Study 2 examined first-year college students’ growth trajectories in positive and negative affect across the transition to college (i.e., spanning the entire first semester), predicted said trajectories and daily affective states. Participants were 146 first-year college students from a large southwestern university entering their first semester of college (Mage = 17.8, SD = 0.5). Electronic diary surveys were administered to students twice weekly between July and December of 2014, so as to span the transition to college and the entire first semester, and assessed daily affective states and interpersonal interactions. Results indicated that students decreased in their positive affect gradually across the first semester, but remained stable in their negative affect. Significant variability emerged around these average trends, and was predicted by indices of conflict and involvement with parents and friends. Generally, greater involvement with friends and parents was associated with greater positive and less negative affect, whereas greater conflict with these important social groups predicted greater negative affect. Together, these studies underscore the importance of positive attachments during developmentally-challenging contexts experienced in adolescence.
Adolescence is a sensitive period for the development of romantic relationships. During this period the maturation of frontolimbic networks is particularly important for the capacity to regulate emotional experiences. In previous research, both functional magnetic resonance imaging (fMRI) and dense array electroencephalography (dEEG) measures have suggested that responses in limbic regions are enhanced in adolescents experiencing social rejection. In the present research, we examined social acceptance and rejection from romantic partners as they engaged in a Chatroom Interact Task. Dual 128-channel dEEG systems were used to record neural responses to acceptance and rejection from both adolescent romantic partners and unfamiliar peers (N = 75). We employed a two-step temporal principal component analysis (PCA) and spatial independent component analysis (ICA) approach to statistically identify the neural components related to social feedback. Results revealed that the early (288 ms) discrimination between acceptance and rejection reflected by the P3a component was significant for the romantic partner but not the unfamiliar peer. In contrast, the later (364 ms) P3b component discriminated between acceptance and rejection for both partners and peers. The two-step approach (PCA then ICA) was better able than either PCA or ICA alone in separating these components of the brain's electrical activity that reflected both temporal and spatial phases of the brain's processing of social feedback.