An empirically-based scenario for the evolution of cultural transmission in the human lineage during the last 3.3 million years
Fig 2
Correlations among transmission modes.
Correlation analysis of the 19 modes of cultural transmission considered in this study (see Methods for the definitions of these variables). The size of blue and red dots indicates different degrees of positive and negative correlation, respectively (p > 0,05 boxed). Green bars help visualizing the modes of cultural transmission pertaining to the spatial, the temporal and the social dimensions. Correlation values are presented in S1 Fig.