scholarly journals Encoding of odor information and reward anticipation in anterior cortical amygdaloid nucleus

2020 ◽  
Author(s):  
Kazuki Shiotani ◽  
Yuta Tanisumi ◽  
Junya Hirokawa ◽  
Yoshio Sakurai ◽  
Hiroyuki Manabe
Keyword(s):  
Sensory Input ◽  
Late Phase ◽  
Amygdaloid Nucleus ◽  
Neuron Type ◽  
Water Reward ◽  
Behavioral Learning ◽  
Olfactory Information ◽  
Reward Anticipation ◽  
Reward Delivery ◽  
Anticipatory Activity

AbstractOlfactory information directly reaches the amygdala through the olfactory cortex, without the involvement of thalamic areas, unlike other sensory systems. The anterior cortical amygdaloid nucleus (ACo) is one of the olfactory cortices that receives olfactory sensory input, and is part of the olfactory cortical amygdala, which relays olfactory information to the amygdala. To examine its electrophysiological features, we recorded individual ACo neurons during the odor-guided go/no-go task to obtain a water reward. Many ACo neurons exhibited odor-evoked go cue-preferred during the late phase of odor-sampling supporting the population dynamics that differentiate go/no-go responses before executing the odor-evoked behaviors. We observed two types of neurons with different anticipation signals: one neuron type exhibited gradual increases of activity toward reward delivery, while another type exhibited a phasic go cue-preferred activity during odor sampling as well as another phasic anticipatory activity for rewards. These results suggest that the ACo may be involved in reward-related behavioral learning by associating the olfactory information with reward anticipation.

Cocaine-induced Impulsive Choices Are Accompanied by Impaired Delay-dependent Anticipatory Activity in Basolateral Amygdala

2012 ◽  
Vol 24 (1) ◽  
pp. 196-211 ◽  
Author(s):  
Yanfang Zuo ◽  
Xinsheng Wang ◽  
Cailian Cui ◽  
Fei Luo ◽  
Peng Yu ◽  
...  
Keyword(s):  
Decision Making ◽  
Basolateral Amygdala ◽  
Delayed Reinforcement ◽  
Cocaine Exposure ◽  
Reward Delivery ◽  
Chronic Cocaine ◽  
Delay Dependence ◽  
Show Evidence ◽  
Anticipatory Activity ◽  
Delay Dependent

Addicts and drug-experienced animals have decision-making deficits in delayed reinforcement choice task, in which they prefer small immediate rewards over large delayed rewards. Here, we show evidence that this deficit is accompanied by changed coding of delay length in the basolateral amygdala (BLA). A subset of neurons in BLA demonstrated delay-dependent anticipatory activity (either increase or decrease as a function of delay to reward) in naive rats. After 30 days of withdrawal from chronic cocaine treatment (30 mg/kg/day for 10 days ip), the proportion of delay-dependent anticipatory neurons reduced, whereas delay-dependent activity in response to elapsed delay after reward delivery increased, both in the proportion of delay-dependent neurons and in the extent of delay dependence. Cocaine exposure increased, instead of decreased, BLA neuronal expectation for different reward magnitudes. These results indicate that BLA is critical for representing and maintaining the information of delayed reward before its delivery, and cocaine exposure may affect decision-making by impairing perception of delay instead of the ability to assess the differences in reward size.

Immediate Changes in Anticipatory Activity of Caudate Neurons Associated With Reversal of Position-Reward Contingency

2005 ◽  
Vol 94 (3) ◽  
pp. 1879-1887 ◽  
Author(s):  
Katsumi Watanabe ◽  
Okihide Hikosaka
Keyword(s):  
Saccade Latency ◽  
Projection Neurons ◽  
Visually Guided ◽  
Reward Contingency ◽  
Caudate Nuclei ◽  
Reward Delivery ◽  
Saccade Task ◽  
The Difference ◽  
Reward Contingencies ◽  
Anticipatory Activity

The primate caudate nucleus plays a crucial role in transforming cognitive/motivational information into eye movement signals. A subset of caudate projection neurons fire before a visual target's onset. This anticipatory activity is sensitive to position-reward contingencies and correlates with saccade latency, which is shorter toward a rewarded position. We recorded single-unit activity of caudate projection neurons to examine the dynamics of change in anticipatory activity immediately after switches of the position-reward contingency. Two monkeys performed a visually guided saccade task where only one position was associated with reward. The position-reward mapping remained constant within a block, but was reversed frequently between blocks without any indication to the monkey. Therefore the switch could be detected only by unexpected reward delivery or unexpected lack of reward. After the switch, both saccade latency and anticipatory activity showed reliable changes already in the second trial, whether or not the first trial was rewarded. However, anticipatory activity in the second trial was generally higher if the first trial was rewarded, and the measured saccade latencies could be better explained by the difference in anticipatory activity between the two caudate nuclei. We suggest that anticipatory activity of caudate neurons reflects the reversal set of reward-position contingency.

scholarly journals Mesolimbic recruitment by nondrug rewards in detoxified alcoholics: Effort anticipation, reward anticipation, and reward delivery

2011 ◽  
Vol 33 (9) ◽  
pp. 2174-2188 ◽  
Author(s):  
James M. Bjork ◽  
Ashley R. Smith ◽  
Gang Chen ◽  
Daniel W. Hommer
Keyword(s):  
Reward Anticipation ◽  
Reward Delivery

scholarly journals Abnormal Striatal BOLD Responses to Reward Anticipation and Reward Delivery in ADHD

PLoS ONE ◽  
2014 ◽  
Vol 9 (2) ◽  
pp. e89129 ◽  
Author(s):  
Emi Furukawa ◽  
Patricia Bado ◽  
Gail Tripp ◽  
Paulo Mattos ◽  
Jeff R. Wickens ◽  
...  
Keyword(s):  
Reward Anticipation ◽  
Reward Delivery ◽  
Bold Responses

William James: The Late Phase

1998 ◽  
Vol 43 (11) ◽  
pp. 760-761 ◽  
Author(s):  
James William Anderson
Keyword(s):  
William James ◽  
Late Phase

Effects of metoprolol on hypoxia- and isoflurane-induced late-phase preconditioning

2011 ◽  
Vol 59 (S 01) ◽  
Author(s):  
A Goetzenich ◽  
A Moza ◽  
A Roehl ◽  
S Arnold ◽  
M Hein
Keyword(s):  
Late Phase

Ważyk metafizyczny? / Ważyk – A Metaphysician?

2013 ◽  
Vol 54 (1) ◽  
pp. 35-47
Author(s):  
Jerzy Święch
Keyword(s):  
Twentieth Century ◽  
Human Life ◽  
Late Phase ◽  
Human Condition ◽  
Theory And Practice ◽  
Strict Sense ◽  
Ontological Security ◽  
Life And Death ◽  
Avant Garde ◽  
Self Sufficiency

Summary Adam Ważyk’s last volume of poems Zdarzenia (Events) (1977) can be read as a resume of the an avant-garde artist’s life that culminated in the discovery of a new truth about the human condition. The poems reveal his longing for a belief that human life, the mystery of life and death, makes sense, ie. that one’s existence is subject to the rule of some overarching necessity, opened onto the last things, rather than a plaything of chance. That entails a rejection of the idea of man’s self-sufficiency as an illusion, even though that kind of individual sovereignty was the cornerstone of modernist art. The art of late modernity, it may be noted, was already increasingly aware of the dangers of putting man’s ‘ontological security’ at risk. Ważyk’s last volume exemplifies this tendency although its poems appear to remain within the confines of a Cubist poetics which he himself helped to establish. In fact, however, as our readings of the key poems from Events make clear, he employs his accustomed techniques for a new purpose. The shift of perspective can be described as ‘metaphysical’, not in any strict sense of the word, but rather as a shorthand indicator of the general mood of these poems, filled with events which seem to trap the characters into a supernatural order of things. The author sees that much, even though he does not look with the eye of a man of faith. It may be just a game - and Ważyk was always fond of playing games - but in this one the stakes are higher than ever. Ultimately, this game is about salvation. Ważyk is drawn into it by a longing for the wholeness of things and a dissatisfaction with all forms of mediation, including the Cubist games of deformation and fragmentation of the object. It seems that the key to Ważyk’s late phase is to be found in his disillusionment with the twentieth-century avant-gardes. Especially the poems of Events contain enough clues to suggest that the promise of Cubism and surrealism - which he sought to fuse in his poetic theory and practice - was short-lived and hollow.

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