Hi Nata,

It is large number of domains that have to be seen, including mental representations, conceptualisation, sign language, autism... perception - visual and multimodal... It depends on the concrete situation that has lead to this general question. I have liked this concerning meaning-creation :

https://gumc.georgetown.edu/news/After-Learning-New-Words-Brain-Sees-Them-as-Pictures

and

http://grantome.com/grant/NSF/BCS-1026934

Velina

thanks