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Motivational states and learning

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https://www.readbyqxmd.com/read/28541893/sequential-optimization-for-efficient-high-quality-object-proposal-generation
#1
Ziming Zhang, Yun Liu, Xi Chen, Yanjun Zhu, Ming-Ming Cheng, Venkatesh Saligrama, Philip H S Torr
We are motivated by the need for a generic object proposal generation algorithm which achieves good balance between object detection recall, proposal localization quality and computational efficiency. We propose a novel object proposal algorithm, BING++, which inherits the virtue of good computational efficiency of BING [1] but significantly improves its proposal localization quality. At high level we formulate the problem of object proposal generation from a novel probabilistic perspective, based on which our BING++ manages to improve the localization quality by employing edges and segments to estimate object boundaries and update the proposals sequentially...
May 23, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28541201/palmprint-recognition-based-on-complete-direction-representation
#2
Wei Jia, Bob Zhang, Jingting Lu, Yihai Zhu, Yang Zhao, Wangmeng Zuo, Haibin Ling
Direction information serves as one of the most important features for palmprint recognition. In the past decade, many effective direction representation (DR)-based methods have been proposed and achieved promising recognition performance. However, due to an incomplete understanding for DR, these methods only extract DR in one direction level and one scale. Hence, they did not fully utilized all potentials of DR. In addition, most researchers only focused on the DR extraction in spatial coding domain, and rarely considered the methods in frequency domain...
May 18, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28515060/barriers-and-facilitators-experienced-in-collaborative-prospective-research-in-orthopaedic-oncology-a-qualitative-study
#3
J S Rendon, M Swinton, N Bernthal, M Boffano, T Damron, N Evaniew, P Ferguson, M Galli Serra, W Hettwer, P McKay, B Miller, L Nystrom, W Parizzia, P Schneider, A Spiguel, R Vélez, K Weiss, J P Zumárraga, M Ghert
OBJECTIVES: As tumours of bone and soft tissue are rare, multicentre prospective collaboration is essential for meaningful research and evidence-based advances in patient care. The aim of this study was to identify barriers and facilitators encountered in large-scale collaborative research by orthopaedic oncological surgeons involved or interested in prospective multicentre collaboration. METHODS: All surgeons who were involved, or had expressed an interest, in the ongoing Prophylactic Antibiotic Regimens in Tumour Surgery (PARITY) trial were invited to participate in a focus group to discuss their experiences with collaborative research in this area...
May 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/28507135/parallel-memory-traces-are-built-after-an-experience-containing-aversive-and-appetitive-components-in-the-crab-neohelice
#4
Martín Klappenbach, Ayelén Nally, Fernando Federico Locatelli
The neurobiology of learning and memory has been mainly studied by focusing on pure aversive or appetitive experiences. Here, we challenged this approach considering that real-life stimuli come normally associated with competing aversive and appetitive consequences and that interaction between conflicting information must be intrinsic part of the memory processes. We used Neohelice crabs, taking advantage of two well-described appetitive and aversive learning paradigms and combining them in a single training session to evaluate how this affects memory...
May 15, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28495976/optogenetic-inhibition-of-ventral-pallidum-neurons-impairs-context-driven-salt-seeking
#5
Stephen E Chang, Elizabeth B Smedley, Katherine J Stansfield, Jeffrey J Stott, Kyle S Smith
Salt appetite, in which animals can immediately seek out salt when under a novel state of sodium deprivation, is a classic example of how homeostatic systems interface with learned associations to produce an on-the-fly updating of motivated behavior. Neural activity in the ventral pallidum (VP) has been shown to encode changes in the value of salt under such conditions, both the value of salt itself (Tindell et al., 2006) and the motivational value of its predictive cues (Tindell et al., 2009; Robinson & Berridge, 2013)...
May 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28479977/the-foundations-of-plant-intelligence
#6
REVIEW
Anthony Trewavas
Intelligence is defined for wild plants and its role in fitness identified. Intelligent behaviour exhibited by single cells and systems similarity between the interactome and connectome indicates neural systems are not necessary for intelligent capabilities. Plants sense and respond to many environmental signals that are assessed to competitively optimize acquisition of patchily distributed resources. Situations of choice engender motivational states in goal-directed plant behaviour; consequent intelligent decisions enable efficient gain of energy over expenditure...
June 6, 2017: Interface Focus
https://www.readbyqxmd.com/read/28463200/correlation-based-tracker-level-fusion-for-robust-visual-tracking
#7
Madan Rapuru, Sumithra Kakanuru, Pallavi Venugopal M, Deepak Mishra, Gorthi R F Subrahmanyam
Although visual object tracking algorithms are capable of handling various challenging scenarios individually, none of them are robust enough to handle all the challenges simultaneously. For any online tracking by detection method the key issue lies in detecting the target over the whole frame and updating systematically a target model based on the last detected appearance to avoid the drift phenomenon. This paper aims at proposing a novel robust tracking algorithm by fusing the frame level detection strategy of Tracking, Learning & Detection with the systematic model update strategy of Kernelized Correlation Filter tracker...
April 28, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28384481/cognitive-states-influence-dopamine-driven-aberrant-learning-in-parkinson-s-disease
#8
James F Cavanagh, Andrea A Mueller, Darin R Brown, Jacqueline R Janowich, Jacqueline H Story-Remer, Ashley Wegele, Sarah Pirio Richardson
Individual differences in dopaminergic tone underlie tendencies to learn from reward versus punishment. These effects are well documented in Parkinson's patients, who vacillate between low and high tonic dopaminergic states as a function of medication. Yet very few studies have investigated the influence of higher-level cognitive states known to affect downstream dopaminergic learning in Parkinson's patients. A dopamine-dependent cognitive influence over learning would provide a candidate mechanism for declining cognitive integrity and motivation in Parkinson's patients...
March 20, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28383932/who-needs-innate-ability-to-succeed-in-math-and-literacy-academic-domain-specific-theories-of-intelligence-about-peers-versus-adults
#9
Elizabeth A Gunderson, Noora Hamdan, Nicole S Sorhagen, Alexander P D'Esterre
Individuals' implicit theories of intelligence exist on a spectrum, from believing intelligence is fixed and unchangeable, to believing it is malleable and can be improved with effort. A belief in malleable intelligence leads to adaptive responses to challenge and higher achievement. However, surprisingly little is known about the development of academic-domain-specific theories of intelligence (i.e., math vs. reading and writing). The authors examined this in a cross-section of students from 1st grade to college (N = 523)...
April 6, 2017: Developmental Psychology
https://www.readbyqxmd.com/read/28381985/virtual-normalization-of-physical-impairment-a-pilot-study-to-evaluate-motor-learning-in-presence-of-physical-impairment
#10
Christopher Jarrett, Andrew McDaid
Motor learning is a critical component of the rehabilitation process; however, it can be difficult to separate the fundamental causes of a learning deficit when physical impairment is a confounding factor. In this paper, a new technique is proposed to augment the residual ability of physically impaired patients with a robotic rehabilitation exoskeleton, such that motor learning can be studied independently of physical impairment. The proposed technique augments the velocity of an on-screen cursor relative to the restricted physical motion...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28374264/bumblebees-at-work-in-an-emotion-like-state
#11
C M S Plowright
Pretest sucrose affects a dopamine-modulated response of bumblebees to an ambiguous cue to reward as well as a response to a simulated attack (Perry, Baciadonna, & Chittka, Science, 353(6307), 1529-1531, 2016). The contribution of the study lies in opening the door to research on the inner experience of insects, the learning and motivational mechanisms of their behavior, and the evolutionary analysis of emotions.
April 3, 2017: Learning & Behavior
https://www.readbyqxmd.com/read/28362608/tmagic-a-model-free-3d-tracker
#12
Karel Lebeda, Simon Hadfield, Richard Bowden
Significant effort has been devoted within the visual tracking community to rapid learning of object properties on the fly. However, state-of-the-art approaches still often fail in cases such as rapid out-of-plane rotation, when the appearance changes suddenly. One of the major contributions of this work is a radical rethinking of the traditional wisdom of modelling 3D motion as appearance change during tracking. Instead, 3D motion is modelled as 3D motion. This intuitive but previously unexplored approach provides new possibilities in visual tracking research...
March 1, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28344152/trait-based-food-cravings-are-encoded-by-regional-homogeneity-in-the-parahippocampal-gyrus
#13
Shuaiyu Chen, Debo Dong, Todd Jackson, Qian Zhuang, Hong Chen
Food cravings can reflect an intense trait-like emotional-motivational desire to eat palatable food, often resulting in the failure of weight loss efforts. Studies have linked trait-based food-cravings to increased risk of overeating. However, little is known about resting-state neural mechanisms that underlie food cravings. We investigated this issue using resting-state functional magnetic resonance imaging (fMRI) to test the extent to which spontaneous neural activity occurs in regions implicated in emotional memory and reward motivation associated with food cravings...
March 23, 2017: Appetite
https://www.readbyqxmd.com/read/28338882/tribal-love-the-neural-correlates-of-passionate-engagement-in-football-fans
#14
Isabel C Duarte, Sónia Afonso, Helena Jorge, Ricardo Cayolla, Carlos Ferreira, Miguel Castelo-Branco
The tribal character of the affective link between football fans and their teams is a well-recognized phenomenon. Other forms of love such as romantic or maternal attachment have previously been studied from a neuroimaging point of view. Here we aimed to investigate the neural basis of this tribal form of love, which implies both the feeling of belongingness and rivalry against opposing teams. A pool of 56 participants was submitted to an fMRI experimental design involving the presentation of winning and losing football moments of their loved, rival or neutral teams...
February 23, 2017: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/28337158/how-not-to-do-a-mindset-intervention-learning-from-a-mindset-intervention-among-students-with-good-grades
#15
Gábor Orosz, Szilvia Péter-Szarka, Beáta Bőthe, István Tóth-Király, Rony Berger
The present study examined the effectiveness of a Growth Mindset intervention based on Dweck et al.'s (1995) theory in the Hungarian educational context. A cluster randomized controlled trial classroom experiment was carried out within the framework of a train-the-trainer intervention among 55 Hungarian 10th grade students with high Grade Point Average (GPA). The results suggest that students' IQ and personality mindset beliefs were more incremental in the intervention group than in the control group 3 weeks after the intervention...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28325117/psychometric-summary-of-the-technology-delivered-tension-scales-for-weight-management
#16
Kelli L Kramer-Jackman, Sue Popkess-Vawter
The purpose of this article is to summarize the psychometric results from studies of the last 25 years of the Overeating Tension Scale, Exercise Tension Scale, Feelings Tension Scale, and Feelings About Weight Tension Scale. These reliable and valid technology-delivered weight management scales can be used by clinicians independently or in combination to longitudinally identify specific triggers of overeating, skipping exercise, feeling low or down, and strong feelings about one's body weight; motivational states, and related tension levels...
March 1, 2017: Western Journal of Nursing Research
https://www.readbyqxmd.com/read/28280394/addressing-intravaginal-practices-in-women-with-hiv-and-at-risk-for-hiv-infection-a-mixed-methods-pilot-study
#17
Maria L Alcaide, Violeta J Rodriguez, Margaret A Fischl, Deborah L Jones, Stephen M Weiss
Intravaginal practices (IVPs), include intravaginal cleansing (cleansing the inside of the vagina) or intravaginal insertion of products for hygiene, health or sexuality reasons. IVPs are associated with adverse female health outcomes, development of bacterial vaginosis, HIV acquisition and transmission. A mixed methods approach was used in this study to examine the prevalence of IVP, assess reasons for engagement, and perceptions of IVP among a sample of minority (African-American and Hispanic) women infected, or at-risk, for HIV in Miami, USA, a city with increasing numbers of sexually transmitted infections (STIs) and HIV...
2017: International Journal of Women's Health
https://www.readbyqxmd.com/read/28275895/-emotiplay-a-serious-game-for-learning-about-emotions-in-children-with-autism-results-of-a-cross-cultural-evaluation
#18
S Fridenson-Hayo, S Berggren, A Lassalle, S Tal, D Pigat, N Meir-Goren, H O'Reilly, S Ben-Zur, S Bölte, S Baron-Cohen, O Golan
Children with autism spectrum conditions (ASC) experience difficulties recognizing others' emotions and mental states. It has been shown that serious games (SG) can produce simplified versions of the socio-emotional world. The current study performed a cross-cultural evaluation (in the UK, Israel and Sweden) of Emotiplay's SG, a system aimed to teach emotion recognition (ER) to children with ASC in an entertaining, and intrinsically motivating way. Participants were 6-9 year olds with high functioning ASC who used the SG for 8-12 weeks...
March 8, 2017: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/28268947/design-projects-motivated-and-informed-by-the-needs-of-severely-disabled-autistic-children
#19
Steve Warren, Punit Prakash, David Thompson, Bala Natarajan, Charles Carlson, Kim Fowler, Ed Brokesh, Jack Xin, Wayne Piersel, Janine Kesterson, Steve Stoffregen
Technology can positively impact the lives of severely disabled autistic children if used to (a) gather situational awareness data regarding their health, development, and behavior and (b) assist them with learning and day-to-day activities. This paper summarizes student design projects in the Kansas State University (KSU) College of Engineering that are motivated and informed by the needs of severely disabled children at Heartspring, Wichita, KS. These efforts are supported through the National Science Foundation's General and Age-Related Disabilities Engineering (GARDE) program...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28264738/the-dark-side-of-dopaminergic-therapies-in-parkinson-s-disease-shedding-light-on-aberrant-salience
#20
Michele Poletti
Psychotic subjects and patients with Parkinson's disease (PD) "on" dopaminergic drugs, especially on dopamine agonists, present a hyperdopaminergic state that interferes with learning processing. These clinical populations present with distinct alterations of learning that share an increased potential motivational significance of stimuli: psychotic subjects may attribute salience to neutral stimuli, while medicated PD patients may overvalue rewards. Herein is discussed the speculative hypothesis that the hyperdopaminergic state induced by dopaminergic treatments, especially with dopamine agonists, may also facilitate the attribution of salience to neutral stimuli in PD patients, altering the physiological attribution of salience...
March 7, 2017: CNS Spectrums
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