Reciprocal connectivity between secondary auditory cortical field and amygdala in mice

LP (Lateral posterior nucleus of the thalamus) MBA:218 projects to AUD (Auditory areas) MBA:247 · Mouse

CTB injected into A2 retrogradely labelled neurons in the lateral posterior thalamic nucleus.

Fig. 2c

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.

AUD (Auditory areas) MBA:247 projects to BLAp (Basolateral amygdalar nucleus, posterior part) MBA:311 · Mouse

A2 CTB injections labelled slight axon innervation in the posterior basolateral amygdala.

Fig. 2a–d

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.

AUD (Auditory areas) MBA:247 projects to CEA (Central amygdalar nucleus) MBA:536 · Mouse

After A2 CTB injection, only slight labelled-axon innervation was seen in the central amygdala.

Fig. 2a–d

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.

BLA (Basolateral amygdalar nucleus) MBA:295 projects to AUD (Auditory areas) MBA:247 · Mouse

A2 CTB injections retrogradely labelled a small number of neurons in the basolateral amygdala.

Fig. 4a

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.

MG (Medial geniculate complex) MBA:475 projects to AUD (Auditory areas) MBA:247 · Mouse

As a positive control, CTB injections into AAF and DM retrogradely labelled many neurons in the auditory thalamus (MGB).

Supplemental Fig. 2

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.

AUD (Auditory areas) MBA:247 projects to IA (Intercalated amygdalar nucleus) MBA:1105 · Mouse

The two dorsal intercalated nuclei beside La contained some CTB-labelled terminals after A2 injection, whereas the ventral main intercalated cluster had none.

Fig. 2; Results, section 1

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.

CEA (Central amygdalar nucleus) MBA:536 projects to AUD (Auditory areas) MBA:247 · Mouse

No retrogradely labelled somata were found in the central amygdala after CTB injection into A2.

Fig. 4a

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.

LA (Lateral amygdalar nucleus) MBA:131 projects to AUD (Auditory areas) MBA:247 · Mouse

No retrogradely labelled amygdala neurons were found after CTB injection into DM.

Figs. 3, 4a,b

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.

LA (Lateral amygdalar nucleus) MBA:131 projects to AUD (Auditory areas) MBA:247 · Mouse

CTB injected into A2 retrogradely labelled numerous somata in La, significantly more than in other amygdala subdivisions (five mice).

Figs. 2, 3, 4a,b

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.

LA (Lateral amygdalar nucleus) MBA:131 projects to AUD (Auditory areas) MBA:247 · Mouse

An anterograde tracer injected into LA labelled numerous axon terminal boutons in A2.

Supplemental Fig. 1

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.

AUD (Auditory areas) MBA:247 projects to BLAa (Basolateral amygdalar nucleus, anterior part) MBA:303 · Mouse

A2 CTB injections labelled slight axon innervation in the anterior basolateral amygdala.

Fig. 2a–d

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.

LA (Lateral amygdalar nucleus) MBA:131 projects to AUDp (Primary auditory area) MBA:1002 · Mouse

CTB injected into A1 retrogradely labelled about one third as many La neurons as A2 injections, concentrated caudally; dual-tracer injections showed A1- and A2-projecting La neurons intermingled but largely separate, with only 3.9% double-labelled.

Figs. 3, 4a,b, 5

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.

AUD (Auditory areas) MBA:247 projects to BMAa (Basomedial amygdalar nucleus, anterior part) MBA:327 · Mouse

A2 CTB injections labelled slight axon innervation in the anterior basomedial amygdala.

Fig. 2a–d

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.

BMA (Basomedial amygdalar nucleus) MBA:319 projects to AUD (Auditory areas) MBA:247 · Mouse

A2 CTB injections retrogradely labelled a small number of neurons in the basomedial amygdala.

Fig. 4a

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.

AUDp (Primary auditory area) MBA:1002 projects to LA (Lateral amygdalar nucleus) MBA:131 · Mouse

CTB injection into A1 labelled a small amount of axons in the amygdala/La, much weaker than after A2 injection.

Fig. 3; Results, section 1

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.

AUD (Auditory areas) MBA:247 projects to LA (Lateral amygdalar nucleus) MBA:131 · Mouse

CTB injected into A2 produced dense labelled axon terminals, mainly in La, with boutons and synaptic varicosities indicating that A2 axons terminate there.

Fig. 2a–e; Results, section 1

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.

AUD (Auditory areas) MBA:247 projects to LA (Lateral amygdalar nucleus) MBA:131 · Mouse

No CTB-labelled axon terminals were found in the amygdala after CTB injection into DM.

Figs. 3, 4a,b

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.

AUD (Auditory areas) MBA:247 projects to BMAp (Basomedial amygdalar nucleus, posterior part) MBA:334 · Mouse

A2 CTB injections labelled slight axon innervation in the posterior basomedial amygdala.

Fig. 2a–d

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.