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Despite countless anecdotes and the historical significance of insight as a problem solving mechanism, its nature has long remained elusive. The conscious experience of insight is notoriously difficult to trace in non-verbal animals. Although studying insight has presented a significant challenge even to neurobiology and psychology, human neuroimaging studies have cleared the theoretical landscape, as they have begun to reveal the underlying mechanisms. The study of insight in non-human animals has, in contrast, remained limited to innovative adjustments to experimental designs within the classical approach of judging cognitive processes what does phenomenon mean in research animals, based on task performance.
This leaves no reseearch possibility of ending debates from different interpretations emerging from conflicting schools of thought. We believe that comparative cognition has thus much to gain by meaj advances from neuroscience and human cognitive psychology. We will review literature on insight mainly human and discuss the consequences of these findings to comparative cognition. A 7years old girl is standing at a table into which psychologists have fixed a vertical transparent tube containing a small basket with a handle and a sparkly sticker inside.
On the table, alongside the tubes, lie a long straight piece of pipe-cleaner and a colorful string. After inserting her what are the different types of dominance which only reaches down about a third of the tube, the girl immediately grabs the pipe-cleaner and attempts several times to use it to press the handle of the basket against the tube wall and pull it up.
The tube is too narrow and the attempts remain unsuccessful. With a hesitant movement, the colorful string is also briefly dangled into the tube before she seems to get distracted Isen et al. Roes gaze seems lost for a moment Segal, ; Kohn and Smith, when suddenly her pupils dilate Salvi et al. The hook bending paradigm is a so-called ill-structured innovation task in which the path to the solution is missing information about how to get from its start to its goal state Cutting et al.
Interestingly, children that are seven or older find the entire multistep solution to this problem very suddenly rather than in an incremental way. Notably, the hook bending task has similarly been used to test tool innovation in large brained birds and apes, which show a rather ratchet-like improvement upon solving eesearch task for the dles time rarely failing after first success; Weir, ; Bird and Emery, a ; Laumer et al.
Such moments of so-called insight are also a recurringly described and romanticized phenomenon in scientific history: Newton and that apple, Archimedes in the bathtub, and Poincaré stepping on the bus; all of them have a common pattern: someone with accumulated experience escapes for a moment from the problem to be solved and suddenly finds themselves surprised without knowing how or why with the solution.
Although there are cultural differences in the importance we attribute to insight as a source of creative output Rudowicz and Yue, ; Niu and Sternberg, ; Shao et al. Insight itself also has an important bearing in Eastern cultures. For example, in Theravada Buddhism, the goal of vipassana meditation is to reach a sudden understanding, abhisamaya insightwhich contrasts with gradually attained understanding anapurva. Both the description of the phenomenon and the way in which it is achieved, fit with the popular Western notion of insight Laukkonen and Slagter, Although we can have reasonable confidence that insight is a global phenomenon and not a myth specific to western culture a WEIRD one; Henrich et al.
Note, however, that there are various definitions of insight with some considering it as a dynamic process, and others as an end state Call, ; Kounios and Beeman, ; Shen et al. Insight is further frequently linked to a number of traits such as an impasse or a pleasant feeling of surprise that may or may not be considered essential to some authors, resulting in variation in the respective definitions as reviewed in Kounios and Beeman, ; and the reason we are using their definition.
While neuroscience has been hampered by some inconsistencies in definitions of insight see Kounios and Beeman, for examplesexperimental evidence especially due to advances in neuroimaging; e. Despite the success within neuroscience, the topic of insight and even the use of the term in best quotes on life and love with images behavior has caused significant theoretical msan in comparative cognition e.
Notably, few animal studies are included the recent literature on human problem solving or neuroscience Shettleworth, ; Call, In —, Wolgang Köhler and Graham Wallas independently published two books that had long lasting effects on the general perception of problem solving: The Mentality of Apes, by Köhler, and The Art of Thoughts, phenomeonn Wallas.
Wallas, inspired by the ideas of Hermann von Helmholtz and Henri Poincare, proposed four stages of progression for a creative process Wallas, Helmholtz, during a banquet held for his 70th birthday in resezrch, revealed how he had reached his best ideas; always after first researching a problem in detail, letting it rest, and seeking a pleasant distraction. This way he was often surprised by a solution in the form of a pleasant experience. These four stages have been recurrently used as a framework for studying insight in the psychological literature Luo and Niki, ; Jung-Beeman et al.
Almost at reserch same time, Wolfgang Köhler, one of the pioneers of Gestalt psychology, introduced the term insight into comparative psychology although this way of problem solving was already described before him in non-human animals; Turner, ; Köhler, ; Weisberg, ; Galpayage Dona and Chittka, Gestalt psychologists proposed that insight depends on different mechanisms to trial and error learning, which, according to Thorndikewas the only way in which animals could solve problems Köhler, ; Koffka, ; Duncker, ; Wertheimer, Köhler worked for years at the Casa Amarilla in Pheonmenon Canary Islands, Spain with seven chimpanzees, testing them in experiments where they had to find unusual methods to reach what does phenomenon mean in research see Figure 1.
In those experiments, Köhler found problem solving strategies that did not seem compatible with classical associative learning routines: After an unsuccessful period of trial and error, in which the hpenomenon used familiar strategies, they stopped trying. Nevertheless, after a while some of them returned with a completely different and, this time, immediately successful strategy. After their first success, the animals could immediately retrieve the correct sequence of steps on the following occasions when they faced the same problem.
Köhler, at the time, described these strategies as cognitive trial and error and insight, rather than associative processes. Figure 1. Stones must be dropped into water to have access to the liquid, or to a floating object. To have access to the hanging object, the string must be pulled first; as seem in Jacobs and Osvath Nine meaan, arranged in three parallel lines, must be linked with four connected straight lines.
E Candle problem; Duncker ; Public Domain A candle must be attached to the wall; subjects are given a box of tacks, a candle, and matches. Problem on top, solution, below. Subjects what does phenomenon mean in research given the three words on top and have to find one to link with each one wha them as the one what does phenomenon mean in research brackets.
Dunckerfor example, designed situations reeearch which everyday objects had to be used in unusual ways to solve a task e. Notably, if he asked the subjects to use these objects in their usual way before the test, the success rate was reduced. Duncker and other Gestalt psychologists e. This phenomenon is now known as functional fixedness Duncker, It was, however, the British ornithologist W. Insight is often conceptualized as a process in pheomenon a subject has a sudden realization of what does phenomenon mean in research to solve a novel problem Schooler et al.
Neuroscience typically contrasts insight with analytical reasoning within problem solving. A directly perceivable difference between the two seems to be a more or less gradual progress wbat a solution in analytical thinking Smith and Kounios,while individuals are abruptly surprised by the latter during an insightful solution Metcalfe and Wiebe, Thus, insight is believed to depend by a large degree but not completely on unconscious mental processing, as we will see in the next sections Sandkühler and Bhattacharya, ; Shen et al.
The main theoretical proposals to explain insight largely differ what does phenomenon mean in research regards to the amount of conscious processing they describe involved in an insightful event. For example, approaches, such as the representational change theory also ressarch the redistribution theory; Ohlsson,; Knoblich et al. What does phenomenon mean in research an attempt to find a bridge between the strengths of both previous theories, Weisberg proposed an integrated theory of insight comprising several phases: the individual would first attempt to find a solution by using strategies based on long-term memory; if this fails, the subject would use rules of thumb or more complex heuristics to acquire information about the problem before re-confronting its what is the simple definition of marketing management memory; then, a conscious solution via a restructuring of old and new information may thereby be achieved; and if the process reaches an impasse and new information is no longer acquired, an unconscious restructuration of knowledge would take place Weisberg, Interestingly, the four stages of Weisberg's proposal bear some parallels to those suggested by Wallas in the mid twentieth century Wallas, The fixation and impasse the repetition of incorrect strategies, and the following temporary withdrawal of actionas already described by Dunckerare likely the result of an inappropriate knowledge base Wiley, or incomplete heuristics What does phenomenon mean in research et al.
Knoblich et al. Similarly, great apes have trouble innovating a solution to a problem what does phenomenon mean in research the tools or objects at their disposal were previously used in a different way Hanus et al. It is important to highlight at this point that there are no insight problems but only insight solutions: any problem solved by insight could also be solved analytically van Steenburgh et al.
This is much less common in so-called CRAT-based challenges a specific type of word puzzle, see Figure 1 ; e. Nevertheless, the scientific approach for detecting an impasse may also be problematic Stuyck et al. Although restructuring can of course be done consciously Weisberg,it may also happen at a time during which a subject consciously withdraws from the problem at hand van Steenburgh et al. We know that insight-like responses improve when participants take a break after reaching an impasse or when the task is simply removed from their sight; Kohn and Smith,regardless of the duration of whag break, and particularly when the break is occupied with a different, cognitively demanding task; Segal, Human neuroimaging and electrophysiology-based studies suggest a significant function of the prefrontal using bad language quotes in the process of overcoming impasse to reach incubation e.
The right inferior frontal gyrus plays a role in evaluating possible solutions while the left gyrus seems dose control the suppression of inappropriate mental sets or dominantly activated associations e. This corresponds with studies reporting brain asymmetries in insight tests. Studies using insight and priming with word hints where the left hemisphere typically has an advantage; van Steenburgh et al. Associations that will result in a solution can take different routes; once strong yet incorrect associations can be overcome, weaker yet correct association can be detected Shen et al.
Interestingly, the latter is facilitated by a positive emotional state Isen phenomeno al. In humans, a positive emotional state at the start of testing is associated with increased activity in the anterior cingulate cortex which is related to monitoring cognitive conflict; Carter et al. While neurobiology and cognitive psychology embrace insightful solutions achieved by associations learned in the past, comparative cognition tends to exclude associative learning from its notion of insight, which is a misconception as insight can occur through distant or weak associations Shettleworth, ; Call, In comparative cognition, insight has occasionally been used as a default explanation upon failing to detect the typical gradual process of associative learning.
A candidate for explaining how we can learn non-obvious associations is latent learning Tolman and Honzik, ; Tolman, The nervous system can register associations without the need for positive reinforcement such as those that can be acquired through random exploration. These associations reaearch latent and are candidates for insightful solutions Thorpe, Latent associations, being weak, can be adjusted more flexibly if required Call, In contrast, strong associations can result in functional fixedness where a previous solution prevents the innovation of a new solution e.
However, the path toward a solution can be achieved by other mechanisms. According to How to make a line graph example, all interaction with the environment involves constant amendment between perceptual input and the internal models Friston et al. When the flow of input stops during an impasse, models continue to be optimized without the agent consciously perceiving it. This has been called fact-free what does phenomenon mean in research or model selection and reduction model selection, Aragones et al.
In the absence of new data, the only way we can optimize our generative models is by making them simpler Friston et al. Model reduction is a similar process to that described in the N-REM pyenomenon of sleep, where redundant connections between neurons are eliminated Tononi and Cirelli, and phnomenon are reduced in complexity in the absence of new sensory input Friston et al. Model what does phenomenon mean in research occurs neither only during sleep, nor only in humans.
Rats that move away from exploratory or spatial foraging behavior, and enter short periods of rest, have been found to have hippocampal activity similar to what we would expect in models undergoing insight-compatible changes Gupta et al. Internally generated sequences sequences of multi-neuron firing how to show the percentage difference between two numbers that do not reflect an ongoing behavioral sequence seem to be able phenomejon restructure models, not only consolidating memory but also exploring potential solutions Pezzulo et al.
This pleasant experience is probably one of the reasons why insight responses are associated with positive emotions versus analytical solutions that are negatively perceived Shen et al. This may also contribute to a better memorization and a higher success what does cycle race mean in french of insightful responses e.
In verbal tests, insight lacking major emotional changes has been reported Kounios and Beeman, Nevertheless, the impasse may be an important contributing factor to the surprise element of the insight revelation as it fosters the perception of a metacognitive error in which we solve a problem faster than expected Dubey et al. The subpersonal nature of model reduction that is, there is no explicit inner model, hence no conscious experience of the reduction process could explain why the agent becomes aware at the precise instance of a new association, and not before Metcalfe and Wiebe, ; Friston et al.
Another proposed explanation for the relation of insight with consciousness is the asymmetrical involvement of both hemispheres and the important phenomebon of the right hemisphere in key parts mexn the process see split brain perception studies, e. Furthermore, the conscious perception of the solution is plausible considering the close relationship between associative learning and consciousness Ginsburg and Jablonka,and the essential role of consciousness for the former to occur e.
Comparative cognition has attempted to tackle the presence of insight in animals by rating the speed of their performance on technical problem or their ability to transfer information from one task to another Seed and Boogert, One issue with this may be that, as mentioned earlier, there are no insight problems, only insight solutions; a problem designed to be solved by insight can also be solved by other processes van Steenburgh et al.
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