"cocktail party effect" meaning in English

{
  "etymology_text": "Suggesting a party where many groups of people are talking at the same time.",
  "forms": [
    {
      "form": "cocktail party effects",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "cocktail party effect"
      },
      "expansion": "cocktail party effect (plural cocktail party effects)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Linguistics",
          "orig": "en:Linguistics",
          "parents": [
            "Language",
            "Social sciences",
            "Communication",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The ability (or the difficulty) of focusing one's attention on a single auditory source in a jumble of noises."
      ],
      "id": "en-cocktail_party_effect-en-noun-TSOrPVNa",
      "links": [
        [
          "ability",
          "ability"
        ],
        [
          "difficulty",
          "difficulty"
        ],
        [
          "focusing",
          "focusing"
        ],
        [
          "attention",
          "attention"
        ],
        [
          "auditory",
          "auditory"
        ]
      ],
      "wikipedia": [
        "cocktail party effect"
      ]
    }
  ],
  "word": "cocktail party effect"
}

{
  "etymology_text": "Suggesting a party where many groups of people are talking at the same time.",
  "forms": [
    {
      "form": "cocktail party effects",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "cocktail party effect"
      },
      "expansion": "cocktail party effect (plural cocktail party effects)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Linguistics"
      ],
      "glosses": [
        "The ability (or the difficulty) of focusing one's attention on a single auditory source in a jumble of noises."
      ],
      "links": [
        [
          "ability",
          "ability"
        ],
        [
          "difficulty",
          "difficulty"
        ],
        [
          "focusing",
          "focusing"
        ],
        [
          "attention",
          "attention"
        ],
        [
          "auditory",
          "auditory"
        ]
      ],
      "wikipedia": [
        "cocktail party effect"
      ]
    }
  ],
  "word": "cocktail party effect"
}