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link to source

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detrimental cognitive functions and mood/affective states

This distraction is disadvantageous to subsequent cognitive tasks, creating more errors as the distraction period increases, and this is particularly evident in classroom settings.

empirical evidence showed that students who used their phones in class took fewer notes [7] and had poorer overall academic performance, compared to those who did not [8,9]

Further, smartphone presence also increases cognitive load, because greater cognitive effort is required to inhibit distractions.

Prior studies have demonstrated the detrimental effects of one’s smartphone on cognitive function (e.g. working memory [13], visual spatial search [12], attention [11]), and decreased cognitive ability with increasing attachment to one’s phone [14,16,26]

Participants also reported having frequent thoughts about their smartphones, despite their device being out of sight briefly (kept in bags or pockets), to the point of disrupting their task performance [13]. (induces anxiety)

more errors in work performance

****our results were consistent with prior studies [11–13] in that participants had lower accuracy when their smartphone was next to them (HS) and higher accuracy when separated from their smartphones (LS).

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Analyzing what students are using the phone for; link