نتایج جستجو برای: olfactory memory

تعداد نتایج: 280746  

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2014
Maithe Arruda-Carvalho Katherine G Akers Axel Guskjolen Masanori Sakaguchi Sheena A Josselyn Paul W Frankland

Proliferation of neural progenitor cells in the subventricular zone leads to the continuous generation of new olfactory granule cells (OGCs) throughout life. These cells synaptically integrate into olfactory bulb circuits after ∼2 weeks and transiently exhibit heightened plasticity and responses to novel odors. Although these observations suggest that adult-generated OGCs play important roles i...

Journal: :Learning & memory 2014
Yukihisa Matsumoto Jean-Christophe Sandoz Jean-Marc Devaud Flore Lormant Makoto Mizunami Martin Giurfa

Memory is a dynamic process that allows encoding, storage, and retrieval of information acquired through individual experience. In the honeybee Apis mellifera, olfactory conditioning of the proboscis extension response (PER) has shown that besides short-term memory (STM) and mid-term memory (MTM), two phases of long-term memory (LTM) are formed upon multiple-trial conditioning: an early phase (...

2014
Barbara Ferry

A large variety of behaviors that are essential for animal survival depend on the perception and processing of surrounding smells present in the natural environment. In particular, food-search behavior, which is conditioned by hunger, is directly driven by the perception of odors associated with food, and feeding status modulates olfactory sensitivity. The orexinergic hypothalamic peptide orexi...

Journal: :The European journal of neuroscience 2014
Emanuele Brai Swananda Marathe Lorena Zentilin Mauro Giacca Johannes Nimpf Robert Kretz Alessandra Scotti Lavinia Alberi

Notch signalling plays an important role in synaptic plasticity, learning and memory functions in both Drosophila and rodents. In this paper, we report that this feature is not restricted to hippocampal networks but also involves the olfactory bulb (OB). Odour discrimination and olfactory learning in rodents are essential for survival. Notch1 expression is enriched in mitral cells of the mouse ...

Journal: :Neuron 2004
Alex C. Keene Markus Stratmann Andreas Keller Paola N. Perrat Leslie B. Vosshall Scott Waddell

Amnesiac mutant flies have an olfactory memory defect. The amn gene encodes a homolog of vertebrate pituitary adenylate cyclase-activating peptide (PACAP), and it is strongly expressed in dorsal paired medial (DPM) neurons. DPM neurons ramify throughout the mushroom bodies in the adult fly brain, and they are required for stable memory. Here, we show that DPM neuron output is only required duri...

2013
Cornelia Hinz ri Namekawa Jasminca Behrmann-Godel Claus Oppelt Aaron Jaeschke Anke Müller Rainer W. Friedrich Gabriele Gerlach

Olfactory imprinting on environmental, population- and kin-specific cues is a specific form of life-long memory promoting homing of salmon to their natal rivers and the return of coral reef fish to natal sites. Despite its ecological significance, natural chemicals for olfactory imprinting have not been identified yet. Here, we show that MHC peptides function as chemical signals for olfactory i...

Journal: :Frontiers in neuroscience 2015
Sei-ichi Yoshihara Hiroo Takahashi Akio Tsuboi

Inhibitory interneurons in the olfactory bulb are generated continuously throughout life in the subventricular zone and differentiate into periglomerular and granule cells. Neural circuits that undergo reorganization by newborn olfactory bulb interneurons are necessary for odor detection, odor discrimination, olfactory memory, and innate olfactory responses. Although sensory experience has been...

Journal: :Physiological and biochemical zoology : PBZ 2007
Frederic Mery Juliette Pont Thomas Preat Tadeusz J Kawecki

In order to address the nature of genetic variation in learning performance, we investigated the response to classical olfactory conditioning in "high-learning" Drosophila melanogaster lines previously subject to selection for the ability to learn an association between the flavor of an oviposition medium and bitter taste. In a T-maze choice test, the seven high-learning lines were better at av...

Journal: :Learning & memory 2000
B Gerber R Menzel

We investigate olfactory memory consolidation in honeybees. Three experiments are reported that include 1024 animals in 28 experimental groups. After one pairing of odorant and sucrose reward, retention is typically nonmonotonic with a minimum 3 min after conditioning. This corresponds to the "Kamin effect" in vertebrates; the postminimum rise in retention is usually interpreted as reflecting m...

2015
Tugce Yildizoglu Jan-Marek Weislogel Farhan Mohammad Edwin S.-Y. Chan Pryseley N. Assam Adam Claridge-Chang Malcolm R Macleod

Genetic studies in Drosophila reveal that olfactory memory relies on a brain structure called the mushroom body. The mainstream view is that each of the three lobes of the mushroom body play specialized roles in short-term aversive olfactory memory, but a number of studies have made divergent conclusions based on their varying experimental findings. Like many fields, neurogenetics uses null hyp...

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