L33 Neuroscience - Sensory Systems Flashcards
how does sensory input drive behaviour?
it informs animal about its environment
Describe Lorenz ans Tinbergen Theory
stimuli response = releasing behaviour
stimuli input = the sign stimulus
what is ‘sensory filtering’?
critical recognition of the sign stimulus
what is the difference between invertebrate and vertebrate nervous systems?
vertebrate - spinal cord and CNS
invertebrate - segmented nervous systems
what is the connectome?
neural connectivity that allows understanding of brain function
why is sea elegans a good model for neuroscience?
full connectome mapped with 90% accuracy between neurons
what is cortical plasticty?
the brain’s remarkable ability to reorganize itself by forming new neural connections based on individual experiences, lifestyle and environment
what did Merzenich find from experimenting on monkeys?
synaptic plasticity is thought to underlie cortical plasticity
what allows us to ignore irrelevant sensory input?
example tickling ourselves?
we have an efferent copy of our own motor neuron command which allows us to predict the outcome
what prevents deafening of crickets?
ON1 eardrum efferents
what is gregarization?
locusts alter behaviour from solitary to swarming
