* when they are primary carers, they often adopt the emotional role more typically of mothers
* **Field et al. 1978**
* observed face to face interactions between infants and primary caregiver mothers, fathers and secondary caregiver fathers
* found that the **primary caregiver fathers spent more time, like mothers, holding, smiling and imitating than secondary caregiver fathers**
* these are important behaviours when building attachments
* **Shows that fathers can be more nurturing and that gender is not key, rather the level of responsiveness**