Neurobiology of social attachments.
Many types of social attachments can be observed in nature. We discuss the neurobiology of two types (1) intraspecific (with a partner) and (2) parental (with the offspring). Stimuli related to copulation facilitate the first, whereas pregnancy, parturition and lactation facilitate the second. Both types develop as consequence of cohabitation. These events seem to stimulate similar neural pathways that increase (1) social recognition, (2) motivation, reward; and (3) decrease fear/anxiety. Subregions of the amygdala and cortex facilitate social recognition and also disinhibition to decrease rejection responses. The interrelationship between MeA, BNST, LS may mediate the activation of NAcc via the mPOA to increase motivation and reward. Cortical areas such as the ACC discriminate between stimuli. The interaction between OT and D2-type receptors in NAcc shell facilitates intraspecific attachment, but D1-type appears to facilitate parental attachment. This difference may be important for maternal females to direct their attention, motivation and expression of attachment toward the appropriate target.
Centro de Investigaciones Cerebrales, Universidad Veracruzana, Xalapa, VER, Mexico; Cuerpo Académico Neurociencias UV-CA-28, Universidad Veracruzana, Mexico. Electronic address: gcoria@uv.mx.
Genaro A
GA
Coria-Avila
Centro de Investigaciones Cerebrales, Universidad Veracruzana, Xalapa, VER, Mexico; Cuerpo Académico Neurociencias UV-CA-28, Universidad Veracruzana, Mexico.
Jorge
J
Manzo
Centro de Investigaciones Cerebrales, Universidad Veracruzana, Xalapa, VER, Mexico; Cuerpo Académico Neurociencias UV-CA-28, Universidad Veracruzana, Mexico.
Luis I
LI
Garcia
Cuerpo Académico Neurociencias UV-CA-28, Universidad Veracruzana, Mexico.
Porfirio
P
Carrillo
Universidad Jaume I, Castellon, Spain.
Marta
M
Miquel
Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada.
James G
JG
Pfaus
D000818:Animals; D001921:Brain / Q000502:physiology*; D005260:Female; D006801:Humans; D009042:Motivation / Q000502:physiology*; D009434:Neural Pathways / Q000502:physiology*; D009769:Object Attachment; D011247:Pregnancy; D021641:Recognition, Psychology / Q000502:physiology*; D012201:Reward; D012919:Social Behavior
Attachment; Bonding; Dopamine; Learning; Love; Oxytocin; Partner preference; Sex