Octopuses (Octopus bimaculoides) and cuttlefishes (Sepia pharaonis, S. officinalis) can conditionally discriminate

In complex navigation using landmarks, an animal must discriminate between potential cues and show context (condition) sensitivity. Such conditional discrimination is considered a form of complex learning and has been associated primarily with vertebrates. We tested the hypothesis that octopuses and cuttlefish are capable of conditional discrimination. Subjects were trained in two maze configurations (the conditions) in which they were required to select one of two particular escape routes within each maze (the discrimination). Conditional discrimination could be demonstrated by selecting the correct escape route in each maze. Six of ten mud-flat octopuses (Octopus bimaculoides), 6 of 13 pharaoh cuttlefish (Sepia pharaonis), and one of four common cuttlefish (S. officinalis) demonstrated conditional discrimination by successfully solving both mazes. These experiments demonstrate that cephalopods are capable of conditional discrimination and extend the limits of invertebrate complex learning.     

Adolescent Suicidal Ideation Subgroups and their Association with Suicidal Plans and Attempts in Young Adulthood

Suicidal ideation during adolescence is quite common. Longitudinal ideation patterns may predict adolescents at greatest risk of progressing to more serious suicidal behaviors. We enumerated suicidal ideation trajectory subgroups and estimated subgroup association with later suicidal plans and attempts using data collected across a 13‐year period from 552 Caucasian adolescents. Three subgroups were found: non‐ideators (no ideation), decreasers (ideation decreased), and increasers (ideation persisted or increased). Probability of planning a suicide was greatest among increasers (females: .54, males: 51, p < .01). Probability of attempting suicide was greatest among male decreasers (.36, p < .01) and female increasers (.25, p < .01).     

Biobanks and Individual Health Related Findings: from an Obstacle to an Incentive

Science and Engineering Ethics - This paper explores the gray area of questionable research practices (QRPs) between responsible conduct of research and severe research misconduct in the form of...     

Fonagy and Freud. Psychological versus psychic reality

Peter Fonagy and Mary Target present their Playing with reality theory as a developmental theory centred on the concept of psychic reality. This paper compares Fonagy and Target's use of the concept of psychic reality with Freud's original concept. It is argued that the concept of psychic reality has been redefined from delineating a psychic reality stemming from the unconscious to denoting a kind of conscious or preconscious psychological reality characterized by an experience of equality between the internal and the external worlds. The theoretical discussion is illustrated by being applied to eating disorder pathology, which by Fonagy and colleagues is described as associated with thought processes characterized by psychic reality.     

Analogical Reasoning in Handling Emerging Technologies: The Case of Umbilical Cord Blood Biobanking

How are we individually and as a society to handle new and emerging technologies? This challenging question underlies much of the bioethical debates of modern times. To address this question we need suitable conceptions of the new technology and ways of identifying its proper management and regulation. To establish conceptions and to find ways to handle emerging technologies we tend to use analogies extensively. The aim of this article is to investigate the role that analogies play or may play in the processes of understanding and managing new technology. More precisely we aim to unveil the role of analogies as analytical devices in exploring the “being” of the new technology as well the normative function of analogies in conceptualizing the characteristics and applications of new technology. Umbilical cord blood biobanking will be used as a case to investigate these roles and functions.