Complex conditional control by pigeons in a continuous virtual environment

We tested two pigeons in a continuously streaming digital environment. Using animation software that constantly presented a dynamic, three‐dimensional (3D) environment, the animals were tested with a conditional object identification task. The correct object at a given time depended on the virtual context currently streaming in front of the pigeon. Pigeons were required to accurately peck correct target objects in the environment for food reward, while suppressing any pecks to intermixed distractor objects which delayed the next object's presentation. Experiment 1 established that the pigeons’ discrimination of two objects could be controlled by the surface material of the digital terrain. Experiment 2 established that the pigeons’ discrimination of four objects could be conjunctively controlled by both the surface material and topography of the streaming environment. These experiments indicate that pigeons can simultaneously process and use at least two context cues from a streaming environment to control their identification behavior of passing objects. These results add to the promise of testing interactive digital environments with animals to advance our understanding of cognition and behavior.     

W. R. D. FAIRBAIRN AND THE PROBLEM OF HOMOSEXUALITY: A STUDY IN PSYCHOANALYTIC PREJUDICE

W. R. D. Fairbairn believed that the psychoanalyst's motivations and theories must ultimately be rooted in a need to resolve personal conflicts. His self‐analytic and other records, now publicly available, indicate how his struggles with unacceptable sexual feelings and their symptomatic manifestations affected not only his theorizing, especially about sexuality, but also his clinical practice, as well as his personal and family life. Fairbairn's case affords a unique opportunity to document the effects of homophobia in a major psychoanalyst.     

Thoughts about the internalised speaking object: psychoanalytic psychotherapy with children of delayed verbal development

This paper discusses the meaningful effects of intensive psychoanalytic psychotherapy on language development in children with verbal delay or disorder. Three clinical cases of children aged five to seven are presented; two of these display significant verbal delay and one exhibits unusually high verbal abilities. Following Meltzer, the author explores the concept of the ‘internalised speaking object’ – a good object speaking to the child, which has been internalised. This internal model is essential for the child’s development of language and speech. At times, these children experience this internal object as a persecutory object which must be warded off and avoided. Even more so, when the external object addresses the children verbally, language itself becomes a persecutor and they experience a fear of disintegration. During such times, the therapist must find new and creative ways for communication. The author describes his therapeutic efforts in dealing with these difficulties which stem both from the lack of a reciprocal verbal communication and from the therapist becoming a persecutory object to the child, and demonstrates the manner in which he facilitated gradual shifts in the patient, from an anxious and defensive position into a more relaxed one. These efforts set in motion a process of internalisation of a speaking object by the child and the development of internal language, that is, thinking along with expressive verbal language. The article furnishes some evidence to support the idea that verbal development relies significantly on establishing good, strong and healthy early object relations.     

Degrees of entrapment: living and dying in the claustrum

This paper explores Donald Meltzer’s concept of the claustrum, an unconscious phantasy of a space inside the body of the internal mother that has been forcibly entered and occupied. The author proposes that claustrophobic phenomena might be viewed on a continuum from the relatively ordinary to the severely pathological. Following a brief review of the characteristics of Meltzer’s claustral ‘compartments’, this continuum is explored through and illustrated by a psychoanalytic understanding of two films, Coraline, directed by Henry Selick and based on the novella by Neil Gaiman, and The Talented Mr. Ripley, based on the novel by Patricia Highsmith and directed by Anthony Minghella. The degree of entrapment in a claustrophobic world and the possibility of emerging from it into a world of authentic intimate relationships is shown to be influenced by the internal relationship to a parental couple.     

Reversible phase transition in vanadium oxide films sputtered on metal substrates

Vanadium oxide films, deposited on aluminium (Al), titanium (Ti) and tantalum (Ta) metal substrates by pulsed RF magnetron sputtering at a working pressure of 1.5 x10^?2 mbar at room temperature are found to display mixed crystalline vanadium oxide phases viz., VO₂, V₂O₃, V₂O₅. The films have been characterized by field-emission scanning electron microscopy, X-ray diffraction, differential scanning calorimetry (DSC) and X-ray photoelectron spectroscopy, and their thermo-optical and electrical properties have been investigated. Studies of the deposited films by DSC have revealed a reversible-phase transition found in the temperature range of 45–49 °C.     

The exploratory and confirmatory factor analyses of two subjective career success instruments

This study investigated the psychometric properties of two subjective career success instruments within the South African context: Perceived Career Success (PCSS: Gattiker &; Larwood, 1986 Gattiker, U. E., &; Larwood, L. (1986). Subjective career success: A study of managers and support personnel. Journal of Business and Psychology, 1(2), 78–94. http://dx.doi.org/10.1007/BF01018805[Crossref] , [Google Scholar]) and Life Success Measures Scale (LSMS: Parker &; Chusmir, 1992 Parker, B., &; Chusmir, L. H. (1992). Development and validation of a life-success measures scale. Psychological Reports, 70(2), 627–637. http://dx.doi.org/10.2466/pr0.1992.70.2.627[Crossref], [Web of Science ®] , [Google Scholar]). Data were collected via a convenient sample of 708 South African Police Services (SAPS) personnel (females = 36.8%; Sotho language = 62.50%). Exploratory factor analysis (EFA) was conducted on both instruments, followed by confirmatory factor analyses (CFA). Both instruments showed acceptable construct validity and reliability of scores.     

多目标追踪中“线索”研究的贡献

多目标追踪范式是探讨动态情景下注意加工过程的成熟技术,其对不同阶段注意线索加工与利用的分析,对深入了解注意的动态信息加工过程具有重要意义。从注意线索的视角述评呈现阶段的内源性线索与外源性线索以及追踪阶段的目标数量动态变化和轨迹线索的研究成果及限制因素,提出多目标线索研究是客体档案理论与视觉索引理论之争的关键。虽然多目标追踪范式为内源性线索、外源性线索的提取与策略等研究提供很多便利,但目前该范式在线索的认知资源分配和加工策略上仍有研究留白,尚需进一步探索。     

Two Types of Quidditism

According to structuralism, all natural properties are individuated by their roles in causal/nomological structures. According to quidditism, at least some natural properties are individuated in some other way. Because these theses deal with the identities of natural properties, this distinction cuts to the core of a serious metaphysical dispute: Are the intrinsic natures of all natural properties essentially causal/nomological in character? I'll argue that the answer is ‘no’, or at least that this answer is more plausible than many critics of quidditism have recognized. In section 1, I distinguish between two versions of quidditism. Bare quidditism holds that worlds with distinct properties and isomorphic structures must be qualitatively identical in the following sense: inhabiting one world would be indistinguishable from inhabiting the other. In contrast, qualitative quidditism allows such worlds to have qualitative differences. In section 2, I discuss an epistemological position that allows us to better understand the sense in which isomorphic structures can be qualitatively distinct. In sections 3 and 4, I argue that qualitative quidditism fares much better than bare quidditism with respect to a number of well-known arguments in the field—both for quidditism and against it.     

Age and active navigation effects on episodic memory: A virtual reality study

We investigated the navigation‐related age effects on learning, proactive interference semantic clustering, recognition hits, and false recognitions in a naturalistic situation using a virtual apartment‐based task. We also examined the neuropsychological correlates (executive functioning [EF] and episodic memory) of navigation‐related age effects on memory. Younger and older adults either actively navigated or passively followed the computer‐guided tour of an apartment. The results indicated that active navigation increased recognition hits compared with passive navigation, but it did not influence other memory measures (learning, proactive interference, and semantic clustering) to a similar extent in either age group. Furthermore, active navigation helped to reduce false recognitions in younger adults but increased those made by older adults. This differential effect of active navigation for younger and older adults was accounted for by EF score. Like for the subject‐performed task effects, the effects from the navigation manipulation were well accounted for by item‐specific/relational processing distinction, and they were also consistent with a source monitoring deficit in older adults.