein the first in ear signal is generated by referencing the concha signal to the first ear canal signal, and wherein the second in ear signal is generated by referencing the concha signal to the second ear canal signal, wherein the electronic circuitry is structured and configured to generate the ear EEG signal by selecting between the first in ear signal and the second in ear signal. wherein the first in ear signal is generated by referencing the concha signal to the first ear canal signal, and wherein the second in ear signal is generated by referencing the concha signal to the second ear canal signal, wherein the electronic circuitry is structured and configured to generate the ear EEG signal by selecting between the first in ear signal and the second in ear signal.