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. 2011 Nov 9;31(45):16353–16368. doi: 10.1523/JNEUROSCI.3009-11.2011

Figure 9.

Figure 9.

Calibration of devices for cooling HVC and LMAN in juvenile zebra finches. A, Left, Schematic of the device for cooling HVC using cooling pads placed against thinned cranium above HVC. Right, Temperature change at the cooling plate of the device and in the center of HVC measured in an awake bird. Current is alternated between −0.5 and 1.5 A every 100 s. The same protocol is used for all cooling experiments reported here. B, Left, Schematic of the device for cooling LMAN using thermally conductive probes. Right, Temperature change in LMAN at various distances from the cooling probe of the device using the same electric current protocol. C, Approximate locations of cooling probes in LMAN for all analyzed birds. The probes in the left and right hemisphere of each bird are indicated by circles of matching color. Note that probe diameter was 250 μm in some birds and 330 μm in others (indicated by smaller and larger circles). A, Anterior; L, lateral. D, Example of simulated temperature around the probe in a horizontal section of LMAN (see Materials and Methods).