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{
    "pk": 27571,
    "title": "Attention Modulation Effects on Visual Feature-selectivity of Neurons inBrain-inspired Categorization Models",
    "subtitle": null,
    "abstract": "Most Brain-inspired Visual Object Recognition Models(BVORMs) do not consider local and global reciprocal con-nections in visual pathway. We addressed this weakness and implemented an attention modulation mechanism based on feed-back connections in BVORMs, where feature-selectivity is shaped and modulated by categorization of objects based on theirvisual features. This modification is inspired by the top-down neuromodulatory signals that make changes in post-synapticactivities of the feature-selective neurons. We also incorporated an implicit memory unit in BVORMs to accumulate recentHebbian synaptic plasticity’s of the neurons in each task. This mechanism guides the top-down feature-based attention modula-tion to retrieve the interrelated feature-selectivity pattern for each task.HMax and CNN models were used as two BVORMs andtested on a visual categorization problem: natural versus artificial objects in CALTECH-256. Based on experimental results,our proposed modifications not only increased their biological-plausibility but also significantly improved their categorizationaccuracies compared to the original models.",
    "language": "eng",
    "license": {
        "name": "",
        "short_name": "",
        "text": null,
        "url": ""
    },
    "keywords": [],
    "section": "Posters: Member Abstracts",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/9vd6671x",
    "frozenauthors": [
        {
            "first_name": "Saeed",
            "middle_name": "",
            "last_name": "Masoudnia",
            "name_suffix": "",
            "institution": "University of Tehran",
            "department": ""
        },
        {
            "first_name": "Abdol-Hossein",
            "middle_name": "",
            "last_name": "Vahabie",
            "name_suffix": "",
            "institution": "Institute for Research in Fundamental Sciences",
            "department": ""
        },
        {
            "first_name": "Majid",
            "middle_name": "Nili",
            "last_name": "Ahmadabadi",
            "name_suffix": "",
            "institution": "University of Tehran",
            "department": ""
        },
        {
            "first_name": "Babak",
            "middle_name": "Nadjar",
            "last_name": "Araabi",
            "name_suffix": "",
            "institution": "University of Tehran",
            "department": ""
        }
    ],
    "date_submitted": null,
    "date_accepted": null,
    "date_published": "2017-01-01T18:00:00Z",
    "render_galley": null,
    "galleys": [
        {
            "label": "PDF",
            "type": "pdf",
            "path": "https://journalpub.escholarship.org/cognitivesciencesociety/article/27571/galley/17207/download/"
        }
    ]
}