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'per': [126], 'week': [127], 'for': [128, 211], '3': [129], 'weeks.': [130], 'Spontaneous': [131], 'locomotor': [132, 176], 'activity': [133], 'was': [134], 'measured': [135], 'on': [136, 160, 214], '10': [139], '15.': [141], 'Individual': [142], 'correlated': [150], 'with': [151], 'amount': [153], 'self-administered': [156], 'by': [157], 'day': [161], '1.': [162], 'In': [163], 'second-week': [165], 'MSA,': [167], 'exhibited': [171], 'increased': [172], 'intake': [174], 'hyperactivity': [177], 'Therefore,': [186], 'are': [190], 'susceptible': [199], 'developing': [201], 'current': [205], 'findings': [206], 'have': [208], 'clinical': [209], 'implications': [210], 'future': [212], 'research': [213], 'biological': [216], 'mechanisms': [217], 'addiction': [220], 'preclinical': [222], 'medication': [223], 'development.': [224]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2478916312', 'counts_by_year': [{'year': 2024, 'cited_by_count': 4}, {'year': 2021, 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