Safety Behavior After Extinction Triggers a Return of Threat Expectancy

Safety behavior is involved in the maintenance of anxiety disorders, presumably because it prevents the violation of negative expectancies. Recent research showed that safety behavior is resistant to fear extinction. This fear conditioning study investigated whether safety behavior after fear extinction triggers a return of fear in healthy participants. Participants learned that two stimuli (A and C) were followed by an aversive loud noise (“threat”), and one stimulus (B) was not. Participants then learned to use safety behavior that prevented the loud noise. Next, A and C were no longer followed by the loud noise, which typically led to extinction of threat expectancy. Safety behavior then became available again for C, but not for A and B. All participants used safety behavior on these C trials. In a final test phase, A, B, and C were presented once without the availability to use safety behavior. At each stimulus presentation, participants rated threat expectancy by indicating to what extent they expected that the loud noise would follow. Compared with the last extinction trial, threat expectancy increased for C in the test phase, whereas it did not increase for A and B. Hence, safety behavior after the extinction of classically conditioned fear caused a partial return of fear. The findings suggest that safety behavior may be involved in relapse after exposure-based therapy for anxiety disorders.     

Angels: a bridge to a spiritual pedagogy?

This article is the result of an Early Childhood Care and Education undergraduate pilot project through a university on the West Coast of Canada. It weaves together poststructural interpretations and a hermeneutic phenomenological recounting of an experience of inquiring about angels with young children. The angel inquiry became a point of entry into a holistic spiritual pedagogy that attends to the whole of a matter, while also paying attention to the significance of each part. Contributing to the interpretations made in this study is Ted Aoki’s philosophy of the space between where the planned curriculum and the lived curriculum (or lived experiences) meet in a third and overlapping tensional space; Max van Manen’s emphasis on lived experiences as ‘breathing meaning’ also contribute to the choices and interpretations made. Blended through the study are the understandings of Tobin Hart and Kate Adams from their investigations of children’s lived experiences with mystical unseen worlds. The area of invisible mystery proves to be more delicate to negotiate than the world of physical embodiments and the world of complete fantasy of the mind; this is the area of the spiritual – the meeting of body and mind with a third and overlapping space. This space goes by many names and many definitions, but ultimately remains indefinable and intangible. But during the pilot project, meaning did come through the inquiring and through the themes that emerged of ‘who we are’ in relation to angels; race, gender and the role of nurturer; and familial angel ownership. Children yearn for allowing spaces to safely express these ideas about, and experiences with, mystery worlds. It is the connection with the inner life through small moments and engagements with the big life questions that the entangling of the physical, the mental and the spiritual creates the intuitive, integrated heart space of a holistic spiritual pedagogy.     

Serial position effects in implicit memory for multiple-digit numbers

Serial position effects in implicit and explicit memory were investigated in a short-term memory task. A study list composed of four, spatially distributed, two-digit numbers was presented, followed by an item recognition task (explicit test) and an implicit memory task in which participants were asked to verify a simple addition equation where the presented answer was either primed or not primed by one of the number pairs in the study list. Similar serial position effects were observed in explicit and implicit memory, with faster response times for correct decisions on the first than on the later list positions. The presence of a primacy effect but no recency effect is consistent with previous studies of explicit memory with visual presentation. The results suggest that similar principles of temporal information processing govern priming and episodic short-term memory.     

Dichotic listening with forced attention in patients with temporal lobe epilepsy: significance of left hemisphere cognitive dysfunction

Fifty right-handed patients with focal temporal lobe epilepsy were administered a dichotic listening test with consonant-vowel syllables under non-forced, forced right and forced left attention conditions, and a neuropsychological test battery. Dichotic listening performance was compared in subgroups with and without left hemisphere cognitive dysfunction, measured by the test battery, and in subgroups with left and right temporal epileptic focus. Left hemisphere cognitive dysfunction led to more correct responses to left ear stimuli in all three attention conditions, and fewer correct responses to right ear stimuli in the non-forced attention condition. This was probably caused by basic left hemisphere perceptual dysfunction. Dichotic listening was less affected by a left-sided epileptic focus than by left hemisphere cognitive dysfunction. General cognitive functioning influenced dichotic listening performance stronger in forced than in non-forced attention conditions. Larger cerebral networks were probably involved in the forced attention conditions due to the emphasis on conscious effort.     

Decreased approach motivation in depression

The present study examined relations between choice preference and reaction time to emotionally valenced words, dysphoric symptoms (BDI), and dysfunctional attitudes (DAS) in clinically depressed (CD; n= 61), previously depressed (PD; n= 42), and never depressed controls (ND; n= 46). The results showed: (1) NDs and PDs exhibited a choice preference for the relatively more positive words and differed significantly from CDs; (2) PDs and CDs exhibited longer reaction time and differed significantly from NDs; and (3) BDI and DAS were positively associated with reaction time to positively valenced words, whereas no associations were found for reaction time to negatively valenced words. The increased reaction time, in PDs and CDs, is discussed as a possible vulnerability factor to depression, which may be related to decreased approach motivation.