People are hap­piest in warm weather, but grow con­sid­er­ably unhap­pier as humidity levels rise, according to an analysis of the lan­guage of some 1.3 bil­lion tweets by North­eastern Uni­ver­sity com­puter sci­ence PhD can­di­date Aniko Hannah.

We can pre­dict people’s moods with 80 per­cent accu­racy using this data,” Hannah said.

Her research was on dis­play in the Curry Stu­dent Center ball­room last Thursday as part of the first event spon­sored by the new Affec­tive Sci­ence Insti­tute (ASI) at North­eastern. ASI will be a nexus for col­lab­o­ra­tion, training and the exchange of ideas between researchers and scholars who study emo­tion and related fields in the New Eng­land area.

Dis­tin­guished Pro­fessor of Psy­chology Lisa Feldman Bar­rett gave an overview of the insti­tute to roughly 100 scholars and researchers from more than a dozen uni­ver­si­ties and med­ical insti­tu­tions who filled the Fenway Center prior to the poster session.

Bar­rett is the codi­rector of the Inter­dis­ci­pli­nary Affec­tive Sci­ence Lab­o­ra­tory at North­eastern, which studies how emo­tions func­tion in the mind by using expe­ri­en­tial, behav­ioral, psy­chophys­i­o­log­ical and brain-​​imaging methods.

Under­standing affect, she said, can play an impor­tant role in solving global chal­lenges in health, secu­rity and sus­tain­ability, which are areas of research focus at Northeastern.

Affect is a ubiq­ui­tous aspect of everyday human life, whether we are making small choices, such as what to have for lunch, or big choices, such as whether we should get screened for cancer,” Bar­rett explained.

At the poster ses­sion, Vera Vine, a clin­ical psy­chology PhD can­di­date in the Reg­u­la­tion of Emo­tion and Anx­iety Dis­or­ders Lab at Yale Uni­ver­sity, show­cased her research on the rela­tion­ship between emo­tional clarity and affect intensity.

A patient’s inability to express her emo­tions clearly may lead to stronger bouts of depres­sion and other dis­or­ders, Vine said. As she put it, “Patients need to figure out what their emo­tions are and how to deal with them.”

Vine expressed interest in playing a role in the suc­cess of the insti­tute. “It’s an exciting oppor­tu­nity to be in an inti­mate set­ting with renowned scholars,” she said. “I want to ben­efit from the col­lab­o­ra­tions and then try to give some­thing back.”