LeDoux; Emotional Brain
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LeDoux; Emotional Brain 13 Split-brain surgery, Roger Sperry
LeDoux; Emotional Brain 13 LeDoux's thesis advise, Mike Gazzaniga 0
LeDoux; Emotional Brain 16 Word "perception" describes in a general way what goes on when we see, hear, smell, .  .  . 3
LeDoux; Emotional Brain 17 Neural organization of emotional behavioral systems of vertebrates is similar across species. 1
LeDoux; Emotional Brain 17 Emotional responses, for the most part, are generated unconsciously. 0
LeDoux; Emotional Brain 19 There is not one mechanism of consciousness, and it can be occupied by mundane facts or highly charged emotions. 2
LeDoux; Emotional Brain 19 Emotions easily bump mundane events out of awareness. 0
LeDoux; Emotional Brain 19 While conscious control over emotions is weak, emotions can flood consciousness. 0
LeDoux; Emotional Brain 19 Connections from the emotional systems to the cognitive systems are stronger than connections from the cognitive systems to the emotional system. 0
LeDoux; Emotional Brain 19 Once emotions occur, they become powerful motivators of future behaviors. 0
LeDoux; Emotional Brain 20 Fear becomes anxiety, desire gives way to greed, annoyance turns to anger, anger to hatred, friendship to envy, love to obsession, or pleasure to addiction.
LeDoux; Emotional Brain 20 Cognitive science treats minds as though they are computers. 1
LeDoux; Emotional Brain 21 There is no single emotion system.  Instead, there are lots of emotion systems. 1
LeDoux; Emotional Brain 21 Emotion systems operate outside of consciousness, and they constitute the emotional unconscious. 1
LeDoux; Emotional Brain 22 Human brain contains about 10 billion neurons. 1
LeDoux; Emotional Brain 25 Cognitive science is about thinking, reasoning and intellect. 3
LeDoux; Emotional Brain 25 Behaviorist psychology, objectively measurable behaviors, "ghosts in the machine." 0
LeDoux; Emotional Brain 31 Brain can unconsciously solve geometric problems.  [Gestalts] 6
LeDoux; Emotional Brain 31 We do not consciously plan the grammatical structure of the sentences we utter. 0
LeDoux; Emotional Brain 32 Split-brain patients, only the left hemisphere could talk. 1
LeDoux; Emotional Brain 33 Much of mental life occurs outside of conscious awareness. 1
LeDoux; Emotional Brain 35 Distinguish thinking and feeling; cognition and emotion. 2
LeDoux; Emotional Brain 36 Gut feelings in making decisions. 1
LeDoux; Emotional Brain 56 Subliminal perception 20
LeDoux; Emotional Brain 67 Much emotional processing occurs unconsciously. 11
LeDoux; Emotional Brain 68 Emotional and cognitive processing both largely occur unconsciously. 1
LeDoux; Emotional Brain 69 Emotion and cognition are best thought of as separate but interacting mental functions. 1
LeDoux; Emotional Brain 69 Cognition gives choices; appraisal mechanisms narrow the response options. 0
LeDoux; Emotional Brain 77 Language comprehension, Wernicke area. 8
LeDoux; Emotional Brain 77 Speech syntax, Broca area. 0
LeDoux; Emotional Brain 82 Conscious experiences of emotions -- the feelings. 5
LeDoux; Emotional Brain 83 Sensory thalamus and sensory cortex - (diagram), Sensory messages transmitted to specific areas of the thalamus, process signals and relay results to specialized areas of neocortex. 1
LeDoux; Emotional Brain 88 Hippocampus was included in the Papez circuit because  it was known to be a major site of brain damage in rabies, with intense emotional, convulsive, paralytic symptoms. 5
LeDoux; Emotional Brain 89 Papez Circuit -- (diagram) 1
LeDoux; Emotional Brain 90 Papez suggested that emotional experiences could be generated in two ways: (1) stream of feeling by sensory objects, (2) stream of thought to cerebral cortex, then to cingulate cortex. 1
LeDoux; Emotional Brain 90 Distinction between subcortical and cortical activation of emotion. 0
LeDoux; Emotional Brain 90 Papez circuit theory, takeoff point for limbic system theory. 0
LeDoux; Emotional Brain 92 Importance of the hypothalamus in emotional expression; importance of the cerebral cortex in emotional experience. 2
LeDoux; Emotional Brain 92 Neocortex lacks significant connections with the hypothalamus; evolutionarily older areas of the medial cortex (rhinencephalon) are intimately connected with the hypothalamus. 0
LeDoux; Emotional Brain 95 MacLean's Limbic System theory -- (diagram) 3
LeDoux; Emotional Brain 97 feeding, defense, fighting, reproduction 2
LeDoux; Emotional Brain 97 In 1952, MacLean introduced the term 'limbic system'. 0
LeDoux; Emotional Brain 98 Forebrain, according to MacLean (1970), had gone through three stages of evolution: (1) reptilian, (2) paleomammalian, (3) neomammalian. 1
LeDoux; Emotional Brain 98 Paleomammalian brain, present in all mammals, is essentially the limbic system. 0
LeDoux; Emotional Brain 99 Lowly animals only have the medial (old) cortex, but mammals have both the medial and lateral (new) cortex. 1
LeDoux; Emotional Brain 100 Hypothalamus is connected to all levels of the nervous system, including the neocortex. 1
LeDoux; Emotional Brain 101 The term Limbic System should be discarded. 1
LeDoux; Emotional Brain 102 Evolution of the brain as a key to understanding emotions. 1
LeDoux; Emotional Brain 102 Emotions are indeed functions involved in survival. 0
LeDoux; Emotional Brain 104 Brain is the product of evolutionary tinkering, where lots of little changes over extremely long periods of time have accumulated. 2
LeDoux; Emotional Brain 104 Linguist Steven Pinker. 0
LeDoux; Emotional Brain 105 Evolution tends to act on the individual modules and their functions rather than the brain as a whole. 1
LeDoux; Emotional Brain 105 Breathing is controlled in the medulla oblongata, that utility station down in the subbasement of the brain. 0
LeDoux; Emotional Brain 105 Attempts to find a single unified brain system of emotion have not been very successful. 0
LeDoux; Emotional Brain 106 Different emotions are mediated by different brain networks, different modules. 1
LeDoux; Emotional Brain 106 Human species seems to be endowed with natural language. 0
LeDoux; Emotional Brain 107 Some emotional systems in the brain are essentially the same in many vertebrates, including mammals, reptiles, birds and possibly amphibians and fishes. 1
LeDoux; Emotional Brain 107 Evolution stubbornly maintains emotional functions across species. 0
LeDoux; Emotional Brain 108 Herbert Spencer, a contemporary of Darwin's, who transformed "descent with modification" into "evolution." 1
LeDoux; Emotional Brain 109 Bodily expressions (especially of the face) occurring during emotions are similar in people around the world. 1
LeDoux; Emotional Brain 110 Goose bumps, a mild form of piloerection in humans, occur as a vestige of the more dramatic displays in our mammalian cousins. 1
LeDoux; Emotional Brain 112 Innate emotions, some have older evolutionary histories than others. 2
LeDoux; Emotional Brain 112 Innate emotions, universal facial expressions that are similar across many different cultures. 0
LeDoux; Emotional Brain 112 Eight basic emotions -- surprise, interest, joy, rage, fear, disgust, shame, anguish - controlled by 'hardwired' brain systems. 0
LeDoux; Emotional Brain 114 Mixing of basic emotions into higher order emotions is typically thought of as a cognitive operation. 2
LeDoux; Emotional Brain 114 Derived or nonbasic emotions tend to be more uniquely human. 0
LeDoux; Emotional Brain 114 Pride, shame, gratitude might be uniquely human emotions. 0
LeDoux; Emotional Brain 114 Basic emotions: -- joy, acceptance, fear, surprise, sadness,, disgust, anger, anticipation -  (illustration) 0
LeDoux; Emotional Brain 114 Primary dyads: - joy + acceptance = friendliness; fear + surprise = alarm 0
LeDoux; Emotional Brain 114 Secondary dyads: - joy + fear = guilt; sadness + anger = sullenness 0
LeDoux; Emotional Brain 114 Tertiary dyads: - joy + surprise = delight; anticipation + fear = anxiety 0
LeDoux; Emotional Brain 119 Shivering can occur because your are cold or because you are afraid. 5
LeDoux; Emotional Brain 119 Crying can occur in extreme happiness as well as sadness. 0
LeDoux; Emotional Brain 119 Frowning occurs in anger, but also in frustration. 0
LeDoux; Emotional Brain 119 Eyebrows are raised in anger, but also in any condition that requires that we carefully attend to the environment. 0
LeDoux; Emotional Brain 123 All vertebrates have a hindbrain, midbrain, and forebrain; all the basic structures and major neural pathways in all animals. 4
LeDoux; Emotional Brain 123 Brain evolution from fish, through amphibians and reptiles to mammals, and ultimately to humans, greatest change in the forebrain. 0
LeDoux; Emotional Brain 123 All vertebrates have areas of the cortex that correspond to the neocortex in mammals. 0
LeDoux; Emotional Brain 123 Brain evolution is basically conservative; areas that are useful for survival have been around for a long time, preserved in their basic structure and function. 0
LeDoux; Emotional Brain 125 Basic building blocks of emotions are neural systems that mediate behavioral interactions with the environment, particularly behaviors that take care of fundamental problems of survival. 2
LeDoux; Emotional Brain 125 Feelings can only occur when a survival system is present in a brain that also has the capacity for consciousness. 0
LeDoux; Emotional Brain 125 Capacity to have feelings is directly tied to the capacity to be consciously aware of one's self and the relations of oneself to the rest of the world. 0
LeDoux; Emotional Brain 139 Although a neuron usually has only one axon, it branches extensively, allowing many other neurons to be influenced. 14
LeDoux; Emotional Brain 144 Fear Conditioning - (diagram) 5
LeDoux; Emotional Brain 145 Fear conditioning is quick and very long lasting; there is little forgetting with conditioned fear. 1
LeDoux; Emotional Brain 147 Fear conditioning is an evolutionarily old solution to the problem of acquiring and storing information. 2
LeDoux; Emotional Brain 153 Auditory Processing Pathways - (diagram) 6
LeDoux; Emotional Brain 153 Auditory cortex is composed of a number of regions and subregions. 0
LeDoux; Emotional Brain 154 Neurotransmitters are manufactured in cell bodies and transported down the axon to the terminal region where they are used to communicate across synapses. 1
LeDoux; Emotional Brain 158 Pathway that can transmit information directly to the amygdala from the thalamus; elicit fear responses without the aid of the cortex. 4
LeDoux; Emotional Brain 158 Direct thalamic input to the amygdala allow the cortex to be bypassed. 0
LeDoux; Emotional Brain 158 Subregion of the amygdala -- central nucleus has connections with brain stem areas controlling heart rate and autonomic nervous system responses. 0
LeDoux; Emotional Brain 160 Different Outputs of the Amygdala Control Different Conditioned Fear Responses - (diagram) 2
LeDoux; Emotional Brain 161 Amygdala is composed of about a dozen or so subregions. 1
LeDoux; Emotional Brain 162 Information processing pathways in the Amygdala - (diagram) 1
LeDoux; Emotional Brain 162 Lateral Nucleus (LA) is the gateway into the amygdala. 0
LeDoux; Emotional Brain 162 Central Nucleus (CE) is the main connection with areas that control emotional responses. 0
LeDoux; Emotional Brain 163 It is possible that the direct thalamic pathway to the amygdala in mammals is simply an evolutionary relic, the brain's version of an appendix; however it has existed for millions of years and likely serves some useful function 1
LeDoux; Emotional Brain 164 Low road and High road to the Amygdala - (diagram) 1
LeDoux; Emotional Brain 170 Amygdala receives inputs from a wide range of levels of cognitive processing - (diagram) 6
LeDoux; Emotional Brain 174 Amygdala function established eons ago, at least since dinosaurs ruled the earth, maintained through diverse branches of evolutionally development. 4
LeDoux; Emotional Brain 177 Prefrontal cortex has expanded the most in primates and may not even exist in other mammals. 3
LeDoux; Emotional Brain 180 Long term memory - memory that lasts for more than a few seconds. 3
LeDoux; Emotional Brain 181 Declarative or Explicit memory -- conscious recall of some past experienced; memories brought to mind and described verbally. 1
LeDoux; Emotional Brain 181 Nondeclarative or Implicit memory -- learning that does not depend on conscious awareness. 0
LeDoux; Emotional Brain 182 Implicit, fear-conditioned memory, 'emotional memory' 1
LeDoux; Emotional Brain 182 Explicit declarative memory, 'memory of an emotion' 0
LeDoux; Emotional Brain 182 Memory is not mediated by any particular neural system but instead is diffusely distributed in the brain. 0
LeDoux; Emotional Brain 183 H. M., extreme epilepsy, 1953, Hartford, CT; - Explicit (conscious) memory, age 27, convulsive epileptic attacks since age 16. 1
LeDoux; Emotional Brain 184 Short-term memory lasts seconds. 1
LeDoux; Emotional Brain 184 Long-term memory lasts minutes to a lifetime. 0
LeDoux; Emotional Brain 185 What you are conscious of now, working memory, special kind of short-term memory. 1
LeDoux; Emotional Brain 185 What goes into your short-term memory is what can go into your long-term memory. 0
LeDoux; Emotional Brain 185 H. M. unable to form long-term memories. He could hold on to information for a few seconds, short-term memory. 0
LeDoux; Emotional Brain 185 Formation of long-term memories involves the temporal lobe; short-term memories involve other brain systems. 0
LeDoux; Emotional Brain 185 Brain system involved in forming new long-term memories is different from the one that stores old long-term memories. 0
LeDoux; Emotional Brain 185 H. M. had very severe anterograde amnesia but only a mild retrograde amnesia. 0
LeDoux; Emotional Brain 185 H. M.'s major deficit: depositing new learning into the long-term memory bank. 0
LeDoux; Emotional Brain 186 Temporal lobe is needed for forming long-term memories, but gradually over the years, memories become independent of this system. 1
LeDoux; Emotional Brain 186 Areas of the temporal lobe that were damaged in H. M. included major portions of the hippocampus and amygdala. 0
LeDoux; Emotional Brain 186 Hippocampus emerged as the brain region for laying down new memories. 0
LeDoux; Emotional Brain 193 Alzheimer's disease begins in the temporal lobe, particularly the hippocampus; forgetfulness is the first warning sign; eventually creeps into the neocortex; all aspects of memory along with a variety of other cortical cognitive functions. 7
LeDoux; Emotional Brain 267 Much of what a brain does during an emotion occurs outside of conscious awareness. 74
LeDoux; Emotional Brain 268 Subjective emotional experience, like the feeling of being afraid, results when we become consciously aware that an emotion system of the brain, like the defense system,  is active. 1
LeDoux; Emotional Brain 269 Success of the cognitive movement as an alternative to behaviorism was largely due to the fact that it could deal with the mind in terms of processes that occur unconsciously. 1
LeDoux; Emotional Brain 269 Working memory --  thinking occurs in a mental workspace that has a limited capacity. 0
LeDoux; Emotional Brain 270 Working memory --  temporary storage mechanism that allows several pieces of information to be held in mind at the same time and compared, contrasted, and otherwise interrelated. 1
LeDoux; Emotional Brain 270 Working memory (used to be called short-term memory) implies not just a short term storage but an active processing mechanism used in thinking and reasoning. 0
LeDoux; Emotional Brain 270 Working memory has a capacity limit of about seven pieces of information. 0
LeDoux; Emotional Brain 271 Executive functions take care of overall coordination of the activities of working memory. 1
LeDoux; Emotional Brain 278 Consciousness is the awareness of what is in working memory. 7
LeDoux; Emotional Brain 278 To be aware of something, that something must be in working memory. 0
LeDoux; Emotional Brain 278 Prefrontal areas may not store anything but instead just control the activity of other regions, allowing activity in some areas to rise above the threshold for consciousness and inhibiting the activity of others. 0
LeDoux; Emotional Brain 279 Contents of working memory are what we are conscious of at the moment. 1
LeDoux; Emotional Brain 281 Working memory is likely to be an essential aspect of consciousness, but the subjective nature of consciousness is not completely explained by the computational processes of working memory. 2
LeDoux; Emotional Brain 282 Feelings come about when the activity of specialized emotion systems gets represented in the system that gives rise to consciousness; working memory. 1
LeDoux; Emotional Brain 284 Amygdala has projections to many cortical areas. 2
LeDoux; Emotional Brain 284 Projections of the amygdala to the cortex are considerably greater than the projections from the cortex to the amygdala. 0
LeDoux; Emotional Brain 285 Orbital cortex may be especially involved in working memories about rewards and punishments. 1
LeDoux; Emotional Brain 285 By connections with short-term buffers and long-term memory networks, together with the networks of the frontal lobe, the amygdala can influence the information content of working memory. 0
LeDoux; Emotional Brain 285 Redundancy in the system; conscious awareness of amygdala activity can come about in several ways. 0
LeDoux; Emotional Brain 285 Difference between being awake and alert, on the one hand, and drowsy or asleep on the other; arousal level of the cortex. 0
LeDoux; Emotional Brain 286 The amygdala receives inputs from the latest stages of cortical processing within the sensory systems, but projects back to all stages of cortical processing, even the earliest. 1
LeDoux; Emotional Brain 286 Dream sleep, cortex is in a state of arousal, very similar to the alert waking state; no access to external stimuli and only processes internal events. 0
LeDoux; Emotional Brain 286 Amygdala's influence on sensory areas of cortex is greater than the influence of the same areas on the amygdala - (diagram) 0
LeDoux; Emotional Brain 287 Some Cortical Outputs of the Amygdala and their Function - (diagram) 1
LeDoux; Emotional Brain 287 EEG is slow and rhythmic when the cortex is not aroused; fast and out of sync during arousal. 0
LeDoux; Emotional Brain 287 When arousal occurs, cells in the cortex, and in the thalamic regions become more sensitive. 0
LeDoux; Emotional Brain 287 Aroused cells go from a state in which they fire at a very slow rate and more or less in synchrony to a state in which they are generally out of sync, but with some cells being driven especially strongly by incoming stimuli. 0
LeDoux; Emotional Brain 288 A number of different systems contribute to arousal; four are located in the brainstem. Neurotransmitters: (1) acetylcholine (Ach), (2) noradrenaline, (3) dopamine, (4) serotonin. 1
LeDoux; Emotional Brain 289 Axons of each of these cell groups terminate in widespread areas of the forebrain. 1
LeDoux; Emotional Brain 289 Arousal is important to all mental functions; contributes significantly to attention, perception, memory, emotion, and problem solving. 0
LeDoux; Emotional Brain 289 Too much arousal is not good. Overaroused; tense and anxious and unproductive; need just the right level of activation to perform optimally. 0
LeDoux; Emotional Brain 289 Emotional reactions are typically accompanied by intense cortical arousal. 0
LeDoux; Emotional Brain 289 Once the fear system is turned on, it's hard to turn it off; this is the nature of anxiety. 0
LeDoux; Emotional Brain 290 Arousal occurs in any novel stimulus and not just to emotional stimuli. A novel but insignificant stimulus elicits a temporary state of arousal that dissipates almost immediately. Arousal is prolonged in the presence of emotional stimuli. 1
LeDoux; Emotional Brain 290 Arousal elicited by a novel stimulus does not require the amygdala. 0
LeDoux; Emotional Brain 291 Arousal systems simply say that something important is going on. 1
LeDoux; Emotional Brain 291 Cognitive inference and decision making processes controlled by the working memory executive become actively focused on the emotionally arousing situation. 0
LeDoux; Emotional Brain 292 Emotional experience; autonomic nervous system (ANS); adrenaline, steroid and peptide hormones released by body organs during emotional arousal travel in the blood to the brain. 1
LeDoux; Emotional Brain 292 Visceral responses have relatively slow actions, a second or two. 0
LeDoux; Emotional Brain 293 Some hormones (adrenal steroids) require the synthesis of new proteins, take hours. 1
LeDoux; Emotional Brain 293 Gut feelings' -- entire pattern of somatic and visceral feedback from the body. 0
LeDoux; Emotional Brain 294 Vagus nerve, transmits much information from the visceral organs to the brain. 1
LeDoux; Emotional Brain 294 Nerves controlling facial movements go directly between brain and face without going through spinal cord. 0
LeDoux; Emotional Brain 295 Perils of introspection as scientific data; nothing wrong with using it as a starting point for more penetrating analysis. 1
LeDoux; Emotional Brain 295 Putting on a happy face may not be such a bad idea when you're feeling blue. 0
LeDoux; Emotional Brain 296 Can't have a conscious emotional feeling of being afraid without aspects of the emotional experience being represented in working memory. 1
LeDoux; Emotional Brain 296 Working memory is the gateway to subjective experiences, emotional and nonemotional ones, and is indispensable in the creation of a conscious emotional feeling. 0
LeDoux; Emotional Brain 297 Some Neural Ingredients of a Conscious Emotional Experience - (diagram) 1
LeDoux; Emotional Brain 298 Can't have a complete feeling of fear without the activation of the amygdala. 1
LeDoux; Emotional Brain 298 Can't have a sustained feeling of fear without the activation of arousal systems. 0
LeDoux; Emotional Brain 298 Can't have a sustained emotional experience without feedback from the body. 0
LeDoux; Emotional Brain 298 Can have emotional feeling without being conscious of the eliciting stimulus. 0
LeDoux; Emotional Brain 300 We can daydream while doing other things; go back and forth between daydream and the other activities. 2
LeDoux; Emotional Brain 300 Philosophers have something called "the problem of other minds". 0
LeDoux; Emotional Brain 301 Only higher primates, in whom the prefrontal cortex is especially well developed, are self-aware, recognize themselves in a mirror. 1
LeDoux; Emotional Brain 301 Natural language only exists in the human brain. 0
LeDoux; Emotional Brain 302 Human consciousness is the way it is because of the way our brain is. 1
LeDoux; Emotional Brain 302 Other animals may also be conscious in their own special way due to the way their brains are. 0
LeDoux; Emotional Brain 302 Still other animals are probably not conscious at all, again due to the kinds of brains they have. 0
LeDoux; Emotional Brain 302 Consciousness is not the prerequisite to nor the same thing as the capacity to think and reason. An animal can solve lots of problems without being overtly conscious of what it is doing and why it is doing it. 0
LeDoux; Emotional Brain 302 Consciousness elevates thinking to a new level, but it is not the same thing as thinking. 0
LeDoux; Emotional Brain 302 Emotional feelings result when we become consciously aware that an emotion system of the brain is active. 0
LeDoux; Emotional Brain 302 Feelings will be different in a brain that can classify the world linguistically and categorize experiences in words. 0
LeDoux; Emotional Brain 302 Difference between fear, anxiety, terror, apprehension, etc. would not be possible without language. 0
LeDoux; Emotional Brain 302 Emotions evolved not as conscious feelings, but as brain states and bodily responses. 0
LeDoux; Emotional Brain 302 Brain states and bodily responses are the fundamental facts of an emotion; conscious feelings are the frills that have added icing to the emotional cake. 0
LeDoux; Emotional Brain 303 Cortical connections with the amygdala are far greater in primates than in other mammals. 1
LeDoux; Emotional Brain