Selective contribution of the telencephalic arcopallium to the social facilitation of foraging efforts in the domestic chick

To investigate the neural basis of socio‐economic behaviors in birds, we examined the effects of bilateral electrolytic lesions of arcopallium (Arco, the major descending pallial area of the avian telencephalon) and the surrounding nuclei in domestic chicks. We tested foraging effort (running distance) in an I‐shaped maze with two food patches that delivered food in a biased manner according to a variable interval schedule. Normally, chicks run...