Fig. 1 | Scientific Reports

Fig. 1

From: Spatial separation between two sounds affects first-spike latencies of responses elicited by the sounds in the rat’s auditory midbrain neurons

Fig. 1

Locations of sound calibration/presentation and trains of stimuli. (a) Locations of sound calibration/presentation. An arrow indicates that neurophysiological recordings were obtained from neurons in the right IC. (b) Top block: An oddball paradigm with both Std and Odd presented (first row), Odd omitted (second row), and Std omitted (third row). Bottom block: An equal-probability two-tone sequence with both Eqls presented (first row), and one of the two sounds omitted (second and third rows). (c) An oddball paradigm (top row) and an equal probability two-tone sequence (bottom row) were presented with two sounds colocalized at c90° (left column) or separated by a 90° angle (middle and right columns). In the figure, loudspeaker symbols indicate locations of sounds while rectangle shapes indicate sound stimuli. Red, magenta, and blue colors represent Odd, Eql, and Std, respectively. Open and filled shapes represent two different Eql sounds, respectively. A speaker with both red and blue colors indicates that Odd and Std are colocalized, while a speaker with both open and filled magenta color indicates that two Eql sounds are colocalized.

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