Results 91 to 100 of about 19,755 (259)

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

The Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

Uncertainty-Dependent Extinction of Fear Memory in an Amygdala-mPFC Neural Circuit Model.

PLoS Computational Biology, 2016
Uncertainty of fear conditioning is crucial for the acquisition and extinction of fear memory. Fear memory acquired through partial pairings of a conditioned stimulus (CS) and an unconditioned stimulus (US) is more resistant to extinction than that ...
Yuzhe Li, Ken Nakae, Shin Ishii, Honda Naoki   +3 more
doaj   +1 more source

A second species of non‐crocodyliform crocodylomorph from the Late Triassic fissure deposits of southwestern UK: Implications for locomotory ecological diversity in Saltoposuchidae

The Anatomical Record, EarlyView.
Abstract The Late Triassic–Early Jurassic fissures of the Bristol Channel area (southwest England and south Wales) are renowned for their diverse vertebrate faunas. These assemblages have yielded an array of predominantly small‐bodied forms that are crucial to our understanding of the early evolution of several major tetrapod clades.
Ewan H. Bodenham, Stephan N. F. Spiekman, Susannah C. R. Maidment, Paul Upchurch, Philip D. Mannion   +4 more
wiley   +1 more source

No Evidence for Decreased Generalization of Fear Extinction in High-Trait Anxious Individuals

Journal of Experimental Psychopathology
Exposure-based therapy for anxiety disorders involves confrontations with feared but innocuous stimuli to promote inhibitory safety learning and fear extinction.
Bart Endhoven, Angelos M. Krypotos, Gaëtan Mertens, Iris M. Engelhard   +3 more
doaj   +1 more source

Reduced expression of conditioned fear in the R6/2 mouse model of Huntington's disease is related to abnormal activity in prelimbic cortex

Neurobiology of Disease, 2011
Prefrontal cortex (PFC) dysfunction is common in patients with Huntington's disease (HD), a dominantly inherited neurological disorder, and has been linked to cognitive disruption.
Adam G. Walker, Jason R. Ummel, George V. Rebec   +2 more
doaj   +1 more source

‘Where are the adults?’: Troubling child‐activism and children's political participation

British Educational Research Journal, EarlyView.
Abstract Children's political participation is a well‐established theme in childhood studies. In this article we offer an original account of child activism that takes into account the entangled and emergent aspect of children as activists. We begin with a historical and a conceptual review, noting the importance of mid‐20th century developments such ...
Sharon Hunter, Claire Cassidy
wiley   +1 more source

Inhibition of Diacylglycerol Lipase Impairs Fear Extinction in Mice

Frontiers in Neuroscience, 2018
Elucidating the underlying molecular mechanisms regulating fear and extinction learning may offer insights that can lead to novel treatments for debilitating anxiety and trauma-related disorders including posttraumatic stress disorder.
Victoria S. Cavener, Victoria S. Cavener, Andrew Gaulden, Dante Pennipede, Puja Jagasia, Jashim Uddin, Lawrence J. Marnett, Sachin Patel, Sachin Patel   +8 more
doaj   +1 more source

Controlling the Field: Memory, Labor, and Ethics in Oral Histories of Brazilian Human Genetics

Berichte zur Wissenschaftsgeschichte, EarlyView.
This article examines how oral histories of twentieth‐century human genetics in Brazil reveal the politics of memory of fieldwork. Through a comparative analysis of interviews with prominent geneticist Francisco M. Salzano and technician Girley V. Simões, who worked with him for most of his career, this study explores the narrative strategies each ...
Rosanna Dent, Ana Carolina Vimieiro Gomes   +1 more
wiley   +1 more source

Long‐term trends in parasite diversity and infection levels: approaches and patterns

Biological Reviews, EarlyView.
ABSTRACT Parasites exist in every ecosystem, affecting nearly all organisms and playing a complex role in human societies. On the one hand, they contribute substantially to biodiversity and support ecosystem stability by performing essential ecological functions.
Cyril Hammoud, Juan Antonio Balbuena, Isabel Blasco‐Costa, Katie O'Dwyer, Rachel A. Paterson, Tomáš Scholz, Christian Selbach, Bernd Sures, David W. Thieltges   +8 more
wiley   +1 more source

The flexible, the stereotyped and the in‐between: putting together the combinatory tool use origins hypothesis

Biological Reviews, EarlyView.
ABSTRACT Tool use research has long made the distinction between tool using that is considered learned and flexible, and that which appears to be instinctive and stereotyped. However, animals with an inherited tool use specialisation can exhibit flexibility, while tool use that is spontaneously innovated can be limited in its expression and facilitated
Jennifer A. D. Colbourne, Alice M. I. Auersperg   +1 more
wiley   +1 more source