▁a ▁new ▁moon ▁around ▁the ▁opposite ▁node . ▁ ▁In ▁fol kl ore ▁and ▁tradition ▁ ▁Full ▁mo ons ▁are ▁tradition ally ▁associated ▁with ▁ins om nia ▁( in ability ▁to ▁sleep ), ▁ins an ity ▁( h ence ▁the ▁terms ▁lun acy ▁and ▁lun atic ) ▁and ▁various ▁" mag ical ▁phen omena " ▁such ▁as ▁ly can th ropy . ▁Psych olog ists , ▁however , ▁have ▁found ▁that ▁there ▁is ▁no ▁strong ▁evidence ▁for ▁effects ▁on ▁human ▁behavior ▁around ▁the ▁time ▁of ▁a ▁full ▁moon . ▁They ▁find ▁that ▁studies ▁are ▁generally ▁not ▁consistent , ▁with ▁some ▁showing ▁a ▁positive ▁effect ▁and ▁others ▁showing ▁a ▁negative ▁effect . ▁In ▁one ▁instance , ▁the ▁ 2 3 ▁December ▁ 2 0 0 0 ▁issue ▁of ▁the ▁British ▁Medical ▁Journal ▁published ▁two ▁studies ▁on ▁dog ▁b ite ▁ad mission ▁to ▁hosp it als ▁in ▁England ▁and ▁Australia . ▁The ▁study ▁of ▁the ▁Brad ford ▁Royal ▁Inf irm ary ▁found ▁that ▁dog ▁bit es ▁were ▁twice ▁as ▁common ▁during ▁a ▁full ▁moon , ▁whereas ▁the ▁study ▁conducted ▁by ▁the ▁public ▁hosp it als ▁in ▁Australia ▁found ▁that ▁they ▁were ▁less ▁likely . ▁ ▁Full ▁moon ▁names ▁Histor ically , ▁month ▁names ▁are ▁names ▁of ▁mo ons ▁( l un ations , ▁not ▁necessarily ▁full ▁mo ons ) ▁in ▁lun is olar ▁cal end ars . ▁Since ▁the ▁introduction ▁of ▁the ▁solar ▁Julian ▁calendar ▁in ▁the ▁Roman ▁Empire , ▁and ▁later ▁the ▁Greg or ian ▁calendar ▁world wide , ▁people ▁no ▁longer ▁perce ive