The capacity to identify the unanticipated abnormal clues in the nature setting is vital for survival.The SSA(Stimulus-specific adaptation)has been regarded as the neuronal correlates for change detection.There has been a comprehensive assessment of the SSA in the frequent domain along the auditory pathway,with minimum focus being embraced in the spatial SSA.The current study performs assessment of SSA in the spatial field for TRN neurons.We show that TRN neurons responded more strongly to the tones at rare location than to the same tone at the same location when the location was common.Subsequently,we engaged signal detection theory to directly gauge spatial discriminability and found that deviant locations discriminability were considerably higher than those witnessed for standard locations.