Octopus Consciousness: The Role of Perceptual Richness

It is always difficult to even advance possible dimensions of consciousness, but Birch et al., 2020 have suggested four possible dimensions and this review discusses the first, perceptual richness, with relation to octopuses. They advance acuity, bandwidth, and categorization power as possible components. It is first necessary to realize that sensory richness does not automatically lead to perceptual richness and this capacity may not be accessed by consciousness. Octopuses do not discriminate light wavelength frequency (color) but rather its plane of polarization, a dimension that we do not understand. Their eyes are laterally placed on the head, leading to monocular vision and head movements that give a sequential rather than simultaneous view of items, possibly consciously planned. Details of control of the rich sensorimotor system of the arms, with 3/5 of the neurons of the nervous system, may normally not be accessed to the brain and thus to consciousness. The chromatophore-based skin appearance system is likely open loop, and not available to the octopus’ vision. Conversely, in a laboratory situation that is not ecologically valid for the octopus, learning about shapes and extents of visual figures was extensive and flexible, likely consciously planned. Similarly, octopuses’ local place in and navigation around space can be guided by light polarization plane and visual landmark location and is learned and monitored. The complex array of chemical cues delivered by water and on surfaces does not fit neatly into the components above and has barely been tested but might easily be described as perceptually rich. The octopus’ curiosity and drive to investigate and gain more information may mean that, apart from richness of any stimulus situation, they are consciously driven to seek out more information. This review suggests that cephalopods may not have a similar type of intelligence as the ‘higher’ vertebrates, they may not have similar dimensions or contents of consciousness, but that such a capacity is present nevertheless.

Characterizing Subjective Noisiness in Hospital Lobbies

The present study was conducted in the lobbies of 16 Taiwanese urban hospitals to establish what contributes to the degree of noisiness experienced by patients and those accompanying them. Noise level measurements were then conducted by 15 min equivalent sound pressure levels (LAeq, 15m, dB) during daytime hours. The average LAeq itself was found to be poorly related to perceived noisiness. Levels variations were better correlated, more continual noise may actually be perceived as noisier. According to the findings of a multiple linear stepwise regression model (r = 0.91, R2 = 0.83), the 3 independent variables shown to have the largest effects on perceived noisiness were 1) 1/(L5 − L95), 2) effective duration of the normalized autocorrelation function (τe, h), of all LAeq, 15m over 9–17, and 3) percentile loudness, N5, 15m. These results resemble previous studies that had assumed that a larger fluctuation of noise level corresponds to less annoyance experienced for mixed traffic noise studied in a laboratory situation. As an advanced approach, for hospital noise that consisted of 12 audible noise events, subjective noisiness were evaluated by the noise time structure analyzed by autocorrelation with loudness and levels variation.

What’s Wrong with Their Mice?

This chapter discusses the use of animals to explore issues relating to human cognition, emotion, volition, and their pathologies. Researchers who use animal models in their work point to similarities in the genomes of the two species, in the structure of mouse and human brain, in patterns of brain activation, in neural mechanisms at the cellular and molecular level, in responses to drugs and so forth, perhaps with reference to evolution and the principle of conservation across species when it comes to the most basic aspects of living organisms, including their brains. The chapter then examines four interconnected themes: the question of the artificiality of the laboratory situation within which animal experiments are conducted; the idea of a model in behavioral and psychiatric research; the specificity of the human and the elision of history and human sociality; and the problem of translation.

Personality Differences in Emotions

In Study 1, individuals high in neuroticism (high N) felt more negative and experienced less decrease of their negative emotions than individuals low in Neuroticism (low N) when extremely unpleasant hypothetical scenarios improved. Study 2 also found that high N individuals felt more negative than low N in a slightly unpleasant laboratory situation, and that individuals high in Extraversion (high E) felt more positive than individuals low in Extraversion (low E) in a slightly pleasant laboratory situation. The present studies also confirmed that high N individuals were less likely to repair negative emotions than low N, and high E individuals were more likely to savor positive emotions than low E. These attempts at negative and positive emotion regulation predicted negative and positive emotional reactions, respectively, and accounted for the trait differences in emotions. Hence, there is evidence that differences in negative emotion regulation mediated the relation between Neuroticism and negative emotions, and differences in positive emotion regulation mediated the relation between Extraversion and positive emotions.

Autonomy- vs. connectedness-oriented parenting behaviours in Chinese and Canadian mothers

The purpose of the study was to investigate maternal socialization goal-oriented behaviours in Chinese and Canadian mothers. Participants were samples of children at 2 years of age and their mothers in P.R. China and Canada. Data on child autonomy and connectedness and maternal encouragement of autonomy and connectedness were collected from observations of mother–child interactions in a laboratory situation. Cross-cultural similarities as well as differences were found in the study. Chinese mothers had higher scores on overall involvement than Canadian mothers during mother–child interaction. When overall involvement was controlled, Chinese mothers had higher scores than Canadian mothers on encouragement of connectedness. In contrast, Canadian mothers had higher scores than Chinese mothers on encouragement of autonomy. The results suggest that culturally general and specific socialization goals and values are reflected in maternal parenting behaviours.

Standardized Comparison of Processing Capacity and Efficiency of Five New-Generation Immunoassay Analyzers

Background: With the trend toward laboratory and workstation consolidation, more studies are necessary to evaluate instrumentation, solutions for coping with workflow and test diversity, and opportunities for increasing the overall efficiency of laboratory testing. We assessed the processing capacity and efficiency of new-generation immunoassay analyzers by determining productivity parameters of five commercially available systems. Methods: A workload protocol was developed and used to assess processing capacity and efficiency parameters of five immunoassay analyzers under standardized conditions in a real-life routine situation. We studied the ACS:Centaur® (analyzer A), ArchitectTMi2000 (analyzer B), Elecsys® 2010 tandem (analyzer C), Immulite® 2000 (analyzer D), and Vitros ECi (analyzer E) on the basis of a standardized workload protocol that reflected a routine laboratory situation. This workload encompassed reflex and STAT testing, dilutions, and in-run calibration of a new reagent lot number. The analyzers were compared for hands-on labor time, unattended time (UT), throughput, and differentiated relative productivity indexes [RPI(UT); number of reportable results/(processing time − sum of unattended time)]. The RPI data for analyzers linked to an automated (aut) sample-handling system [RPI(aut)] were also calculated. Results: The evaluation produced a set of parameters for the productivity of the instruments. An overview of the most important parameters revealed the following: the throughput was 193, 123, 97, 109, and 46 tests/hour for instruments A, B, C, D and E, respectively; the RPI(10) was 425, 238, 161, 445, and 151 tests/operator-hour; the RPI(30) was 229, 136, 118, 264, and 86 tests/operator-hour; the RPI(10,aut) was 1701, 637, 235, 964, and 223 tests/operator-hour; and the RPI(30,aut) was 298, 150, 174, 400, and 114 tests/operator-hour. Conclusions: The combination of a standardized workload protocol and determination of parameters for productivity and labor efficiency, especially the differentiated RPIs, made it possible to make an objective comparison of the organizational consequences of the use of these instruments. The described parameters allow for a scientifically based choice, given a certain workflow and a particular laboratory organization.

Social Problem Solving: Effect of Context and Parent Sex

A group of 368 children, ages 3, 5, and 7, half boys and half girls, were seen with their mothers and fathers in two contexts. First, they were observed with all family members in their homes, with instructions to continue with normal activities. Then they were seen separately in the laboratory with each parent, who was asked to help them solve a problem involving a common social situation. In the laboratory situation, boys and girls were given equal amounts of help by their parents. Mothers and fathers behaved in similar fashion in the laboratory, and the only significant differences were with the children’s ages. In the home, mothers and fathers did differ, with the mother giving more instruction and providing more instruction to girls.