Metacognition in Humans and Animals

ABSTRACT— It has long been assumed that metacognition—thinking about one's own thoughts—is a uniquely human ability. Yet a decade of research suggests that, like humans, other animals can differentiate between what they know and what they do not know. They opt out of difficult trials; they avoid tests they are unlikely to answer correctly; and they make riskier "bets" when their memories are accurate than they do when their memories are inaccurate. These feats are simultaneously impressive and, by human standards, somewhat limited; new evidence suggests, however, that animals can generalize metacognitive judgments to new contexts and seek more information when they are unsure. Metacognition is intriguing, in part, because of parallels with self-reflection and conscious awareness. Consciousness appears to be consistent with, but not required by, the abilities animals have demonstrated thus far.     

Responsible Relationship: Imago Dei and the Moral Distinction between Humans and Other Animals

In light of modern evolutionary science, some theologians have criticized using the image of God to distinguish humans from other animals. This concept, however, still offers rich theological insight into the natures of both humans and other animals. Following the relational interpretations of Emil Brunner and Karl Barth, this article explores how the imago Dei may be used to distinguish human creatures without necessarily implying a division in kind between humans and other animal creatures. Humans are distinguished not by any superior abilities they might possess, but by the character of their relationship to God and other creatures.     

Scalar Timing in Animals and Humans

John Gibbon's lifetime work provided a deep understanding of the mechanisms whereby the time sense indexes the passage of time (its accumulation) and records, that is, stores, relevant time intervals in memory, enabling behavior to occur at the right time. The Scalar Expectancy Theory (SET; Gibbon, 1977) remains the most prominent of the theoretical accounts of animal and human timing. SET deals with the three principle psychophysical properties of timing data: flexible accuracy, multiplicative variance, and ratio comparisons. It differs from many other timing theories in its emphasis on scalar variability, a term that refers to the linear increase in the standard deviation of timing errors as a task's criterion time increases. Recently, research based on the conceptual framework and analytic tools of SET in John Gibbon's lab was expanded from a decades-long focus on nonhuman species to an assessment of timing performance in “normal” and brain-diseased human subjects, aimed at understanding the functional and neural mechanisms underlying interval timing in humans. This review is aimed at showing that animal and human data obtained with a variety of timing paradigms are both amenable to analyses of accuracy and scalar variability under the SET framework. In the second part of this report we discuss advances made in our understanding of neurobiological mechanisms underlying interval timing by taking advantage of the SET framework. Issues awaiting new theoretical developments in modeling time production and perception, as revealed by psychophysical findings of recent clinical research that are still not well understood (i.e., sources of nonscalar variability), are raised at the end.     

Killing Humans and killing Animals

It is one thing to say that the suffering of non‐human animals ought to be considered equally with the like suffering of humans; quite another to decide how the wrongness of killing non‐human animals compares with the wrongness of killing human beings. It is argued that while species makes no difference to the wrongness of killing, the possession of certain capacities, in particular the capacity to see oneself as a distinct entity with a future, does. It is claimed, however, that this is not the only factor to be taken into account: pleasant or happy life is in itself good. The application of these conclusions to killing animals for food is then considered, with some passing reflections on infanticide.     

Moral Agency in Other Animals

Some philosophers have argued that moral agency is characteristic of humans alone and that its absence from other animals justifies granting higher moral status to humans. However, human beings do not have a monopoly on moral agency, which admits of varying degrees and does not require mastery of moral principles. The view that all and only humans possess moral agency indicates our underestimation of the mental lives of other animals. Since many other animals are moral agents (to varying degrees), they are also subject to (limited) moral obligations, examples of which are provided in this paper. But, while moral agency is sufficient for significant moral status, it is by no means necessary.     

Contractarianism and Secondary Direct Moral Standing for Marginal Humans and Animals

It is commonly thought that neo-Hobbesian contractarianism cannot yield direct moral standing for marginal humans and animals. However, it has been argued that marginal humans and animals can have a form of direct moral standing under neo-Hobbesian contractarianism: secondary moral standing. I will argue that, even if such standing is direct, this account is unsatisfactory because it is counterintuitive and fragile.     

Health Is Associated With Antiparasite Behavior and Fear of Disease-Relevant Animals in Humans

Evolutionary arms races between humans and parasites resulted in a set of behavioral adaptations that serve as parasite-avoidance mechanisms. We investigated associations among reported health of the respondent, antiparasite behavior, and sensitivity to disgust and fear of disease-relevant and irrelevant animals. Ninety-seven participants (15–19 years old) rated their fear and disgust at 25 colorful pictures of disease-relevant and disease-irrelevant invertebrates. Consistent with previous work, we found that participants reported greater fear and disgust of disease-relevant invertebrates relative to disease-irrelevant invertebrates. Better perceived health correlated with lower fear of disease-relevant invertebrates. Sensitivity to disgust correlated with reported antiparasite behaviors. Contrary to expectations, we found a positive correlation between antiparasite behavior and reported health, which suggests that antiparasite behavior influences perceived health (but not vice versa), and we found that males perform more antiparasite behaviors than females. These results support the idea that disgust and fear of disease-relevant objects are adaptive emotions that prevent contact with contagious objects, especially in individuals with low perceived health.     

儿童对他人情绪与过去经验的关系的认知

用设置故事情景的方法对儿童对他人情绪与过去经验的关系的认知进行了实验研究。研究表明,4～7岁儿童能够认知他人情绪与过去经验的关系,认知能力随年龄的增长不断提高。情绪效价和情绪情景的匹配性影响儿童对他人情绪与过去经验关系的认知。4、5岁儿童更能认识到正性情绪情景条件下体验到负性情绪的他人情绪与过去经验的关系,其得分显著高于其它情绪情景故事和行为故事。     

Knowledge and Other Norms for Assertion,Action, and Belief: A Teleological Account

Here I advance a unified account of the structure of the epistemic normativity of assertion, action, and belief. According to my Teleological Account , all of these are epistemically successful just in case they fulfill the primary aim of knowledgeability, an aim which in turn generates a host of secondary epistemic norms. The central features of the Teleological Account are these: it is compact in its reliance on a single central explanatory posit, knowledge‐centered in its insistence that knowledge sets the fundamental epistemic norm, and yet fiercely pluralistic in its acknowledgment of the legitimacy and value of a rich range of epistemic norms distinct from knowledge. Largely in virtue of this pluralist character, I argue, the Teleological Account is far superior to extant knowledge‐centered accounts.     

On Boredom and Experimentation in Humans

This article discusses the ethical and methodological issues associated with boredom experienced by human participants during psychological experiments. Ways are suggested in which informed consent, briefing, and debriefing can be used to prevent or remedy boredom induced during experiments. We address methodological and ethical concerns, and we discuss the advantages of the proposed approach for experimenters' practice and training of undergraduate students. Future directions for much needed research on these topics are also emphasized.     

Dignity and Dissent in Humans and Non-humans

Science and Engineering Ethics - Is there a difference between human beings and those based on artificial intelligence (AI) that would affect their ability to be subjects of (human-like) dignity?...     

Retrospective and Prospective Memory Coding in Humans

The Psychological Record - In two experiments, memory coding strategies of adult humans were investigated. Retrospective coding is the storage and rehearsal of experienced material. Prospective...     

Preferences and Children's Use of Gender-Stereotyped Knowledge About Musical Instruments: Making Judgments About Other Children's Preferences

A developmental model of gender-stereotype acquisition (Martin, 1989) proposes that by the age of 8 years children draw upon information about gender-stereotyped interests as well as other children's sex when deciding how much other children would like different activities; younger children rely on sex only when making such decisions. We examined whether the judgments that children made about other children's preferences were different from those that they made about their own preferences for masculine and feminine musical instruments. Three hundred twelve children aged 8–9 years ranked 6 instruments in order of preference, and rated on a 4-point scale how much they would like to play each one. Children were then asked to decide how much other children would like to play each instrument. Only girls' own preferences for feminine instruments differed according to the gender-stereotyping of their most-preferred instrument. Judgments about how much other children would like masculine and feminine instruments did not differ according to those children's gender-stereotyped interest. Children made stereotypical predictions about the preferences of children of unknown sex who played either a masculine or feminine instrument. Implications for a theoretical account of the development of children's gender-stereotypes are discussed.