creators_name: Humphrey, Nicholas type: journale datestamp: 2002-08-12 lastmod: 2011-03-11 08:54:20 metadata_visibility: show title: Why Grandmothers May Need Large Brains. (Commentary on Skoyles on Brain Expertise) ispublished: pub subjects: bio-ani-cog subjects: physio-psy subjects: Psycoloquy subjects: bio-socio subjects: evol-psy subjects: behav-neuro-sci full_text_status: public keywords: brain size, evolution of intelligence, human life history, social intelligence hypothesis, human evolution abstract: Skoyles's case against human brain size being related to IQ is strong; but his case in favor of its being related to expertise is weak. I propose that the explanation for the evolutionary expansion of the human brain in fact lies far away, in the need to have a brain that could continue to function into old age. date: 1999 date_type: published publication: Psycoloquy volume: 10 number: 024 pagerange: 1-3 refereed: TRUE citation: Humphrey, Nicholas (1999) Why Grandmothers May Need Large Brains. (Commentary on Skoyles on Brain Expertise). [Journal (On-line/Unpaginated)] document_url: http://cogprints.org/848/1/skoyles.htm