The Majority/Minority Effect on Product Judgment: Moderation of Involvement and Source Relevance

本文探討多數/ 少數效果對產品態度的影響，是否會受到涉入程度以及訊息相關性的干擾。我們認為在不同涉入程度之下，多數/ 少數訊息來源對產品態度的影響能扮演不同角色。在低涉入之下，多數/少數訊息來源被視為一種週邊線索，可以直接影響產品態度；在中涉入之下，多數/ 少數訊息來源會影響消費者處理產品訊息的程度；在高涉入之下，當多數/ 少數訊息來源與判斷產品的品質相關時，就會被視為是核心論點之一，並會偏誤對所有核心論點的處理。本文為首先提出整合架構，解釋多數/ 少數效果在低中高三種涉入程度下以不同機制影響產品判斷的研究。This study investigates the majority/minority effects on product attitudes with involvement and source relevance as moderators. We posit that the majority/minority source can play different roles affecting product judgments at different involvement levels. It can serve as a peripheral cue directly influencing product attitudes under low involvement; it can alter the processing amount under moderate involvement; finally, it can serve as a central argument and bias processing if it is perceived as relevant to judging the true quality of the target product under high involvement. The current study is the first to provide an integrated framework to explain the different mechanisms by which the majority/minority may influence product judgments under three involvement levels (low, moderate, and high)

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The N-terminus of porcine circovirus type 2 replication protein is required for nuclear localization and ori binding activities

Porcine circovirus type 2 possesses a circular, single-stranded DNA genome that requires the replication protein (Rep) for virus replication. To characterize the DNA binding potential and the significant region that confers the nuclear localization of the Rep protein, the defined coding regions of rep gene were cloned and expressed. All of the recombinant proteins except for the N-terminal 110 residues deletion mutant could bind to the double-stranded minimal binding site of replication origin (ori). In addition, the N-terminal deletion mutant lacking 110 residues exhibited mainly cytoplasmic staining in the transfected cells in contrast to the others, which localized dominantly in the nucleus, suggesting that this N-terminal domain is essential for nuclear localization. Furthermore, a series of green fluorescence proteins (GFP) containing potential nuclear localization signal (NLS) sequences were tested for their Cellular distribution. The ability of the utmost 20 residues of the N-terminal region to target the GFP to the nucleus confirmed its role as a functional NLS. (C) 2009 Elsevier Inc. All rights reserved