Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    0
    ReputationRep:
    This is from a paper about the diminutive early human, Homo floresiensis:


    'They argued that the H. floresiensis brain was derived in the frontal and temporal regions and in the position of the lunate sulcus, features that are associated with advanced cognitive function. Their conclusion was that H. floresiensis would have been capable of cultural behaviors inferred for it from the associated archaeological material in spite of its small brain size.'

    Does this mean the most developed parts of the brain are the frontal and temporal regions, and that the position of the lunate sulcus is significant? I don't really understand.
    Offline

    2
    ReputationRep:
    I think it means that it's a feature not shared from the common ancestor. Ie, it's more definitive and distinct to that species.

    I really should know this but I haven't done a great deal of evolutionary theory
    • Thread Starter
    Offline

    0
    ReputationRep:
    Thank you This makes sense - and I suppose I'll assume that it means those brain features are disproportionately enlarged and it has a unique position of its lunate sulcus.

    The point of this is that these derived features suggest that neurological reorganization can occur independently of an increase in brain size, so again this makes sense!
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Will you be richer or poorer than your parents?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Quick reply
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.