keyword
MENU ▼
Read by QxMD icon Read
search

perceptual categorization

keyword
https://www.readbyqxmd.com/read/28214576/amplified-induced-neural-oscillatory-activity-predicts-musicians-benefits-in-categorical-speech-perception
#1
Gavin M Bidelman
Event-related brain potentials (ERPs) reveal musical experience refines neural encoding and confers stronger categorical perception (CP) and neural organization for speech sounds. In addition to evoked brain activity, the human EEG can be decomposed into induced (non-phase-locked) response whose various frequency bands reflect different mechanisms of perceptual-cognitive processing. Here, we aimed to clarify which spectral properties of these neural oscillations are most prone to music-related neuroplasticity and which are linked to behavioral benefits in the categorization of speech...
February 15, 2017: Neuroscience
https://www.readbyqxmd.com/read/28209734/neural-representations-of-observed-actions-generalize-across-static-and-dynamic-visual-input
#2
Alon Hafri, John C Trueswell, Russell A Epstein
People interact with other people and with objects in distinct and categorizable ways (e.g., kicking is making contact with foot). We can recognize these action categories across variations in actors, objects, and settings; moreover, we can recognize them from both dynamic and static visual input. However, the neural systems that support action recognition across these perceptual differences are unclear. Here we used multivoxel pattern analysis of fMRI data to identify brain regions that support visual action categorization in a format-independent way...
February 16, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28207350/shifting-attention-between-visual-dimensions-as-a-source-of-switch-costs
#3
Heike Elchlepp, Maisy Best, Aureliu Lavric, Stephen Monsell
Task-switching experiments have documented a puzzling phenomenon: Advance warning of the switch reduces but does not eliminate the switch cost. Theoretical accounts have posited that the residual switch cost arises when one selects the relevant stimulus-response mapping, leaving earlier perceptual processes unaffected. We put this assumption to the test by seeking electrophysiological markers of encoding a perceptual dimension. Participants categorized a colored letter as a vowel or consonant or its color as "warm" or "cold...
February 1, 2017: Psychological Science
https://www.readbyqxmd.com/read/28191001/acoustic-properties-predict-perception-of-unfamiliar-dutch-vowels-by-adult-australian-english-and-peruvian-spanish-listeners
#4
Samra Alispahic, Karen E Mulak, Paola Escudero
Research suggests that the size of the second language (L2) vowel inventory relative to the native (L1) inventory may affect the discrimination and acquisition of L2 vowels. Models of non-native and L2 vowel perception stipulate that naïve listeners' non-native and L2 perceptual patterns may be predicted by the relationship in vowel inventory size between the L1 and the L2. Specifically, having a smaller L1 vowel inventory than the L2 impedes L2 vowel perception, while having a larger one often facilitates it...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28185587/local-self-governance-in-health-a-study-of-it-s-functioning-in-odisha-india
#5
Bhuputra Panda, Sanjay P Zodpey, Harshad P Thakur
BACKGROUND: Local decision making is linked to several service quality improvement parameters. Rogi Kalyan Samitis (RKS) at peripheral decision making health units (DMHU) are composite bodies that are mandated to ensure accountability and transparency in governance, improve quality of services, and facilitate local responsiveness. There is scant literature on the nature of functioning of these institutions in Odisha. This study aimed to assess the perception of RKS members about their roles, involvement and practices with respect to local decision making and management of DMHUs; it further examined perceptual and functional differences between priority and non-priority district set-ups; and identified predictors of involvement of RKS members in local governance of health units...
October 31, 2016: BMC Health Services Research
https://www.readbyqxmd.com/read/28174545/categorization-of-natural-whistled-vowels-by-na%C3%A3-ve-listeners-of-different-language-background
#6
Julien Meyer, Laure Dentel, Fanny Meunier
Whistled speech in a non-tonal language consists of the natural emulation of vocalic and consonantal qualities in a simple modulated whistled signal. This special speech register represents a natural telecommunication system that enables high levels of sentence intelligibility by trained speakers and is not directly intelligible to naïve listeners. Yet, it is easily learned by speakers of the language that is being whistled, as attested by the current efforts of the revitalization of whistled Spanish in the Canary Islands...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28160440/representation-of-speech-variability
#7
REVIEW
Tessa Bent, Rachael F Holt
Speech signals provide both linguistic information (e.g., words and sentences) as well as information about the speaker who produced the message (i.e., social-indexical information). Listeners store highly detailed representations of these speech signals, which are simultaneously indexed with linguistic and social category membership. A variety of methodologies-forced-choice categorization, rating, and free classification-have shed light on listeners' cognitive-perceptual representations of the social-indexical information present in the speech signal...
February 3, 2017: Wiley Interdisciplinary Reviews. Cognitive Science
https://www.readbyqxmd.com/read/28155185/dutch-modality-exclusivity-norms-simulating-perceptual-modality-in-space
#8
Laura J Speed, Asifa Majid
Perceptual information is important for the meaning of nouns. We present modality exclusivity norms for 485 Dutch nouns rated on visual, auditory, haptic, gustatory, and olfactory associations. We found these nouns are highly multimodal. They were rated most dominant in vision, and least in olfaction. A factor analysis identified two main dimensions: one loaded strongly on olfaction and gustation (reflecting joint involvement in flavor), and a second loaded strongly on vision and touch (reflecting joint involvement in manipulable objects)...
February 2, 2017: Behavior Research Methods
https://www.readbyqxmd.com/read/28140764/the-two-body-inversion-effect
#9
Liuba Papeo, Timo Stein, Salvador Soto-Faraco
How does one perceive groups of people? It is known that functionally interacting objects (e.g., a glass and a pitcher tilted as if pouring water into it) are perceptually grouped. Here, we showed that processing of multiple human bodies is also influenced by their relative positioning. In a series of categorization experiments, bodies facing each other (seemingly interacting) were recognized more accurately than bodies facing away from each other (noninteracting). Moreover, recognition of facing body dyads (but not nonfacing body dyads) was strongly impaired when those stimuli were inverted, similar to what has been found for individual bodies...
January 1, 2017: Psychological Science
https://www.readbyqxmd.com/read/28129455/the-role-of-generic-language-in-the-early-development-of-social-categorization
#10
Marjorie Rhodes, Sarah-Jane Leslie, Lydia Bianchi, Lisa Chalik
Classifying people into categories not only helps humans simplify a complex social world but also contributes to stereotyping and discrimination. This research examines how social categorization develops by testing how language imbues with meaning otherwise arbitrary differences between people. Experimental studies (N = 129) with 2-year-olds showed that generic language-language that refers to abstract kinds-guides the development of social categorization. Toddlers learned a new category after hearing generic language about individuals who shared an arbitrary perceptual feature but not after hearing matched specific language, simple labels, or plural (but nongeneric) language about the same set of individuals...
January 27, 2017: Child Development
https://www.readbyqxmd.com/read/28125254/is-that-a-human-categorization-dis-fluency-drives-evaluations-of-agents-ambiguous-on-human-likeness
#11
Evan W Carr, Galit Hofree, Kayla Sheldon, Ayse P Saygin, Piotr Winkielman
A fundamental and seemingly unbridgeable psychological boundary divides humans and nonhumans. Essentialism theories suggest that mixing these categories violates "natural kinds." Perceptual theories propose that such mixing creates incompatible cues. Most theories suggest that mixed agents, with both human and nonhuman features, obligatorily elicit discomfort. In contrast, we demonstrate top-down, cognitive control of these effects-such that the discomfort with mixed agents is partially driven by disfluent categorization of ambiguous features that are pertinent to the agent...
January 26, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28114496/categorization-influences-detection-a-perceptual-advantage-for-representative-exemplars-of-natural-scene-categories
#12
Eamon Caddigan, Heeyoung Choo, Li Fei-Fei, Diane M Beck
Traditional models of recognition and categorization proceed from registering low-level features, perceptually organizing that input, and linking it with stored representations. Recent evidence, however, suggests that this serial model may not be accurate, with object and category knowledge affecting rather than following early visual processing. Here, we show that the degree to which an image exemplifies its category influences how easily it is detected. Participants performed a two-alternative forced-choice task in which they indicated whether a briefly presented image was an intact or phase-scrambled scene photograph...
January 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28079970/categorizing-the-magnitude-and-frequency-of-exposure-to-uncivil-behaviors-a-new-approach-for-more-meaningful-interventions
#13
Dena Evans
PURPOSE: To examine turnover intentions, as well as the prevalence and frequency of uncivil behaviors, from the perspective of registered nurses, respiratory therapists, and imaging professionals, using a new method to categorize exposure magnitude. DESIGN AND METHODS: Data were collected using the 22-item Negative Acts Questionnaire-Revised (NAQ-R). Additional items, informed by Price and Mueller's causal model of turnover, were included, as were select demographic variables...
January 12, 2017: Journal of Nursing Scholarship
https://www.readbyqxmd.com/read/28073112/space-and-objects-on-the-phenomenology-and-cognitive-neuroscience-of-anomalous-perception-in-schizophrenia-ancillary-article-to-eawe-domain-1
#14
Steven M Silverstein, Docia Demmin, Borut Škodlar
BACKGROUND/AIMS: Perception of space and objects is a traditional focus within phenomenology, and disturbances in these aspects of perception among people with schizophrenia have long been discussed within phenomenological psychiatry. Despite this, there has been little empirical work on the causes and effects of most of these perceptual alterations in people with schizophrenia. Progress towards this goal can be accelerated by the use of EAWE (Examination of Anomalous World Experience), an interview-based tool to elicit, categorize, and quantify abnormal perceptual and other experiential phenomena...
January 11, 2017: Psychopathology
https://www.readbyqxmd.com/read/28070789/priming-facial-gender-and-emotional-valence-the-influence-of-spatial-frequency-on-face-perception-in-asd
#15
Steven Vanmarcke, Johan Wagemans
Adolescents with and without autism spectrum disorder (ASD) performed two priming experiments in which they implicitly processed a prime stimulus, containing high and/or low spatial frequency information, and then explicitly categorized a target face either as male/female (gender task) or as positive/negative (Valence task). Adolescents with ASD made more categorization errors than typically developing adolescents. They also showed an age-dependent improvement in categorization speed and had more difficulties with categorizing facial expressions than gender...
January 9, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28060872/audio-visual-perception-of-gender-by-infants-emerges-earlier-for-adult-directed-speech
#16
Anne-Raphaëlle Richoz, Paul C Quinn, Anne Hillairet de Boisferon, Carole Berger, Hélène Loevenbruck, David J Lewkowicz, Kang Lee, Marjorie Dole, Roberto Caldara, Olivier Pascalis
Early multisensory perceptual experiences shape the abilities of infants to perform socially-relevant visual categorization, such as the extraction of gender, age, and emotion from faces. Here, we investigated whether multisensory perception of gender is influenced by infant-directed (IDS) or adult-directed (ADS) speech. Six-, 9-, and 12-month-old infants saw side-by-side silent video-clips of talking faces (a male and a female) and heard either a soundtrack of a female or a male voice telling a story in IDS or ADS...
2017: PloS One
https://www.readbyqxmd.com/read/28056343/perceptual-decision-making-in-rodents-monkeys-and-humans
#17
REVIEW
Timothy D Hanks, Christopher Summerfield
Perceptual decision making is the process by which animals detect, discriminate, and categorize information from the senses. Over the past two decades, understanding how perceptual decisions are made has become a central theme in the neurosciences. Exceptional progress has been made by recording from single neurons in the cortex of the macaque monkey and using computational models from mathematical psychology to relate these neural data to behavior. More recently, however, the range of available techniques and paradigms has dramatically broadened, and researchers have begun to harness new approaches to explore how rodents and humans make perceptual decisions...
January 4, 2017: Neuron
https://www.readbyqxmd.com/read/28008804/alveolar-and-velarized-laterals-in-albanian-and-in-the-viennese-dialect
#18
Sylvia Moosmüller, Carolin Schmid, Christian H Kasess
A comparison of alveolar and velarized lateral realizations in two language varieties, Albanian and the Viennese dialect, has been performed. Albanian distinguishes the two laterals phonemically, whereas in the Viennese dialect, the velarized lateral was introduced by language contact with Czech immigrants. A categorical distinction between the two lateral phonemes is fully maintained in Albanian. Results are not as straightforward in the Viennese dialect. Most prominently, female speakers, if at all, realize the velarized lateral in word-final position, thus indicating the application of a phonetically motivated process...
December 2016: Language and Speech
https://www.readbyqxmd.com/read/27940151/neural-correlates-of-the-affective-properties-of-spontaneous-and-volitional-laughter-types
#19
Nadine Lavan, Georgia Rankin, Nicole Lorking, Sophie Scott, Carolyn McGettigan
Previous investigations of vocal expressions of emotion have identified acoustic and perceptual distinctions between expressions of different emotion categories, and between spontaneous and volitional (or acted) variants of a given category. Recent work on laughter has identified relationships between acoustic properties of laughs and their perceived affective properties (arousal and valence) that are similar across spontaneous and volitional types (Bryant & Aktipis, 2014; Lavan et al., 2016). In the current study, we explored the neural correlates of such relationships by measuring modulations of the BOLD response in the presence of itemwise variability in the subjective affective properties of spontaneous and volitional laughter...
December 9, 2016: Neuropsychologia
https://www.readbyqxmd.com/read/27916015/the-development-of-categorical-perception-of-mandarin-tones-in-four-to-seven-year-old-children
#20
Fei Chen, Gang Peng, Nan Yan, Lan Wang
To track the course of development in children's fine-grained perception of Mandarin tones, the present study explored how categorical perception (CP) of Mandarin tones emerges along age among 70 four- to seven-year-old children and 16 adults. Prominent discrimination peaks were found for both the child and the adult groups, and they were well aligned with the corresponding identification crossovers. Moreover, six-year-olds showed a much narrower width (i.e. a sharper slope) compared to younger children, and have already acquired adult-like identification competence of Mandarin high-level and mid-rising tones...
December 5, 2016: Journal of Child Language
keyword
keyword
50412
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"