本研究欲探討在Line傳送問候圖和收到回覆的比率是否能預測銀髮族主觀社會連結感和寂寞感。綜觀過去研究，隨著年齡增長，銀髮族的生活圈逐漸限縮至家庭或個人，維持聯繫的社交互動對象數量減少，導致出現社會連結感降低與寂寞感增加的問題。不過，隨著網路科技興起，銀髮族能夠透過社群媒體等數位科技和親朋好友聯繫，有效增加主觀知覺的社會連結感並降低寂寞感。因此，本研究假設：銀髮族在Line上傳送問候圖的頻率和收到回應比率可以預測其主觀社會連結感和寂寞感。本研究共進行兩個子研究，研究一以問卷調查法，請受試者填寫每週傳送問候圖頻率、收到回覆比率、社會連結感量表及寂寞感量表，以線性迴歸了解各個變項間的因果關係。研究結果顯示，傳送問候圖的頻率無法預測主觀社會連結感與寂寞感，收到回覆的比率無法預測主觀社會連結感，但可以預測寂寞感。研究二以深度訪談法進一步瞭解銀髮族傳送問候圖的對象、對於是否被回覆的在意程度、對社會嘲弄傳送「長輩圖」的看法，以及傳送問候圖是否影響自身的社會連結感和寂寞感。結果發現，參與本研究的銀髮族傳送問候圖的對象以同年齡層的同學、朋友為主；他們大多不在意接收者是否回覆，若一直未收到回覆，比起生氣、難過的負面情緒，更多的是擔憂對方是否發生什麼狀況；受訪者多數表示不在意問候圖被嘲弄是「長輩圖」的現象，有些參與者認為自己不會是被嘲弄的對象，有些則只單純專注於傳圖行為的問候目的，所以不在意外在評價；整體而言，銀髮族透過Line傳送問候圖可以增進雙方的互動關係，增強主觀社會連結感，但不影響寂寞感。

The study aimed to understand the relationships among the use behavior of the elderly in sending greeting pictures, the ratio of the receivers’ responses, and older adults’ subjective social connectedness and loneliness. In study 1, the researcher used the survey to collect the data on older adults’ use behavior of sending greeting pictures, the ratio of the responses from the receivers, the degree of social connectedness and loneliness, and then used regression analysis to analyze the data. The result revealed that the frequency of sending greeting images could not predict the degree of social connectedness and loneliness. Also, the ratio of the responses could not predict the degree of social connectedness, but loneliness. In study 2, the researcher held in-depth interviews to learn more about the emotions and feelings of sending greeting pictures and receiving responses. The researcher also wanted to know whether sending greeting pictures would affect social connectedness and loneliness. The study results showed that the interviewees would not have negative emotions if they did not receive responses. They would only worry if the person does not respond to the message for a long time. They would worry if something bad happened to s/he. They also believe that sending greeting pictures would improve their social connectedness, but not loneliness.

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