Effects of fornix transection on spontaneous and trained non-matching by monkeys

Three monkeys with fornix transection and three normal control monkeys performed a series of tasks which were variations of delayed non-matching. Experiment 1 showed that even at short retention intervals fornix transection impaired the spontaneous tendency to explore novel objects. Experiment 2 provided differential reward for non-matching and showed that the fornix-transected monkeys learned and performed non-matching normally even though the sample-match retention intervals were long throughout the experiment. Experiment 3 showed that non-matching performance was transiently more disrupted in fornix-transected than in normal monkeys when the testing procedure was changed, in a variety of ways, while maintaining the basic non-match rule. Experiment 4 required the monkeys to discriminate objects they had displaced from objects they had seen but not displaced; fornix transection produced in this task a substantial and stable impairment. These four experiments require a revised interpretation of the effects of fornix transection upon recognition memory and exploration. Particularly they contradict the hypothesis, suggested by previous experiments, that fornix transection produces a defect in discrimination of stimulus familiarity in long-term but not in short-term memory. They suggest rather that fornix transection impairs memory of instrumental responses.     

The experiences of person-centred counsellors working with suicidal clients online through the medium of text

ABSTRACT

In this study, we attempt to provide an understanding of the experiences of four UK-based person-centred counsellors working with suicidal clients online using text-based therapies and the impact of their clients’ suicidal ideation upon their “way of being”. The counsellors were selected purposively; each was working as a person-centred counsellor online, was encountering suicidal ideation in their clients, and was a member of a professional organisation. A narrative approach was taken, using unstructured interviews and a stanza format of representation. We found that participants had developed a way of being online that may be distinct from their in-person practice. Challenges included being more directive, lacking physical presence, lacking confidence in assessing risk and questions about empathic understanding. Working online with risk raises specific challenges for person-centred practitioners in line with what is indicated in the little relevant research currently already available.