Ln this article, activity theory is analysed. Specific examples for the ana
lysis are taken from Ratner's (2000) article on emotions. It is concluded t
hat activity theory in general and Ratner's approach in particular are defi
cient at three different levels of analysis: from a general theoretical app
roach to the study of mind to specific details of how particular mental phe
nomena and their development are studied. Reasons are proposed for why acti
vity theory in principle cannot solve those deficiencies. It is proposed th
at Vygotsky's cultural-historical psychology may be more suitable for under
standing the human mind and its genesis.