Chasing perception in domestic cats and dogs

Animal Cognition - Chasing motion is often used to study the perception of inanimate objects as animate. When chasing interaction and independent motions between two agents are displayed...     

Attitudes toward empathy in domestic dogs and cats

This exploratory study included 524 undergraduate students (360 women, M age = 21.1 yr., SD = 6.1; and 164 men, M age = 20.0 yr., SD = 3.6) enrolled in introductory psychology sections who completed the Empathy in Pet Dogs and Cats Scale to assess their attitudes regarding how much domestic dogs and cats show vicarious experiencing of the thoughts, feelings, or attitudes of their owners. A principal components analysis followed by varimax rotation extracted five factors accounting for 60.85% of the total variance as follows: (1) Pets' empathy for owner, (2) Cats' empathy for owner, (3) Dogs' empathy for owner, (4) Souls in humans and pets, (5) Owners' empathy for pets. Women gave significantly higher ratings than men regarding dogs' and cats' knowing when their owners are happy, sad, or angry. Women also gave significantly higher ratings than men regarding dogs' and cats' feeling love and compassion for their owners. Specific instances of empathy in pets underscore the need for contemporary research to be inclusive of operational definitions of measures of empathy.     

Vocal recognition of owners by domestic cats (Felis catus)

Domestic cats have had a 10,000-year history of cohabitation with humans and seem to have the ability to communicate with humans. However, this has not been widely examined. We studied 20 domestic cats to investigate whether they could recognize their owners by using voices that called out the subjects’ names, with a habituation–dishabituation method. While the owner was out of the cat’s sight, we played three different strangers’ voices serially, followed by the owner’s voice. We recorded the cat’s reactions to the voices and categorized them into six behavioral categories. In addition, ten naive raters rated the cats’ response magnitudes. The cats responded to human voices not by communicative behavior (vocalization and tail movement), but by orienting behavior (ear movement and head movement). This tendency did not change even when they were called by their owners. Of the 20 cats, 15 demonstrated a lower response magnitude to the third voice than to the first voice. These habituated cats showed a significant rebound in response to the subsequent presentation of their owners’ voices. This result indicates that cats are able to use vocal cues alone to distinguish between humans.     

Flexible search behavior in domestic cats (Felis catus): a case study of predator-prey interaction

Domestic cats (Felis catus) were administered an object permanence task in a novel and a familiar situation to investigate flexibility (i.e., pause behavior and searching by following a path opposite of that taken by the object when it disappeared) in search behavior. Pause and opposite search were assumed to be independent, equiprobable, and randomly exhibited (i.e., random model). The random model predicted that cats would exhibit flexible behavior on 75% of the trials. The results revealed that flexible behavior occurred on 69% of the trials in the novel situation, but only on 52% of the trials in the familiar setting in which pauses were less frequent and shorter than in the novel situation. Thus, the random model provided a good fit of the data in the novel but not in the familiar situation. It is argued that pause and opposite search reflect decision processes when cats are dealing with the behavior of prey that has disappeared while being pursued.     

Perceptual and acoustic evidence for species-level differences in meow vocalizations by domestic cats (Felis catus) and African wild cats (Felis silvestris lybica)

To test for possible anthropogenic selection effects on meows in domestic felids, vocalizations by domestic cats (Felis catus) were compared with cries by their closest wild relative, the African wild cat (Felis silvestris lybica). Comparisons included analysis of acoustic characteristics and perceptual studies with human (Homo sapiens) listeners. The perceptual studies obtained human listener ratings of call pleasantness. Both the acoustic and perceptual comparisons revealed clear species-level differences: The domestic cat meows were significantly shorter in mean duration than the wild cat meows, showed higher mean formant frequencies, and exhibited higher mean fundamental frequencies. Human listeners at all levels of experience and affinity for cats rated domestic cat meows as far more pleasant sounding than wild cat vocalizations. These results are consistent with a model of cat domestication that posits selective pressure on meows based on human perceptual biases.     

Tonguedness in cats

The present study describes a preferential tongue movement in cats, suggesting a so-called "tonguedness" also in animals. 8 cats (66.7%) showed right-tonguedness and 3 left-tonguedness.     

从传统现实人格到现代理想人格

经济、社会的发展 ,离不开人的发展 ,而人的发展的最终目标乃是造就高尚健全的人格。上个世纪初的文化“启蒙” ,即所谓“改革国民性”的任务 ,就是为了追求这一目标。一百年来 ,传统社会的外部形态起了巨变 ,然而“国民性格”的改造并未取得长足进展。面向新世纪 ,启蒙的任务更加紧迫了。但是今天 ,我们的国家 ,正处于历史上的最好时期 ,有良好的内部外部条件 ,因此我们相信 :在物质经济迅速发展的基础上 ,通过国家领导、人文学者、广大民众举国上下的一致努力 ,在新世纪一定能完成“国民性”改造任务 ,实现全体国民从传统现实人格向现代理想人格的转化 ,从而实现从传统到现代的社会转型 ,最终成为名副其实的现代化国家。     

Fundamental Questions in Personality

The network perspective represents a novel contribution to personality theory by conceptualising personality traits as emerging from the mutual dependencies between fundamental and causal affective, behavioural, and cognitive components. We argue that incorporating a more nuanced biological and developmental perspective to causality and a more precise approach to affective, behavioural, cognitive and motivational components may serve to enrich the network perspective. Although the graphical approach to modelling personality is aesthetically pleasing, analytic techniques are not yet available to put network models to the (quantitative) test. Copyright © 2012 John Wiley & Sons, Ltd.     

中国人幸福人格的结构与内涵

幸福人格是影响个体幸福感的重要人格特质。为了探索中国人幸福人格的结构和内涵,研究基于人格的词汇学假设,从以往研究者编制人格测验使用的初始词汇表中,筛选出225个与幸福感有关的人格词语。通过探索性因素分析和验证性因素分析,最终得到49个幸福人格词语。因素分析结果显示：中国人的幸福人格包含胆识、美德、乐观三个维度。以Campbell幸福感量表、主观幸福感量表和中国大五人格问卷简式版为效标的分析结果表明,幸福人格各维度得分可有效预测幸福感。     

Readability of Three Adult Personality Tests: Basic Personality Inventory,Jackson Personality Inventory,and Personality Research Form-E

Three personality tests, the Basic Personality Inventory (BPI), the Jackson Personality Inventory (JPI), and the Personality Research Form-E (PRF-E) were evaluated for readability using a number of indices. Sentence length, word length, sentence type, and four readability formulas indicated that the readability of the BPI, JPI, and PRF-E would not impede the administration or interpretation of these tests in broad segments of the population.     

Equilibria in Personality States: A Conceptual Primer for Dynamics in Personality States

We provide a basic, step-by-step introduction to the core concepts and mathematical fundamentals of dynamic systems modelling through applying the Change as Outcome model, a simple dynamical systems model, to personality state data. This model characterizes changes in personality states with respect to equilibrium points, estimating attractors and their strength in time series data. Using data from the Personality and Interpersonal Roles study, we find that mean state is highly correlated with attractor position but weakly correlated with attractor strength, suggesting strength provides added information not captured by summaries of the distribution. We then discuss how taking a dynamic systems approach to personality states also entails a theoretical shift. Instead of emphasizing partitioning trait and state variance, dynamic systems analyses of personality states emphasize characterizing patterns generated by mutual, ongoing interactions. Change as Outcome modelling also allows for estimating nuanced effects of personality development after significant life changes, separating effects on characteristic states after the significant change and how strongly she or he is drawn towards those states (an aspect of resiliency). Estimating this model demonstrates core dynamics principles and provides quantitative grounding for measures of ‘repulsive’ personality states and ‘ambivert’ personality structures. © 2020 European Association of Personality Psychology     

Personality, Personality Disorders, and Defense Mechanisms

The prototype approach was used to assess the presence of personality features associated with borderline, narcissistic, histrionic, and psychopathic personality syndromes in a sample of 91 young adults from the Block and Block (1980) longitudinal study. These personality prototypes were found to be related to the use of denial and projection, and especially to the immature manifestations of those defenses, in ways consistent with theory.     

Age-Related Personality Differences in Inpatients with Personality Disorder: A Cross-Sectional Study

There are few empirical studies of age-associated differences in personality characteristics of individuals diagnosed with Personality Disorder (PD), and none that comparatively examine multiple personality characteristics, with a variety of psychological measures, across a wide age range in adults diagnosed with PD and coexisting substance abuse. Personality test data of 392 psychiatric inpatients diagnosed with PD were analyzed by age group. Patients were assessed with the California Psychological Inventory, Psychological Inventory of Personality and Symptoms, Diagnostic Inventory of Personality and Symptoms, Minnesota Multiphasic Personality Inventory-1, and the Millon Clinical Multiaxial Inventory-1. There were no age differences in the number of patients diagnosed with PD, but older adults were significantly less likely to be diagnosed with more than one PD. Older patients with PD were significantly less impulsive, paranoid, high-energy, antisocial, and irresponsible than younger patients with PD. It appears that, with aging, there is a general mellowing of personality for those diagnosed with PD, which may be related to the proposed geriatric variants of PD.