Page 8 - ELG2109 Sep Issue 477
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RESEARCH NEWS                      .


                                                                                                                  PHOTO BY SHUTTERSTOCK































        By Gillian Ragsdale
        Insults and metaphors may   Prehistoric languages
        have  characterised  the  earliest
        prehistoric  human languages,
        according to a study by Antonio   How the Stone Age was more about hurling words than rocks
        Benítes-Burraco at the University
        of Seville in Spain and Ljiljana
        Progavac  at  Wayne  State  the sum of the parts requires   may not  seem like it, but rapid,   reduction in aggression seen in
        University, Detroit, USA.  increased connectivity across the   reactive  aggression  appears to   domesticated animals. Throughout
          The   classical  technique  brain such as has occurred during   have decreased during human   human history, cultures have
        used by linguists compares all   human evolution. This increased   evolution,  although  sadly,  tended to put pressure on people
        languages currently spoken or   connectivity also enables the   premeditated aggression increased   to conform, co-operate and be less
        recorded for similarities and   generation of ‘ideaphones’ that   and is characteristically human.   aggressive – resulting in a form of
        differences, producing detailed                        A common  substitute for   self-domestication.
        trees and maps of how languages   It may not seem     physical  aggression is  to use   Adding  the  modern-day
        have evolved over time. But this                      verbal insults. All languages have   evidence  from a range of
        method cannot reach back into   like it, but rapid,   a  range of insults, such as ‘vivid   psychiatric conditions supporting
        prehistory beyond 10 thousand                         compounds’,  where two  words,   a connection between  brain
        years ago and therefore cannot  reactive aggression   often a noun and a verb,  are   connectivity,  aggression  and
        tell us about the very first human   appears to have   put  together to  give a  negative   language, the resulting model of
        languages arising gradually as                        meaning, for example,  tattle-  prehistoric  language evolution
        much as 200 thousand years ago   decreased during     tale and cry-baby in English   proposes a  feedback loop.  In
        or even earlier. Benítes-Burraco   human evolution    or   muti-voda  (‘muddy-water’,  this model,  increasing  brain
        and Progavac have brought                             meaning  trouble-maker)  and  connectivity  and  decreasing
        together work from linguistics,                       vuci-guz (‘drag-butt’, meaning   aggression drive the emergence
        human evolution and psychiatry   use other senses, such as sound   slow-moving person) in Serbian.   and use  of figurative  language,
        to shed light on how speakers   and shape, to convey meaning,   These insulting vivid compounds   along with using verbal  rather
        of these very first languages   for example, ‘tick-tock’.  employ similar mental, linguistic   than physical aggression, which
        communicated.                In psychiatry, many conditions   processes to creating metaphors.  in turn  accelerates  the  engine
          One of the key features of   are associated with changes in   Benítes-Burraco and Progavac   of cultural changes,  such  as
        human  thought  and language   the use of language. In some, like   propose that  early prehistoric   self-domestication and further
        is ‘cross-modality’: our ability   synaesthesia  and schizophrenia,   language  evolution  involved  reduced aggression.
        to take  two unrelated  concepts   cross-modality  is  increased,  developing a fine balance between   As Winston Churchill famously
        and merge them into a new   while in others, such as autistic   increasing  connectivity between   asserted:  ‘meeting jaw to jaw is
        concept, often turning something   spectrum disorder, it is decreased.   parts of the brain and inhibiting   better than war’.
        concrete into something abstract.   Alongside these changes in cross-  pathways  in the brain that  lead
        The familiar  outcome  includes   modality, there tend to also be   to reactive aggression. This is   REFERENCE
        figurative speech and metaphor.   changes in reactive aggression, ie,   part of the gradual distancing     n Benítes-Burraco, A. and Progavac,
        If I tell you that I am a ‘night   aggression as a rapid response to   of language processing from   L. (2021) Language evolution:
        owl’,  you understand that  I am   a trigger.         emotion  in  general,  which   examining  the link between cross-
        not actually a bird. If I call you   In general, increased  cross-  enables  a more considered  use   modality and aggression through
        a ‘couch potato’,  I do not really   modality tends  to be  associated   of language and the evolution of   the lens of disorders, Philosophical
        think you are a vegetable.  with  decreased aggression and   grammatical complexity.  Transactions of the Royal  Society
          The ability to make new   this may reflect what  happened   The general reduction in   B, 376: 20200188. https://doi.
        meaning that is more than   during human brain evolution. It   reactive aggression mirrors the   org/10.1098/rstb.2020.018
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