Cacioppo's earlier research says people have different (baseline) levels of loneliness, meaning some people have a greater need than others for social (connection). From that perspective, it follows that someone who is highly (sensitive) to disconnection would more strongly promote lonely feelings in the network, he said. Both lonely and nonlonely people prefer (nonlonely) people, and sometimes the lonely are even harsher to others who feel (disconnected) than the nonlonely people. This helps leave the lonely people with fewer friends, Cacioppo said. In the social network study, mood did not (affect) how loneliness was transmitted, he said. Participants were asked how depressed they were, and this did not seem to affect whether they (passed) loneliness along the network.
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