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2016 ; 283
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Attention-like processes in insects
#MMPMID27852803
Nityananda V
Proc Biol Sci
2016[Nov]; 283
(1842
): ä PMID27852803
show ga
Attention is fundamentally important for sensory systems to focus on
behaviourally relevant stimuli. It has therefore been an important field of study
in human psychology and neuroscience. Primates, however, are not the only animals
that might benefit from attention-like processes. Other animals, including
insects, also have to use their senses and select one among many stimuli to
forage, avoid predators and find mates. They have evolved different mechanisms to
reduce the information processed by their brains to focus on only relevant
stimuli. What are the mechanisms used by insects to selectively attend to visual
and auditory stimuli? Do these attention-like mechanisms achieve the same
functions as they do in primates? To investigate these questions, I use an
established framework for investigating attention in non-human animals that
proposes four fundamental components of attention: salience filters, competitive
selection, top-down sensitivity control and working memory. I discuss evidence
for each of these component processes in insects and compare the characteristics
of these processes in insects to what we know from primates. Finally, I highlight
important outstanding questions about insect attention that need to be addressed
for us to understand the differences and similarities between vertebrate and
insect attention.