{ "items" : [
    { "id" : "http://dbpedia.org/resource/Backward_masking"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "Backward masking has several meanings.The original meaning of the term, in psychoacoustics, refers to temporal masking of quiet sounds that occur moments before a louder sound.A similar meaning, in use in cognitive psychology, refers to a phenomenon wherein presenting one visual stimulus (a \"mask\" or \"masking stimulus\") immediately after another brief (≤ 50 ms) \"target\" visual stimulus leads to a failure to consciously perceive the first stimulus."] } } }
