a threatening parent (A4). Crittenden's ideas developed from Bowlby's proposal that "given certain adverse circumstances during childhood, the selective exclusion of information of certain sorts may be adaptive. Yet, when during adolescence and adulthood the situation changes, the persistent exclusion of the same forms of information may become maladaptive". Crittenden proposed that the basic components of human experience of danger are two kinds of information: 'Affective information' – the emotions provoked by the potential for danger, such as anger or fear. Crittenden terms this "affective information". In childhood this information would include emotions provoked by the unexplained absence of an attachment figure. Where an infant is faced with insensitive or rejecting parenting, one strategy for maintaining the availability of their attachment figure is to try to exclude from consciousness or from expressed behaviour any emotional information that might result in rejection. Causal or other sequentially ordered knowledge about the potential for safety or danger. In childhood this would include knowledge regarding the behaviours that indicate an attachment figure's availability as a secure haven. If knowledge regarding the behaviours that indicate an attachment figure's availability as a secure haven is subject to segregation, then the infant can try to keep the attention of their caregiver through clingy or aggressive behaviour, or alternating combinations of the two. Such behaviour may increase the availability of an attachment figure who otherwise displays inconsistent or misleading responses to the infant's attachment behaviours, suggesting the unreliability of protection and safety. Crittenden proposes that both kinds of information can be split off from consciousness or behavioural expression as a 'strategy' to maintain the availability of an attachment figure (See section above on Disorganized/disoriented attachment for distinction of "Types"): "Type A strategies were hypothesized to be based on reducing perception of threat to reduce the disposition to respond. Type C was hypothesized to be based on heightening perception of threat to increase the disposition to respond." Type A strategies split off emotional information about feeling threatened and type C strategies split off temporally-sequenced knowledge about how and why the attachment figure is available. By contrast, type B strategies effectively utilize both kinds of information without much distortion. For example: a toddler may have come to depend upon a type C strategy of tantrums in working to maintain the availability of an attachment figure whose inconsistent availability has led the child to distrust or distort causal information about their