Fig 7. Functional coupling between the FAF and the CN during vocalization.

Time-frequency resolved coherence between the striatum and four exemplary channels of the FAF at (a) 100-μm; (b) 300-μm; (c) 500-μm; and (d) 800-μm depths during communication (n = 628 trials). Black lined regions refer to the 95th percentile of all computed coherence values during vocalization. (e) Time resolved coherence strength between both structures across cortical depths in theta and alpha (panel (f)) during the production of communication calls. Mean coherence values across frequencies in each range were calculated. (g)–(j) Coherograms in four example channels during echolocation pulse production (n = 493 trials). (k)–(l) Same as (e) and (f) but for the echolocation case. During echolocation production, pronounced coherence in theta in the top-to-middle layers was found 200 ms after call onset. This temporal pattern differs from that observed during the production of communication calls. The coherence was computed based on data that can be found at https://doi.org/10.12751/g-node.6a0d94. CN, caudate nucleus; FAF, frontal auditory field.